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Olen nõus

Merike Vaher

https://www.etis.ee/CV/Merike_Vaher/est
5.06.1955
620 4325
53956669
merike@chemnet.ee
A-1392-2019

Teenistuskäik

Töökohad ja ametid
01.01.2017–...   
Tallinna Tehnikaülikool, Loodusteaduskond, Keemia ja biotehnoloogia instituut, Vanemteadur (1,00)
1977-1978 - TRÜ, insener;
1978-1982 - TA Keemia Instituut, vaneminsener;
1982-2002 - TA keemia Instituut, teadur;
1999-2000 - TPÜ, lektor (osalise koormusega);
01.09.2004–31.12.2016   
Tallinna Tehnikaülikool, Matemaatika-loodusteaduskond, Keemiainstituut, Analüütilise keemia õppetool, Vanemteadur (1,00)
24.05.2001–31.08.2004   
Tallinna Tehnikaülikool, Matemaatika-loodusteaduskond, Keemiainstituut, (1,00)
 
 
Haridustee
kõrgem, Tartu Riiklik Ülikool, 1978
1973–1978   
Tartu Ülikool
 
 
Teadusorganisatsiooniline ja -administratiivne tegevus
2020−...   
Ajakirja Molecules erinumbri "Neoteersed lahustid looduslike toodete analüüsimisel ja töötlemisel" külalistoimetaja
2017−...   
Eesti Keemiaseltsi liige
Rahvusvahelise sümpoosiumi INTERLEC 11 (1989) korraldamine
Artiklite retsenseerimine
Bakalaureusetööde juhendamine
Ettekanded ravusvahelistel konverentsidel
 
 
Lisainfo
Bioloogiliste materjalide (sh vere) käitlemise ning ohutegurite koolitus, Põhja-Eesti Regionaalhaigla, mai 2016
Osalemine kaitsmiskomisjonide töös (bakalaureuse, magistri ja doktorikraadi tasemel)Magistri ja bakalaureuse tööde retsenseerimine.
Rahvusvahelise konverentsi NoSSS2009 korraldamine
Külalisdoktorandi juhendamine (20.12.2019. - 30.06.2020.): Dawit Firemichel Bebizuh (Addis Ababa Ülikool, Etioopia):
Multifunktsionaalsete MOF-ide disainimine ja iseloomustamine paberipõhiste mikrofluidika andurite jaoks

Kvalifikatsioon

Teaduskraadid
Merike Vaher, doktorikraad, 2002, (juh) Mihkel Koel; Mihkel Kaljurand, Room temperature Ionic Liquids as Background Electrolyte Additives in Capillary Electrophoretic Separations (Toatemperatuuril vedelate soolade kasutamine taustelektrolüütidena kapillaarelektroforeesis), Tallinna Tehnikaülikool, Matemaatika-loodusteaduskond, Keemiainstituut, Analüütilise keemia õppetool.
Merike Vaher, magistrikraad (teaduskraad), 1999, (juh) Kalle Truus, Kassari lahe punavetikates sisalduvate karraginaanide koostise ja struktuuri uurimine, Tallinna Tehnikaülikool, Keemia ja materjalitehnoloogia teaduskond.
 
 
Teaduspreemiad ja tunnustused
2020, Merike Vaher, Rahvusvahelise portaali AcademiaNet liige
2020, Merike Vaher, Artikkel "Use of a newly-developed portable capillary electrophoresis analyser to detect drugs of abuse in oral fluid: A case study" valiti ajakirja Talanta parimaks artikliks numbris 211, mai 2020
2018, Merike Vaher, TTÜ parim töötaja (medal “Tallinna Tehnikaülikool tunnustab”)
2007, Merike Vaher, Eesti Vabariigi Teaduspreemia
1987, Merike Vaher, Nõukogude Eesti Preemia
 
 
Teadustöö põhisuunad
ETIS KLASSIFIKAATOR: 4. Loodusteadused ja tehnika; 4.11. Keemia ja keemiatehnika; CERCS KLASSIFIKAATOR: P300 Analüütiline keemia ; TÄPSUSTUS: Kapillaarelektroforees, bioaktiivsed ühendid, biomass, alternatiivsed solvendid
 
 
Lisainfo
Külalismagistrandi Federica Telesca (University of Basilicata,Itaalia) juhendamine "Extraction and analysis of bioactive compounds from Dipsacus fullonum and Galium verum using capillary electrophoresis and HPLC-MS". 01.2018.a -06.2018.a. Kaitstud 2018.a.

Külalisdoktorandi juhendamine (20.12.2019. - 31.08.2020.): Dawit Firemichel Bebizuh (Addis Ababa Ülikool, Etioopia):
Multifunktsionaalsete MOF-ide disainimine ja iseloomustamine paberipõhiste mikrofluidika andurite jaoks

Jooksvad projektid

Lõppenud projektid

Juhendamisel väitekirjad

Juhendatud väitekirjad

Juhendatud järeldoktorid

  • 01.11.2018−31.10.2020 Martin Ruzicka "Development of drug analyzer for the determination of narcotic substances in oral fluid and exhaled breath" Charlsi Ülikoolist TTÜ-sse

Publikatsioonid

Klass
Aasta
Publikatsioon
 
1.1.
2021
Jõul, P.; Vaher, M.; Kuhtinskaja, M. (2021). Carbon aerogel-based solid-phase microextraction coating for the analysis of organophosphorus pesticides. Analytical Methods, 13, 69−76. DOI: 10.1039/D0AY02002H.
1.1.
2020
Saar-Reismaa, P.; Brilla, C. A.; Leiman, K.; Kaljurand, M.; Vaher, M.; Kulp, M.; Mazina-Šinkar, J. (2020). Use of a newly-developed portable capillary electrophoresis analyser to detect drugs of abuse in oral fluid: A case study. Talanta, 211, #120662. DOI: 10.1016/j.talanta.2019.120662.
1.1.
2020
Lees, H.; Jõul, P.; Siilak, K.; Vaher, M. (2020). Separation of perfluoroalkyl substances by using nonaqueous capillary electrophoresis with conductivity detection. Separation Science Plus, 3 (7), 313−320. DOI: 10.1002/sscp.202000016.
1.1.
2020
Koel, M.; Kuhtinskaja, M.; Vaher, M. (2020). Extraction of bioactive compounds from Catharanthus roseus and Vinca minor. Separation and Purification Technology, 252, #117438. DOI: 10.1016/j.seppur.2020.117438.
1.1.
2020
Kuhtinskaja, M.; Bragina, O.; Kulp, M.; Vaher, M. (2020). Anticancer Effect of the Iridoid Glycoside Fraction from Dipsacus fullonum L. Leaves. Natural Product Communications, 15 (9). DOI: 10.1177/1934578X20951417.
1.1.
2020
Saar-Reismaa, P.; Kotkas, K.; Rosenberg, V.; Kulp, M.; Kuhtinskaja, M.; Vaher, M. (2020). Analysis of Total Phenols, Sugars, and Mineral Elements in Colored Tubers of Solanum tuberosum L. Foods, 9. DOI: 10.3390/foods9121862.
1.1.
2019
Saar-Reismaa, P.; Tretjakova, A.; Mazina-Šinkar, J.; Vaher, M.; Kaljurand, M.; Kulp, M. (2019). Rapid and sensitive capillary electrophoresis method for the analysis of Ecstasy in an oral fluid. Talanta, 197, 390−396. DOI: 10.1016/j.talanta.2019.01.029.
5.2.
2019
Saar-Reismaa, P.; Erme, E.; Kulp, M.; Gorbatšova, J.; Kaljurand, M.; Vaher, M.; Mazina-Šinkar, J. (2019). Narkotestri arendamine narkootikumide tuvastamiseks süljes. XXXIV Eesti Keemiapäevad : 100. aastapäeva teaduskonverentsi teesid: XXXIV Eesti Keemiapäevad, Tallinn, Eesti, 18. aprill 2019. Tallinn: Eesti Keemiaselts, 27.
5.2.
2019
Kotkas, K.; Rosenberg, V.; Kulp, M.; Vaher, M. (2019). Värviliste Solanum tuberosum L. mugulates sisalduvate üldfenoolide, suhkrute ja mineraalelementide analüüs. XXXIV Eesti Keemiapäevad: 100. aastapäeva teaduskonverentsi teesid: Eesti Keemiapäevad, Tallinn, Eesti, 18.aprill 2019. Tallinn: Eesti Keemiaselts, 43.
5.2.
2019
Růžička, M.; Kaljurand, M.; Gorbatšova, J.; Saar-Reismaa, P.; Mazina-Šinkar, J.; Vaher, M. (2019). The development of portable automated extraction device for saliva samples. Book of Abstracts: 26th International Symposium on Electroseparation and Liquid Phase-Separation Techniques (ITP2019), 01.-04.09.2019, Toulouse (France). ITP, 163.
1.1.
2018
Jõul, P.; Vaher, M.; Kuhtinskaja, M. (2018). Evaluation of carbon aerogel-based solid-phase extraction sorbent for the analysis of sulfur mustard degradation products in environmental water samples. Chemosphere, 198, 460−468. DOI: 10.1016/j.chemosphere.2018.01.157.
1.1.
2018
Lees, H.; Zapata, F.; Vaher, M.; García-Ruiz, C. (2018). Simple multispectral imaging approach for determining the transfer of explosive residues in consecutive fingerprints. Talanta, 184, 437−445. DOI: 10.1016/j.talanta.2018.02.079.
1.1.
2018
Saar-Reismaa, P.; Erme, E.; Vaher, M.; Kulp, M.; Kaljurand, M.; Mazina-Šinkar, J. (2018). In situ Determination of Illegal Drugs in Oral Fluid by Portable Capillary Electrophoresis with Deep UV Excited Fluorescence Detection. Analytical Chemistry, 90 (10), 6253−6258. DOI: 10.1021/acs.analchem.8b00911.
1.1.
2018
Aid, T.; Koel, M.; Lopp, M.; Vaher, M. (2018). Metal-Catalyzed Degradation of Cellulose in Ionic Liquid Media. Inorganics, 78 (6), 1−11.10.3390/inorganics6030078.
1.1.
2018
Lees, H.; Zapata, F.; Vaher, M.; García-Ruiz C. (2018). Study of the adhesion of explosive residues to the finger and transfer to clothing and luggage. Science & Justice, 58 (6), 415−424. DOI: 10.1016/j.scijus.2018.07.002.
1.2.
2018
Kuhtinskaja, M.; Vaher, M. (2018). Extraction and analysis of bioactive compounds from Dipsacus fullonum and Galium verum for Lyme borreliosis treatment. Biomedical Journal of Scientific & Technical Research, 11 (4). DOI: 10.26717/BJSTR.2018.11.002121.
3.1.
2018
Söderström, M.; Östin, A.; Qvarnström, J.; Magnusson, R.; Rattfelt-Nyholm J.; Vaher, M.; Jõul, P.; Lees, H.; Kaljurand, M.; Szubska, M.; Vanninen, P.; Bełdowski, J. (2018). Chemical Analysis of Dumped Chemical Warfare Agents During the MODUM Project. In: Bełdowski J., Been R., Turmus E. (Ed.). Towards the Monitoring of Dumped Munitions Threat (MODUM). NATO Science for Peace and Security Series C: Environmental Security. (71−103). Dordrecht: Springer. DOI: 10.1007/978-94-024-1153-9_4.
5.2.
2018
Lees, H.; Siilak, K.; Vaher, M. (2018). Development of nonaqueous capillary electrophoresis method with conductivity detection for the analysis of perfluorinated compounds. Abstract Book: 42nd ISCC and 15th GC×GC Symposium: 42nd International Symposium on Capillary Chromatography and 15th GC×GC Symposium, Riva del Garda, Italy, 13-18 May, 2018. Ed. L. Mondello, P. Dugo. Chromaleont S.r.L, 263.
1.1.
2017
Jõul, P.; Kuhtinskaja, M.; Vaher, M.; Koel, M. (2017). Green Chemistry and reconsidering simple analytical methods. Chimica Oggi-Chemistry Today, 35 (2), 32−34.
1.1.
2017
Lees, H.; Vaher, M.; Kaljurand, M. (2017). Development and comparison of HPLC and MEKC methods for the analysis of cyclic sulfur mustard degradation products. Electrophoresis, 38 (7), 1075−1082. DOI: 10.1002/elps.201600418.
1.1.
2017
Saar-Reismaa, P.; Kulp, M.; Vaher, M.; Kaljurand, M.; Mazina-Šinkar, J. (2017). Simultaneous determination of γ-hydroxybutyric acid, ibotenic acid and psilocybin in saliva samples by capillary electrophoresis coupled with a contactless conductivity detector. Analytical Methods, 9, 3128−3133. DOI: 10.1039/C7AY00742F.
5.2.
2017
Jõul, P.; Vaher, M.; Kuhtinskaja, M. (2017). Evaluation of carbon aerogel-based SPE sorbent for the extraction of sulfur mustard degradation products from environmental water samples. Book of abstracts: 19th International Symposium on Advances in Extraction Technologies (ExTech2017): 19th International Symposium on Advances in Extraction Technologies (ExTech2017), Santiago de Compostela, Spain, June27th - June 30th 2017. Ed. Llompart Vizoso, M.; Dagnac, T.; Lamas Castro, J. P. University of Santiago de Compostela, 362.
1.1.
2016
Aid, T.; Paist, L.; Lopp, M.; Kaljurand, M.; Vaher, M. (2016). An optimized capillary electrophoresis method for the simultaneous analysis of biomass degradation products in ionic liquid containing samples. Journal of Chromatography A, 1447, 141−147. DOI: 10.1016/j.chroma.2016.04.027.
1.1.
2016
Aid, T.; Hyvärinen, S.; Vaher, M.; Koel, M.; Mikkola, J.-P. (2016). Saccharification of lignocellulosic biomasses via ionic liquid pretreatment. Industrial Crops and Products, 92, 336−341.
1.1.
2016
Gorbatsova, J.; Jaanus, M.; Vaher, M.; Kaljurand, M. (2016). Digital microfluidics platform for interfacing solid-liquid extraction column with portable capillary electropherograph for analysis of soil amino acids. Electrophoresis, 37 (3), 472−475. DOI: 10.1002/elps.201500284.
3.1.
2016
Lees, H.; Vaher, M.; Kaljurand, M. (2016). Investigation of the adsorption and desorption of sulfur mustard degradation products in sediments by capillary electrophoresis. Conference Proceedings: CECE 2016, 13th International Interdisciplinary Meeting on Bioanalysis, October 17 - 19, 2016, Brno, Czech Republic. Ed. F. Foret, J. Křenková, I. Drobníková, K. Klepárník. Institute of Analytical Chemistry of the CAS, 182−185.
3.1.
2016
Vaher, M. (2016). Ionic liquids in capillary electrophoresis. In: Koel, M. (Ed.). Analytical Applications of ionic liquids (105−136). World Scientific Publ Co Pte Ltd.
5.2.
2016
Lees, H.; Kaljurand, M.; Vaher, M. (2016). Development of HPLC and MEKC methods for the analysis of sulfur mustard cyclic degradation products. Abstract Book: 40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium: 40th ISCC and 13th GC×GC Symposium, Riva del Garda, Italy, May 29 – June 03, 2016. Ed. Mondello, L.; Dugo, P. Italy: Chromaleont S.r.L, 255.
5.2.
2016
Mazina, J.; Tretjakova, A.; Saar-Reismaa, P.; Gorbatsova, J.; Kulp, M.; Vaher, M.; Erme, E.; Kaljurand, M. (2016). Development of sensitive fluorescence detector for determination of cannabis abuse in saliva by capillary electrophoresis. Abstract book: 18th International Symposium On Advances In Extraction Technologies & 22nd International Symposium On Separation Sciences (ExTech & ISSS 2016): 18th International Symposium On Advances In Extraction Technologies & 22nd International Symposium On Separation Sciences (ExTech & ISSS 2016), Torun, Poola, Juuli 3-6, 2016.. Ed. B. Buszewski, J. Kowalska. Poland: Nicolaus Copernicus University, 176−177.
5.2.
2016
Mazina, J.; Saar-Reismaa, P.; Kuhtinskaja, M.; Kaljurand, M.; Kulp, M.; Vaher, M. (2016). Authentication Of Medicinal Cannabis By Electrophoretic Fingerprints. Abstract Book: 40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium: 40th ISCC and 13th GC×GC Symposium, Riva del Garda, Italy, May 29 – June 03, 2016. Ed. Mondello, L.; Dugo, P. Italy: Chromaleont S.r.L, 475.
5.2.
2016
Lees, H.; Avarlaid, A.; Vaher, M.; Kaljurand, M. (2016). Analysis of cyclic sulfur mustard degradation products in water samples by HPLC and CE. Book of Abstracts: 20th International Scientific Conference: EcoBalt 2016, October 9-12, Tartu, Estonia,. University of Tartu, P23.
5.2.
2016
Aid, T.; Vaher, M.; Lopp, M. (2016). Monitoring cellulose degradation and glucose conversion to 5-hydroxymethylfurfural in ionic liquids. In: Balticum Organicum Syntheticum Program and Abstracts, Riga, Latvia 3-6 July, 2016 (39).
1.1.
2015
Mazina, J.; Špiljova, A.; Vaher, M.; Kaljurand, M.; Kulp, M. (2015). Rapid capillary electrophoresis method with LED-induced native fluorescence detection for the analysis of cannabinoids in oral fluid. Analytical Methods, 7 (18), 7741−7747. DOI: 10.1039/c5ay01595b.
1.1.
2015
Kazarjan, J.; Mahlapuu, R.; Hansen, M.; Soomets, U.; Kaljurand, M.; Vaher, M. (2015). Investigation of the surfactant type and concentration effect on the retention factors of glutathione and its analogues by micellar electrokinetic chromatography. Journal of Separation Science, 38 (19), 3461−3468. DOI: 10.1002/jssc.201500567.
1.1.
2015
Jõul, P.; Lees, H.; Vaher, M.; Kobrin, E-G.; Kaljurand, M.; Kuhtinskaja, M. (2015). Development of a capillary electrophoresis method with direct UV detection for the analysis of thiodiglycol and its oxidation products. Electrophoresis, 36, 1202−1207. DOI: 10.1002/elps.201500038.
1.1.
2015
Aid, T.; Kaljurand, M.; Vaher, M. (2015). Colorimetric Determination of Total Phenolic Content in Ionic Liquid Extracts by Paper Microzones and Digital Camera. Analytical Methods, 7, 3193−3199. DOI: 10.1039/c5ay00194c.
1.1.
2015
Mazina, J.; Vaher, M.; Kuhtinskaja, M.; Poryvkina, L.; Kaljurand, M. (2015). Fluorescence, electrophoretic and chromatographic fingerprints of herbal medicines and their comparative chemometric analysis. Talanta, 139, 233−246. DOI: 10.1016/j.talanta.2015.02.050.
1.1.
2015
Kazarjan, J.; Vaher, M.; Kaljurand, M. (2015). Aggregation of phosphate and 1-tetradecyl-3-methylimidazolium chloride background electrolytes during micellar electrokinetic chromatography. Electrophoresis, 36, 1040−1042.10.1002/elps.201400448.
1.1.
2015
Kazarjan, J.; Vaher, M.; Hunter, T.; Kulp, M.; Hunter, G.; Bonetta, R.; Farrugia, D.; Kaljurand, M. (2015). Study of metal content in superoxide dismutase enzymes by capillary electrophoresis. Journal of Separation Science, 38, 1042−1045.
1.1.
2015
Mazina, J.; Saar-Reismaa, P.; Kulp, M.; Poryvkina, L.; Kaljurand, M.; Vaher, M. (2015). Determination of γ-hydroxybutyric acid in saliva by capillary electrophoresis coupled with contactless conductivity and indirect UV absorbance detectors. Electrophoresis, 36, 3042−3049. DOI: 10.1002/elps.201500293.
5.2.
2015
Mazina, J.; Saar-Reismaa, P.; Spiljova, A.; Kaljurand, M.; Kulp, M.; Vaher, M. (2015). Determonation of GHB and marijuana (THC, CBD) abuse in saliva by capillary electrophoresis. ITP2015/NoSSS2015 Final Program and Book of Abstracts. Helsingi Ülikool, YS-4.
5.2.
2015
Aid, T.; Lopp, M.; Vaher, M. (2015). Capillary electrophoresis method for determining biomass degradation products and monitoring glucose conversation to 5-hydroxymethylfurfural in ionic liquids. ITP2015/NoSSS2015 Final Program and Book of Abstracts. Helsinki University Press, P23.
5.2.
2015
Kaljurand, M.; Mazina, J.; Saar, P.; Jõul, P.; Lees, H.; Špiljova, A.; Kulp, M.; Vaher, M. (2015). Detection of banned chemicals in various matrices (saliva, sediments) by capillary electrophoresis. ITP2015/NoSSS2015 Final Program and Book of Abstracts. Helsinki, Finland: Helsinki University Press, L-36.
5.2.
2015
Lees, H.; Vaher, M.; Kaljurand, M. (2015). Analysis of thiodiglycol and its oxidation products in sediments by capillary electrophoresis. ITP2015/NoSSS2015 Final Program and Book of Abstracts: 22nd International Symposium on Electro- and Liquid Phase-Separation Techniques (ITP2015) and the 8th Nordic Separation Science (NoSSS) Symposium, Helsinki, 30 August - 3 September 2015. Helsinki, Finland: Helsinki University Press, P-55.
5.2.
2015
Lees, H.; Jõul, P.; Vaher, M.; Kuhtinskaja, M.; Kaljurand, M. (2015). Analysis of sulfur mustard hydrolysis and oxidation products in seawater and sediments by capillary electrophoresis. Science for the Environment 2015, Aarhus, Denmark, 1-2 October.
1.1.
2014
Pedastsaar, P.; Vaher, M.; Helmja, K.; Kulp, M.;Kaljurand, M.; Karp, K.; Raal, A.; Karathanos, V.; Püssa, T. (2014). The Chemical Composition of Red Wines made from Hybrid Grape and Common Crape. Proceedings of the Estonian Academy of Sciences, 63 (4), 444−453.
1.1.
2014
Vaher, M.; Borissova, M.; Seiman, A.; Aid, T.; Kolde, H.; Kazarjan, J.; Kaljurand, M. (2014). Automatic Spot Preparation and Image Processing of Paper Microzone-Based Assays for Analysis of Bioactive Compounds in Plant Extracts. Food Chemistry, 143, 465−471. DOI: 10.1016/j.foodchem.2013.08.007.
1.1.
2014
Hyvärinen, S.; Mikkola, J.P.; Murzin, T. Yu.; Vaher, M.; Kaljurand, M.; Koel, M. (2014). Sugars and sugar derivatives in ionic liquids media obtained from lignocellulosic biomass: Comparizon of capillary electrophoresis and chromatographic analysis. Catalysis Today, 223, 18−24.10.1016/j.cattod.2013.08.015.
1.1.
2014
Levandi, T.; Püssa, T.; Vaher, M.; Ingver, A.; Koppel, R.; Kaljurand, M. (2014). Principal component analysis of HPLC-MS/MS patterns of wheat (Triticum aestivum) varieties extracts. Proceedings of the Estonian Academy of Sciences, 63 (1), 86−92.
1.1.
2013
Kazarjan, J.; Vaher, M.; Mahlapuu, R.; Hansen, M.; Soomets, U.; Kaljurand, M. (2013). Separation of glutathione and its novel analogues and determination of their dissociation constants by capillary electrophoresis. Electrophoresis, 34 (12), 1820−1827.10.1002/elps.201200611.
5.2.
2013
Hyvärinen, S.; Mikkola, J.-P.; Murzin, D.Yu.; Vaher, M.; Kaljurand, M.; Koel, M. (2013). Sugar and sugar derivatives in ionic liquid media obtained from lignocellulosic biomass. Book of Abstracts: UBIOCHRM IV,Valencia, Spain, October14-16, 2013. 42.
5.2.
2013
Aid, T.; Hyvärinen, S.; Koel, M.; Vaher, M. (2013). The pretreatment of lignocellulosic biomass with ionic liquids. Book of Abstracts: UBIOCHEM IV (COST Action CM0903), 14-16 October, 2013, Valencia, Spain. Valencia, 43.
5.2.
2013
da Costa Lopes, A. M.; Aid, T.; Vaher, M.; Bogel-Lukasik, R.; Koel, M. (2013). Utilization of capillary electrophoresis technique to analyse sugars in ionic liquid. Book of Abstracts: UBIOCHEM IV (COST Action CM0903), 14-16 October, 2013, Valencia, Spain. Valencia, 98.
1.1.
2012
Truus, K.; Vaher, M.; Borissova, M.; Robal, M.; Levandi, T.; Tuvikene, R.; Toomik, P.; Kaljurand, M. (2012). Characterization of Yew Tree (Taxus) Varieties by Fingerprint and Principal Component Analyses. Natural Product Communications, 7 (9), 1143−1146.
1.1.
2012
Vaher, M.; Kaljurand, M. (2012). The Development of Paper Microzone-Based Green Analytical Chemistry Methods for Determining the Quality of Wines. Analytical and Bioanalytical Chemistry, 22, 27−29.
1.1.
2012
Vaher, M.; Helmja, K.; Käsper, A.; Kurasin, M.; Väljamäe, P.; Kudrjasova, M.; Koel, M.; Kaljurand, M. (2012). Capillary electrophoretic monitoring of hydrothermal pre-treatment and enzymatic hydrolysis of willow: comparison with HPLC and NMR. Catalysis Today, 196 (1), 34−41. DOI: 10.1016/j.cattod.2012.02.047.
5.2.
2012
Mazina, J.; Vaher, M.; Borissova, M.; Kaljurand, M. (2012). Comparative fingerprint of medicinal herb polyphenols and chemometric analysis. In: B. Buszewski & J. Kowalska (Ed.). Abstract Book (184). 29th International Symposium on Chromatography, Torun, Poland, 9-13. Sept 2012.. Torun, Poland: Wydawnictwo Adam Marszałek.
5.2.
2012
Vaher, M.; Käsper, A.; Erm, S.; Aid, T.; Koel, M. (2012). Monitoring of simultaneous saccharification and fermentation of wheat straw by HPLC and capillary electrophoresis. Book of Abstracts: COST Action CM0903: Utilization of Biomass for Sustainable Fuels and Chemicals (UBIOCHEM), Thessalonoki, Greece; 1-3 Nov 2012. Thessaloniki, 73−73.
5.2.
2012
Hyväräinen, S.; Mikkola, J.-P.; Murzin, D. Yu.; Vaher, M.; Kaljurand, M.; Koel, M. (2012). Capillary electrophoresis versus HPLC analysis method used for analyzing sugars and sugar derivatives in ionic liquid media obtained from lignocellulosic biomass. Book of Abstracts: COST Action CM0903: Utilization of Biomass for Sustainable Fuels and Chemicals (UBIOCHEM), Thessalonoki, Greece; 1-3 November 2012.. Thessaloniki, 16.www.ubiochem3.certh.gr.
1.1.
2011
Koel., M.; Borissova, M.; Vaher, M.; Kaljurand, M. (2011). Developments in the application of Green Chemistry principles to food analysis. AGRO FOOD INDUSTRY HI-TECH, 22 (5), 27−29.
1.1.
2011
Kuban, P.; Seiman, A.; Makarõtseva, N.; Vaher, M.; Kaljurand, M. (2011). In situ determination of nerve agents in various matrices by portable capillary electropherograph with contactless conductivity detection. Journal of Chromatography A, 1218 (18), 2618−2625.10.1016/j.chroma.2011.03.006.
1.1.
2011
Helmja, K.; Vaher, M.; Püssa, T.; Orav, A.; Viitak, A.; Levandi, T.; Kaljurand, M. (2011). Variation in the composition of the essential oils, phenolic compounds and mineral elements of Hypericum perforatum L. growing in Estonia. Natural Product Research, 25 (5), 496−510.10.1080/14786411003792165.
1.1.
2011
Helmja, K.; Vaher, M.; Kaljurand, M. (2011). Evaluation of the free radical scavenging capability of wheat extracts by capillary electrophoresis and multivariate curve resolution. Electrophoresis, 32 (9), 1094−1100.10.1002/elps.201000576.
1.1.
2011
Vaher, M.; Koel, M.; Kazarjan, J.; Kaljurand, M. (2011). Capillary electrophoretic analysis of neutral carbohydrates using ionic liquids as background electrolytes. Electrophoresis, 32 (9), 1068−1073.10.1002/elps.201000575.
1.1.
2011
Seiman, A.; Vaher, M.; Kaljurand, M. (2011). Thermal marks as a signal processing aid for portable capillary electropherograph. Electrophoresis, 32 (9), 1006−1014.10.1002/elps.201000572.
5.2.
2011
Helmja, K.; Käsper, A.; Kudrjasova, M.; Vaher, M. (2011). Capillary electrophoretic monitoring of products of enzymatic digestion of willow sawdust. Abstract Book & Program: nternational Conference on Materials and Technologies for Green chemistry. Ed. M. Borissova. Tallinn, Estonia: Tallinn University of Technology Press, 105.
5.2.
2011
Kaljurand, M.; Vaher, M.; Koel, M. (2011). Green analytical chemistry: setting a strategic direction. Abstract Book & Program: international Conference on Materials and Technologies for green Chemistry, Tallinn, Estonia, Sept. 5-9,2011. Ed. M. Borissova. Tallinn, Estonia: Tallinn University of Technology Press, 61.
5.2.
2011
Vaher, M.; Helmja, K.; Käsper, A.; Kudrjasova, M.; Gorbatsova, J.; Kaljurand, M. (2011). Determination of Carbohydrates in Cellulose and Enzymatically Pretreated Wood Fractions Using Capillary Electrophoresis. Program and Abstract Book: Nordic Separation Science Society 6th Conference, Riga, Latvia, August 24th-27th, 2011. Ed. H.Kazoka. Riga, Latvia: Latvian Institute of Organic synthesis, 98.
5.2.
2011
Vaher, Merike; Borissova, Maria; Truus, Kalle; Tuvikene, Rando; Robal, Marju; Kaljurand, Mihkel (2011). Characterization of the yew tree (Taxus) subspecies by fingerprints and principal components analysis. IUPAC International Congress on Analytical Sciences 2011 (22-26 May 2011 Kyoto, Japan). ICAS 2011 Organizing Committee, 23P059.
5.2.
2011
Kobrin, E-G.; Knjazeva, T., Kuban, P.; Seiman, A.; Vaher, M.; Kaljurand, M. (2011). Keskkonnaproovide laboriväline ekstraktsioon ja kapillaarelektroforeetiline analüüs. XXXII Eesti keemiapäevad : teaduskonverentsi teesid = 32th Estonian Chemistry Days : abstracts of scientific conference.
5.2.
2011
Borissova, M.; Vaher, M.; Kaljurand, N. (2011). Sample Plate Modification for Improvement of Sensitivity in Analysis of Small Molecules by MALDI-MS. IUPAC International Congress for Analytical Sciences 2011, Kyoto, Japan, May 22-26, 2011.
1.1.
2010
Tuvikene, R.; Truus, K.; Robal, M.; Volobujeva, O.; Mellikov, E.; Pehk, T.; Kollist, A.; Tiiu, K.; Vaher, M. (2010). The extraction, structure and gelling properties of hybrid galactan from the red alga Furcellaria lumbricalis (the Baltic Sea, Estonia). Journal of Applied Phycology, 22 (1), 51−63. DOI: 10.1007/s10811-009-9425-x.
1.1.
2010
Borissova, M.; Mahlapuu, R.; Vaher, M. (2010). Monitoring the redox cycle of low-molecular peptides using a modified target plate in MALDI MS. Talanta, 83, 274−280.10.1016/j.talanta.2010.08.022.
1.1.
2010
Seiman, A.; Makarõtševa, N.; Vaher, M.; Kaljurand, M. (2010). Detection of nerve agent degradation products in different soil fractions using capillary electrophoresis with contactless conductivity detection. Chemistry and Ecology, 26, 145−155.10.1080/02757540.2010.497761.
1.1.
2010
Borissova, M.; Palk, K.; Vaher, M. (2010). Rapid analysis of free fatty acid composition in Brassica rapa L. and Brassica napus L. extracts by surface-assisted laser desorption time-of-flight mass spectrometry. Procedia Chemistry, 2 (1), 174−179.
1.1.
2010
Orav, A.; Viitak, A.; Vaher, M. (2010). Identification of bioactive compounds in the leaves and stems of Aegopodium podagraria by various analytical techniques. Procedia Chemistry, 2, 152−160.
1.1.
2010
Vaher, M.; Matso, K.; Levandi, T.; Helmja, K.; Kaljurand, M. (2010). Phenolic compounds and antioxidant activity of bran, flour and whole grain of different wheat varieties. Procedia Chemistry, 2, 76−82.
1.1.
2010
Makarõtševa, N.; Seiman, A.; Vaher, M.; Kaljurand, M. (2010). Analysis of the degradation products of chemical warfare agents using a portable capillary electrophoresis instrument with various sample injection devices. Procedia Chemistry, 2, 20−25.
5.2.
2010
Mahlapuu, R.; Vaher, M.; Ida, K.; Soomets, U. (2010). Glutatiooni analoogide mõju raku redokstsükli ensüümide aktiivsusele. XXXI Eesti Keemiapäevad, Tallinn 2010. 52.
5.2.
2010
Borissova, M.; Vaher, M. (2010). On-plate concentration and analysis of low-molecular compounds using hydrophobic surfaces in MALDI MS. Abstract Book: 25th International Symposium on Microscale BioSeparations MSB 2010, Prague, Czech Republic. Institute of Analytical Chemistry AS CR, v.v.i, 182.
5.2.
2010
Knjazeva, T.; Makarõtševa, N.; Kobrin, E-G.; Helmja, K.; Seiman, A.; Vaher, M.; Kaljurand, M. (2010). Portatiivne kapillaarelektroforeesi aparaat keskkonnareostuse analüüsiks. XXXI Eesti Keemiapäevad/31st Estonian Chemistry Days; Tallinn, 2010.
1.1.
2009
Seiman, A.; Jaanus, M.; Vaher, M.; Kaljurand, M. (2009). A portable capillary electropherograph equipped with a cross-sampler and a contactless-conductivity detector for the detection of the degradation products of chemical warfare agents in soil extracts. Electrophoresis, 30, 507−514.
1.1.
2009
Tuvikene, R.; Truus, K.; Robal, M.; Pehk, T.; Kailas, T.; Vaher, M.; Paalme, T. (2009). Structure and thermal stability of pyruvated carrageenans from the red alga Coccotylus truncatus. Carbohydrate Research, 344 (6), 788−794. DOI: 10.1016/j.carres.2009.01.024.
1.1.
2009
Helmja, K.; Vaher, M.; Püssa, T.; Kaljurand, M. (2009). Analysis of the stable free radical scavenging capability of artificial polyphenol mixtures and plant extracts by capillary electrophoresis and liquid chromatography-diode array detection-tandem mass spectrometry. Journal of Chromatography A, 1216 (12), 2417−2423.
1.1.
2009
Levandi, T.; Püssa, T.; Vaher, M.; Toomik, P.; Kaljurand, M. (2009). Oxidation products of free polyunsaturated fatty acids in wheat varieties. European Journal of Lipid Science and Technoly, 111 (7), 715−722. DOI: 10.1002/ejlt.200800286.
1.1.
2009
Helmja, K.; Borissova, M.; Knjazeva, T.; Jaanus, M.; Muinasmaa, U.; Kaljurand, M.; Vaher, M. (2009). Fraction collection in capillary electrophoresis for various stand-alone mass spectrometers. Journal of Chromatography A, 1216 (17), 3666−3673.
5.2.
2009
Borissova, M.; Vaher, M. (2009). Capillary zone electrophoresis with laser desorption/ionization mass spectrometry detection for investigation of free fatty acids in artificial mixtures and different plant extracts. Abstract Book: World Congress on Oil and Fats & 28th ISF Congress, 27-30 Sept 2009, Sydney, Australia. 103.
5.2.
2009
Borissova, M; Vaher, M; Palk, K (2009). Analysis of fatty acids in plant extracts by CE-SALDI MS. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society, Tallinn, Estonia, 2009. Ed. M.Borissova, M. Vaher. Tallinn: Tallinn University of Technology Press, 125.
5.2.
2009
Matso, K; Levandi, T; Helmja, K; Vaher, M (2009). Comparison of the composition of phenolic acids and antioxidativity of different wheat varieties. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society: 5th Conference on Separation and Related Techniques by Nordic Science Society, Tallinn, Estonia, 2009. Ed. M.Borissova, M. Vaher. Tallinn: Tallinn Technical University Press, 116.
5.2.
2009
Jaanus, M.; Seiman, A.; Vaher, M.; Makarõtcheva, N.; Kuuskmäe, E.; Kaljurand, M. (2009). portable capillary electrophoresis instrument. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Separatiob Science Society, Estonia, 2009. Ed. M.Borissova, M. Vaher. Tallinn Technical University Press, 59.
5.2.
2009
Makarõtseva, N; Vaher, M; Kaljurand, M. (2009). Analysis of chemical warfare agent degradation products using portable capillary electrophoresis instrument with various injection devices. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society, Tallinn, Estonia, 2009. Ed. Maria Borissova, Merike Vaher. Tallinn: Tallinn University of Technology Press, 113.
5.2.
2009
Mahlapuu, R.; Vaher, M;. Ida, K.; Viirlaid, S.; Kaljurand, M.; Soomets, U. (2009). Dimerisation of glutathione analogues in the presence of cellular redox cycle enzymes. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society. Toim. Maria Borissova, Merike Vaher. Tallinn University of Technology Press, 112.
5.2.
2009
Orav, A; Viitak, A., Helmja, K., Vaher, M. (2009). Identification of bioactive compounds in leaves and stems of Aegopodium podagraria by various analytical technics. Abstract Book and Program: NoSSS 2009: 5th Conference on Separation and Related Techniques by Nordic Separation Science Society, Tallinn, Estonia, 26-29 Aug 2009. Ed. Maria Borissova, Merike Vaher. Tallinn: Tallinn Technical University Press, 144.
5.2.
2009
Vaher, Merike; Levandi, Tuuli; Püssa, Tõnu; Toomik, Peeter; Kaljurand, Mihkel (2009). A study of primary oxidation products of free polyunsaturated fatty acids in wheat varieties. Proceedings of World Congress on Oils and Fats & 28th ISF Congress: World Congress on Oils and Fats & 28th ISF Congress, Sydney, Australia, 27-30 September. Sydney, Australia,.
5.2.
2009
Püssa, Tõnu; Vaher, Merike; Helmja, Kati; Raudsepp, Piret; Kaljurand, Mihkel (2009). Methods of comparative analysis of the free radical scavenging capability of components of antioxidant mixtures, oral presentation. Abstract Book and Program: 5th Conference of Nordic Separation Science Society, Tallinn, 26-29 August, 2009. Ed. Maria Borissova, Merike Vaher. Tallinn: Tallinn Technical University Press, 56−56.
1.1.
2008
Helmja, K.; Vaher, M.; Püssa, T.; Raudsepp, P.; Kaljurand, M. (2008). Evaluation of antioxidative capability of the tomato (Solanum lycopersicum) skin constituents by capillary electrophoresis and high-perfoemance liquid chromatography. Electrophoresis, 3980−3988.
1.1.
2008
Seiman, A.; Vaher, M.; Kaljurand, M. (2008). Monitoring of the electroosmotic flow of ionic liquid solution in non-aqueous media using thermal marks. Journal of Chromatography A, 1189, 266−273.
3.1.
2008
Vaher, M.; Kaljurand, M. (2008). Ionic liquids as background electrolyte additives in capillary electrophoresis. In: Koel, M. (Ed.). Ionic Liquids in Chemical Analysis (185−210).. Taylor & Francis.
5.2.
2008
Helmja, K.; Vaher, M.; Orav, A.; Viitak, A.; Püssa, T.; Kaljurand, M. (2008). Comprehensive investigation of St. John's Wort (Hypericum perforatum): polyphenolic compounds, essential oils and metals. 14th International Symposium on Separation Science, Primosten, Croatia, 30 Sept - 3 Oct 2008. Zagreb: Croatian Society of Chemical Engeneerings, 59.
5.2.
2008
Vaher, M.; Borissova, M.:; Kaljurand, M.; Helmja, K. (2008). Development of fraction collection system for off-line capillary electrophoresis-mass-spectrometry. 16th International Symposium on Capillary Electroseparation Techniques, August 31-September 4, 2008, Iatly.
5.2.
2008
Raudsepp, Piret; Helmja, Kati; Raal, Ain; Vaher, Merike; Püssa, Tõnu (2008). Comparitive study of antioxidant capacity of Rheum raponticum root polyphenols. International conference on polyphenols, Salamanca, 8-11 juuli 2008.
5.2.
2008
Vaher, M.; Viitak, A.; Makarõtševa, N.; Muinasmaa, U.; Kaljurand, M. (2008). Investigation of the stability of glutathione-metal complexes and related tetrapeptides-metal complexes using capillary electrophoresis, ETAAS and ICP-MS. Book of Abstracts: 16th International Symposium on Capillary Electroseparation Techniques, Catania, Italy, August 31-September 4, 2008. Catania, Italy: Catania Ricerche, 80.
1.1.
2007
Vaher, M.; Koel, M.; Kaljurand, M. (2007). Ionic liquids in capillary electrophoresis and liquid chromatography. Chimica Oggi-Chemistry Today, 25 (6), 86−88.
1.1.
2007
Borissova, M.; Gorbatsova, J.; Ebber, A.; Kaljurand, M.; Koel, M.; Vaher, M. (2007). Nonaqueous CE using contactless conductivity detection and ionic liquids as BGEs in ACN. Electrophoresis, 28 (20), 3600−3605.
1.1.
2007
Ehala, S.; Vaher, M.; Kaljurand, M. (2007). Separation of aromatic hydrophobic sulfonates by micellar electrokinetic chromatography. Journal of Chromatography A, 1161, 322−326.
1.1.
2007
Borissova, M.; Vaher, M.; Koel, M.; Kaljurand, M. (2007). Capillary zone electrophoresis on chemically bonded imidazolium based salts. Journal of Chromatography A, 1160, 320−325.
1.1.
2007
Helmja, K.; Vaher, M.; Püssa, T.; Kamsol, K.; Orav, A.; Kaljurand, M. (2007). Bioactive components of the hop strobilus: Comparison of different extraction methods by capillary electrophoretic and chromatographic methods. Journal of Chromatography A, 1155 (2), 222−229.
1.2.
2007
Truus, K.; Viitak, A.; Vaher, M.; Muinasmaa, U.; Paasrand, K.; Tuvikene, R.; Levandi, T. (2007). Comparative determination of microelements in Baltic seawater and brown algae samples by atomic absorption spectrometric and inductively coupled plasma methods. Proceedings of the Estonian Academy of Sciences. Chemistry, 56 (3), 122−133.
1.2.
2007
Helmja, K.; Vaher, M.; Gorbatsova, J.; Kaljurand, M. (2007). Characterization of bioactive compounds contained in vegetables of the Solanaceae family by capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 56 (4), 172−186.
1.2.
2007
Vaher, M.; Borissova, M.; Koel, M.; Kaljurand, M. (2007). Ionic liquids as background electrolyte additives and coating materials in capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 56 (4), 187−198.
5.2.
2007
Helmja, K.; Gorbatshova, J.; Vaher, M.; Püssa, T.; Kaljurand, M. (2007). Complex study of bioactive compounds in egglant (Solanum Melongena). Abstracts book: 4th Nordic Separation Science Society (NoSSS) International Conference, Kaunas, August 26-29, 2007.. Kaunas: Vytautas Magnus University Press, 77.
5.2.
2007
Vaher, M.; Gorbatsova, J.; Koel, M.; Kaljurand, M. (2007). Separation of ionioc liquids in non-aqueous capillary electrophoresis using contactless conductivity detector. HPLC 2007, Abstract Book: HPLC 2007 : 31st International Symposium on High Performance Liquid Phase Separations and related techniques, Ghent, June 17-21. Ghent, Belgium, 363.
5.2.
2007
Gorbatsova, J.; Vaher, M. (2007). Determination of vitamin composition in sea buckthorn (Hippophae rhamnoides) extracts by capillary electrophoresis. HPLC 2007, Abstract book: 31st International Symposium on High Performance Liquid Phase Separations and Related Techniques, HPLC 2007, Ghent (Belgium), June 17-21, 2007. Ed. Sandra, T.; Dumont, E.; Sandra, P., 377.
6.3.
2007
Kaljurand, M.; Koel, M.; Vaher, M. (2007). Elektromigratsioonilised meetodid bioprotsesside analüüsis. Villems, R. (Toim.). Eesti Vabariigi Teaduspreemiad (54−65).. Tallinn: Eesti Teaduste Akadeemia.
1.1.
2006
Mahlapuu, R.; Vaher, M.; Ehrlich, K.; Kaljurand, M.; Soomets, U. (2006). Comparison of stability of glutathione and related synthetic tetrapeptides by HPLC and capillary electrophoresis. Journal of Peptide Science, 12 (12), 796−799.
1.1.
2006
Vaher, Merike; Viirlaid, Säde; Ehrlich, Kersti; Mahlapuu, Riina; Jarvet, Jüri; Soomets, Ursel; Kaljurand, Mihkel. (2006). Characterization of the antioxidative activity of novel nontoxic neuropeptides by using capillary electrophoresis. Electrophoresis, 13, 2582−2589.
1.1.
2006
Truus, Kalle; Tuvikene, Rando; Vaher, Merike; Kailas, T.; Toomik, Peeter; Pehk, T. (2006). Structural and compositional characteristics of gelling galactan from the red alga Ahnfeltia tobuchiensis (Ahnfeltiales, the Sea of Japan). Carbohydrate Polymers, 63 (1), 130−135.
1.2.
2006
Tuvikene, R.; Truus, K.; Vaher, M.; Kailas, T.; Martin, G.; Kersen, P. (2006). Extraction and quantification of hybrid carrageenans from the biomass of the red algae Furcellaria lumbricalis and Coccotylus truncatus. Proceedings of the Estonian Academy of Sciences. Chemistry, 55, 40−53.
5.2.
2006
Vaher, M.; Mahlapuu, R.; Ebber, A.; Soomets, U.; Kaljurand, M. (2006). Monitoring the oxidation of the gluthatione and related neuropeptides by capillary electrophoresis. Abstractbook of 10th Naples workshop on bioactiv peptides: 10th naples workshop on bioactive peptides Naples 11-14 June 2006. 142−143.
1.1.
2005
Vaher, M.; Ehala, S.; Kaljurand, M (2005). On-column capillary electrophoretic monitoring of rapid reaction kinetics for determination of the antioxidative potential of various bioactive phenols. Electrophoresis, 26, 990−1000.
1.1.
2005
Ehala, S.; Vaher, M.; Kaljurand, M (2005). Characterization of phenolic profiles of Northern European berries by capillary electrophoresis and determination of their antioxidant activity. Journal of Agricultural and Food Chemistry, 53 (16), 6484−6490.
1.1.
2005
Vaher, M.; Koel, M (2005). Specific background electrolytes for nonaqueous capillary electrophoresis. Journal of Chromatography A, 1068 (1), 83−88.
1.1.
2005
Kulp, M.; Vaher, M.; Kaljurand, M (2005). Miniaturization of sampling for chemical reaction monitoring by capillary electrophoresis. Journal of Chromatography A, 1100 (1), 126−129.
5.2.
2005
Levandi, Tuuli; Viitak, Anu; Truus, K.; Paasrand, Keddy; Tuvikene, R.; Vaher, Merike (2005). Eesti rannikumere pruunvetikad indikaatorina Läänemere toksiliste elementide reostuse hindamisel=Brown algae in coastal sea regions of Estonia as indicators of contamination with toxic elements in the Baltic sea. XXIX Eesti keemiapäevad : teaduskonverentsi ettekannete teesid = 29th Estonian Chemistry Days : abstracts of scientific conference. Tallinn: TTU Press, 56−57.
5.2.
2005
"Viitak, Anu;Volynsky, A.B.;Truus, K.;Vaher, Merike;Levandi, Tuuli" (2005). Determination of metallic and non-metallic elements in coastal seawater and in algal biomass by atomic absorption spectrometry using colloidal palladium modifier. 4th International Conference, Instrumental Methods of Analysis Modern Trends and Applications. Iraklion: TTY puuduv kirjastus, 371−371.
5.2.
2005
Ehala, Sille;Vaher, Merike;Kaljurand, Mihkel (2005). Determination of the content and profile of phenolic compounds related to the antioxidant activity for a variety of North Europe berries by capillary electrophoresis. 29th International Symposium on High Perfomance liquid Phase Separations and Related Techniques: Stokholm. Stockholm: TTY puuduv kirjastus, 686−686.
5.2.
2005
Kaljurand, Mihkel; Kulp, Maria; Ehala, Sille; Vaher, Merike (2005). Kapillaarelektroforeesi kasutamine keemiliste reaktsioonide seirel = Monitoring of chemical reactions by capillary electrophoresis. XXIX Eesti keemiapäevad : teaduskonverentsi ettekannete teesid = 29th Estonian Chemistry Days : abstracts of scientific conference. Tallinn: Tallinna Tehnikaülikooli Kirjastus, 29−29.
5.2.
2005
Kaljurand, Mihkel;Vaher, Merike (2005). Performing reactions in nanovolumes. Conference on Knowledge-based Materials and Technologies for Sustainable Chemistry : 1-5 June 2005, Tallinn, Estonia : abstract book. [Tallinn], 31−31.
5.2.
2005
Tuvikene, R.; Truus, K.; Vaher, M.; Kersen, P. (2005). Hübriidsed karraginaanid punavetikate Furcellaria lumbricalis ja Coccotylus truncatus koosluse biomassist. XXIX Eesti Keemiapäevad (123−124). . Tallinn: Infotrükk OÜ.
5.2.
2005
Tuvikene, Rando; Truus, Kalle; Kallavus, Urve; Vaher, Merike; Pehk, Tõnis (2005). Red algal galactans nature-reserving isolation, analysis and possible applications in nanotechnology. In: Conference on knowledge-based materials and techologies for sustainable chemistry (1-5 June 2005, Tallinn, Estonia). Abstract book (120). . Tallinn: Tallinna Tehnikaülikool.
1.1.
2004
Truus, K.; Vaher, M.; Koel, M.; Mahar, A.; Taure, I (2004). Analysis of bioactive ingredients in the brown alga Focus vesiculosus by capillary electrophoresis and neutron activation analysis. Analytical and Bioanalytical Chemistry, 379, 849−852.
1.1.
2004
Ehala, S.; Kaljurand, M.; Kudrjashova, M.; Vaher, M (2004). Stroboscopic sampling in comprehensive high-performance liquid chromatography-capillary electrophoresis via a pneumatic sampler. Electrophoresis, 25, 980−989.
1.2.
2004
Ehala, Sille; Kaljurand, Mihkel; Vaher, Merike (2004). Separation of polyphenols and L-ascorbic acid and investigation of their antioxidant activity by capillary electrophoresis. Eesti Teaduste Akadeemia Toimetised. Keemia (21−35)..
1.2.
2004
Ehala, S.; Vaher, M.; Kaljurand, M. (2004). rSeparation of polyphenols and L-ascorbic acid and investigation of their antioxidant activity by capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 53 (1), 21−35.
1.2.
2004
Vaher, M.; Koel, M. (2004). Electrophoretic mobilities in nonaqueos capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 53 (1), 36−45.
1.2.
2004
Ebber, A.; Ehala, S.; Kudrjashova, M.; Kulp, M.; Vaher, M.; Kaljurand, M. (2004). Flow sampling in capillary electrophoresis with pneumatically driven computerized sampler. Proceedings of the Estonian Academy of Sciences. Chemistry, 53 (1), 6−20.
1.1.
2003
Kuldvee, R.; Vaher, M.; Koel, M.; Kaljurand, M (2003). Heteroconjugation-based capillary electrophoretic separation of phenolic compounds in acetonitrile and propylene carbonate. Electrophoresis, 24 (10), 1627−1634.
1.1.
2003
Vaher, M.; Koel, M (2003). Separation of polyphenolic compounds extracted from plant matrices using capillary electrophoresis. Journal of Chromatography A, 990, 225−230.
1.2.
2003
Truus, K.; Vaher, M. (2003). Research of algal polysaccharides and related natural compounds in Estonia. Proceedings of the Estonian Academy of Sciences. Chemistry, 52 (1), 20−37.
5.2.
2003
Vaher, Merike; Truus, Kalle; Koel, Mihkel; Pehk, Tõnis; Taure, Imants; Viitak, Anu (2003). Complex investigation of composition of the brown alga Fucus vesiculosus (The Baltic sea) by different instrumental methods. Instrumental Methods of Analysis modern Trends and Applications: Conference Proceedings, Thessaloniki, 2003: International Conference on Instrumental Methods of Analysis: Modern Trends and Applications, Thessaloniki, 2003. , 238−240.
1.1.
2002
Vaher, M.; Koel, M.; Kaljurand, M. (2002). Ionic Liquids as Electrolytes for Non-aqueous Capillary. Electrophoresis, 23 (3), 426−430.
1.1.
2002
Ebber, A.; Vaher, M.; Peterson, J.; Lopp, M (2002). Application of capillary zone electrophoresis to the separation and characterization of poly(amidoamine) dendrimers with an ethylenediamine core. Journal of Chromatography A, 949, 351−358.
1.1.
2002
Vaher, M.; Koel, M.; Kaljurand, M (2002). Application of 1-alkyl-3-methylimidazolium-based ionic liquids in non-aqueous capillary electrophoresis. Journal of Chromatography A, 979, 27−32.
2.3.
2002
Vaher, M. (2002). Room temperature ionic liquids as background electrolyte additives in capillary electrophoretic separations. (Doktoritöö, Tallinna Tehnikaülikool). Tallinn: Tallinn Technical University Press.
3.4.
2002
Sokolova, M.; Vaher, M.; Koel, M. (2002). Extraction of polyphenoles from plants with modified supercritical carbon dioxide. Proceedings of the 8th Meeting on Supercritical Fluids: 8th Meeting on Supercritical Fluids, Bordeaux, 2002. , 885−888.
1.1.
2001
Vaher, M.; Koel, M.; Kaljurand, M (2001). Non-aqueous capillary electrophoresis in acetonitrile using ionic-liquid buffer electrolytes. Chromatographia, 53, S302−S306.
1.2.
2001
Truus, Kalle;Vaher, Merike;Taure, Imants (2001). Algal biomass from fucus vesiculosus (phaeophyta): investigation of the mineral and alginate components. Proceedings of the Estonian Academy of Sciences. Chemistry, 50 (2), 95−103.
5.2.
2001
Aaviksaar, A.; Haga, M.; Hansen, M.; Kann, Jüri; Koel, Mihkel; Püssa, T.; Vaher, Merike (2001). Resveratrooli sisalduse uurimine Reynoutria japonica's = Study of resveratrol content in Reynoutria japonica. XXVII Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 27th Estonian Chemistry Days : abstracts of scientific conference. Tallinn: Tallinna Tehnikaülikooli Kirjastus, 15−15.
3.5.
2000
Vaher, M.;Truus, Kalle (2000). Potentsiaalsed toidulisaained Läänemere põisadrus : eraldamine ja spetsiifika. XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (152−153).. Tallinn : Eesti Keemia Selts,: /.../.
3.5.
2000
Vaher, M.;Truus, Kalle (2000). Potential food additives from Fucus vesiculosus isolation and spetsific character. XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (152−153).. Tallinn : Eesti Keemia Selts,: /.../.
3.5.
2000
Truus, Kalle;Vaher, M.;Subbi, J. (2000). Pruunvetikate Fucus vesiculosus alginaatide ekstraktsiooni ja fragmentatsiooni uurimine. XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (146−147).. Tallinn : Eesti Keemia Selts,: /.../.
3.5.
2000
Truus, Kalle;Vaher, M.;Subbi, J. (2000). A study of extraction and fragmentation processes of alginates from brown algae Fucus vesiculosus (the Baltic Sea, Estonia). XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (lk. 146-147−0).. Tallinn : Eesti Keemia Selts,: /.../.
5.2.
1999
Vaher, Merike; Truus, Kalle; Menert, Anne; Pehk, Tõnis (1999). Colloid food additives from red and brown algae of the Baltic Sea : structure and rheology. Surface and Colloid Science: 1st Nordic-Baltic meeting. Vilnius: TTY puuduv kirjastus, 77−77.
5.2.
1999
Vaher, M.;Truus, K.; Menert, A.;Pehk, T. (1999). Colloid food additives from red and brown algae of the Baltic Sea: structure and rheology. Surface and Colloid Science : 1st Nordic-Baltic Meeting, Vilnius, 1999, 21.-25. Aug. : program and abstracts. Vilnius: /.../, 77.
1.2.
1998
Vaher, M.; Truus, K.; Taure, I.; Leito, I.; Lahe, L.; Kallavus, U.; Pehk, T. (1998). Composition and structure of summary polysaccharide from the red alga Furcellaria lumbricalis. Proceedings of the Estonian Academy of Sciences. Chemistry, 47 (2), 51−59.
5.2.
1998
Vaher, M.; Truus, K.; Ivask, Kaire; Kaljurand, Mihkel (1998). The Baltic brown alga Fucus vesiculosus as a potential raw material for alginate production. 24th Estonian Chemistry Days : abstracts of scientific conference. Tartu: Tallinna Tehnikaülikooli Kirjastus, 78−78.
1.1.
1997
Truus, K.; Vaher, M.; Usov, A.; Pehk, T.; Kollist, A. (1997). Gelling galactans from the algal community of Furcellaria lumbricalis and Coccotylus truncatus (the Baltic Sea, Estonia): a structure-property study. International Journal of Biological Macromolecules, 21, 89−96.
5.2.
1997
Vaher, M.; Truus, K.; Sarapuu, M.; Pehk, T.; Kukk, H.; Kollist, A. (1997). Industrial exploitation of the algal stratum from Kassari Bay (The Baltic Sea, Estonia). Abstracts of Scientific Conference: 23rd Estonian Chemistry Days. Tallinna Tehnikaülikool, 158.
1.2.
1996
Truus, K.; Vaher, M.; Kukk, H.; Pehk, T.; Kollist, A. (1996). Läänemere punavetikate geelistuvad galaktaanid. Proceedings of the Estonian Academy of Sciences. Chemistry, 45, 15−29.
1.2.
1993
Truus, K.; Taure, I.; Eglite, G.; Limberg, M.; Ivask, K.; Vaher, M. (1993). Micro- and trace elements content of commercial agaroses and their raw material. Proceedings of the Estonian Academy of Sciences. Chemistry, 42 (2), 87−96.
1.2.
1993
Vaher, M.; Koljak, R.; Truus, K. (1993). Activation of agarose matrix with 1,1'-carbonyldiimidazole in various conditions. Proceedings of the Estonian Academy of Sciences. Chemistry, 42 (2), 104−106.
1.2.
1989
Kollist, A. P.; Vaher, M. E.; Truus, K. E.; Paris, J. P.; Püssa, T. O. (1989). Characterization and utilization of polysaccharides isolated from agar-containing algae. S. Miyachi, I. Karube, Y. Ishida. Current Topics in Marine Biotechnology (245−248). . Tokyo: The Japanese Society for Marine Biotechnology.
1.2.
1988
Truus, K.; Välimäe, T.; Vaher, M.; Kollist, A. (1988). Characterization and utilization of polysaccharides isolated from agar-containing algae. 9. C-NMR spectroscopy of agarose carriers. Eesti NSV Teaduste Akadeemia toimetised. Keemia, 37 (3), 190−194.
1.2.
1982
Kollist, A.; Pussa, T.; Vaher, M. (1982). Isolation, characterization, and use of polysaccharides from agar-containing algae. 7. Study of the dependence of the gelling ability of polygalactans on their physicochemical properties. Eesti NSV Teaduste Akadeemia toimetised. Keemia, 31 (1), 63−71.
1.1.
1980
Horak, M.; Tuulmets, A.; Vaher, M.; Vija, S. (1980). Solvent effects on the reaction-kinetics of dialkylmagnesium with epexides. Organic Reactivity, 17 (2), 215−232.
1.2.
1980
Kollist, A.; Vaher, M.; Paris, J.; Püssa, T. (1980). Characterization and utilization of polysaccharides isolated from agar-containing algae. 4. The effect of concentration, determining temperature and storage time on the gel strength of some agars. Eesti NSV Teaduste Akadeemia toimetised. Keemia, 29, 210−214.

Tööstusomand

16.06.2021

Merike Vaher

https://www.etis.ee/CV/Merike_Vaher/eng
5.06.1955
620 4325
53956669
merike@chemnet.ee
A-1392-2019

Career

Institutions and positions
01.01.2017–...   
Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology, Senior Researcher (1,00)
1977-1978 - University of Tartu, engineer;
1978-1982 - Institute of Chemistry, sen. engineer;
1982-2002 - researcher;
1999-2000 - TPU, lecturer;
01.09.2004–31.12.2016   
Tallinn University of Technology , Faculty of Science, Department of Chemistry, Chair of Analytical Chemistry, Senior Researcher (1,00)
24.05.2001–31.08.2004   
Tallinn University of Technology , Faculty of Science, Department of Chemistry, (1,00)
 
 
Education
kõrgem, Tartu Riiklik Ülikool, 1978
1973–1978   
University of Tartu
 
 
R&D related managerial and administrative work
2020−...   
Guest editor of the special issue of Molecules, "Neoteric solvents in the analysis and processing of natural products"
2017−...   
Member of Estonian Chemical Society
International Symposium INTERLEC 11 (arrangement)
Reviewer of scientific publications
Supervisor of diploma degree thesis
Presentations on international scientific conferences
 
 
Additional information
Bioloogiliste materjalide (sh vere) käitlemise ning ohutegurite koolitus, Põhja-Eesti Regionaalhaigla, mai 2016
Towards the monitoring of dumped munitions threat (akronüüm MODUM) Principal investigator from 2014.
Rahvusvahelise konverentsi NoSSS2009 korraldamine
Supervision of short-term visiting international doctoral student (20.12.2019.- 30.06.2020): Dawit Firemichel Bebizuh (Addis Ababa University, Ethiopia) “Design and Characterization of Multifunctional MOF for Paper based Microfluidics Sensor”

Qualifications

Academic degrees
Merike Vaher, Doctor's Degree, 2002, (sup) Mihkel Koel; Mihkel Kaljurand, Room temperature Ionic Liquids as Background Electrolyte Additives in Capillary Electrophoretic Separations, Tallinn University of Technology Faculty of Science, Department of Chemistry, Chair of Analytical Chemistry.
Merike Vaher, Research Master's Degree, 1999, (sup) Kalle Truus, Kassari lahe punavetikates sisalduvate karraginaanide koostise ja struktuuri uurimine (Red algal galactans (carrageenans) derived from Kassari Bay (the Baltic Sea, Estonia): investigation of the composition and structure), Tallinn University of Technology Faculty of Chemical and Materials Technology.
 
 
Honours & awards
2020, Merike Vaher, The member of AcademicaNet: The Portal to Excellent Women Academics
2020, Merike Vaher, Publication "Use of a newly-developed portable capillary electrophoresis analyser to detect drugs of abuse in oral fluid: A case study" chosen as the featured article of Talanta issue 211, May 2020
2018, Merike Vaher, Medal - Tallinna Tehnikaülikool tunnnustab
2007, Merike Vaher, National Science Prize
1987, Merike Vaher, Premium of Soviet Estonia
 
 
Fields of research
ETIS CLASSIFICATION: 4. Natural Sciences and Engineering; 4.11. Chemistry and Chemical Technology; CERCS CLASSIFICATION: P300 Analytical chemistry ; SPECIFICATION: Capillary electrophoresis, bioactive compound, biomass, ionic liquids, deep eutectic solvents
 
 
Additional information
Supervison Federica Telesca (University of Basilicata, Italy) master's thesis "Extraction and analysis of bioactive compounds from Dipsacus fullonum and Galium verum using capillary electrophoresis and HPLC-MS"- 01.2018 - 06.2018. Defended in 2018.

Supervision of short-term visiting international doctoral student (20.12.2019.- 31.08.2020): Dawit Firemichel Bebizuh (Addis Ababa University, Ethiopia) “Design and Characterization of Multifunctional MOF for Paper based Microfluidics Sensor”

Projects in progress

Completed projects

Dissertations under supervision

Supervised dissertations

Supervision of postdoctoral researchers

  • 01.11.2018−31.10.2020    Martin Ruzicka  "Development of drug analyzer for the determination of narcotic substances in oral fluid and exhaled breath" (from Charles University in Prague to TTU)

Publications

Category
Year
Publication
 
1.1.
2021
Jõul, P.; Vaher, M.; Kuhtinskaja, M. (2021). Carbon aerogel-based solid-phase microextraction coating for the analysis of organophosphorus pesticides. Analytical Methods, 13, 69−76. DOI: 10.1039/D0AY02002H.
1.1.
2020
Saar-Reismaa, P.; Brilla, C. A.; Leiman, K.; Kaljurand, M.; Vaher, M.; Kulp, M.; Mazina-Šinkar, J. (2020). Use of a newly-developed portable capillary electrophoresis analyser to detect drugs of abuse in oral fluid: A case study. Talanta, 211, #120662. DOI: 10.1016/j.talanta.2019.120662.
1.1.
2020
Lees, H.; Jõul, P.; Siilak, K.; Vaher, M. (2020). Separation of perfluoroalkyl substances by using nonaqueous capillary electrophoresis with conductivity detection. Separation Science Plus, 3 (7), 313−320. DOI: 10.1002/sscp.202000016.
1.1.
2020
Koel, M.; Kuhtinskaja, M.; Vaher, M. (2020). Extraction of bioactive compounds from Catharanthus roseus and Vinca minor. Separation and Purification Technology, 252, #117438. DOI: 10.1016/j.seppur.2020.117438.
1.1.
2020
Kuhtinskaja, M.; Bragina, O.; Kulp, M.; Vaher, M. (2020). Anticancer Effect of the Iridoid Glycoside Fraction from Dipsacus fullonum L. Leaves. Natural Product Communications, 15 (9). DOI: 10.1177/1934578X20951417.
1.1.
2020
Saar-Reismaa, P.; Kotkas, K.; Rosenberg, V.; Kulp, M.; Kuhtinskaja, M.; Vaher, M. (2020). Analysis of Total Phenols, Sugars, and Mineral Elements in Colored Tubers of Solanum tuberosum L. Foods, 9. DOI: 10.3390/foods9121862.
1.1.
2019
Saar-Reismaa, P.; Tretjakova, A.; Mazina-Šinkar, J.; Vaher, M.; Kaljurand, M.; Kulp, M. (2019). Rapid and sensitive capillary electrophoresis method for the analysis of Ecstasy in an oral fluid. Talanta, 197, 390−396. DOI: 10.1016/j.talanta.2019.01.029.
5.2.
2019
Saar-Reismaa, P.; Erme, E.; Kulp, M.; Gorbatšova, J.; Kaljurand, M.; Vaher, M.; Mazina-Šinkar, J. (2019). Narkotestri arendamine narkootikumide tuvastamiseks süljes. XXXIV Eesti Keemiapäevad : 100. aastapäeva teaduskonverentsi teesid: XXXIV Eesti Keemiapäevad, Tallinn, Eesti, 18. aprill 2019. Tallinn: Eesti Keemiaselts, 27.
5.2.
2019
Kotkas, K.; Rosenberg, V.; Kulp, M.; Vaher, M. (2019). Värviliste Solanum tuberosum L. mugulates sisalduvate üldfenoolide, suhkrute ja mineraalelementide analüüs. XXXIV Eesti Keemiapäevad: 100. aastapäeva teaduskonverentsi teesid: Eesti Keemiapäevad, Tallinn, Eesti, 18.aprill 2019. Tallinn: Eesti Keemiaselts, 43.
5.2.
2019
Růžička, M.; Kaljurand, M.; Gorbatšova, J.; Saar-Reismaa, P.; Mazina-Šinkar, J.; Vaher, M. (2019). The development of portable automated extraction device for saliva samples. Book of Abstracts: 26th International Symposium on Electroseparation and Liquid Phase-Separation Techniques (ITP2019), 01.-04.09.2019, Toulouse (France). ITP, 163.
1.1.
2018
Jõul, P.; Vaher, M.; Kuhtinskaja, M. (2018). Evaluation of carbon aerogel-based solid-phase extraction sorbent for the analysis of sulfur mustard degradation products in environmental water samples. Chemosphere, 198, 460−468. DOI: 10.1016/j.chemosphere.2018.01.157.
1.1.
2018
Lees, H.; Zapata, F.; Vaher, M.; García-Ruiz, C. (2018). Simple multispectral imaging approach for determining the transfer of explosive residues in consecutive fingerprints. Talanta, 184, 437−445. DOI: 10.1016/j.talanta.2018.02.079.
1.1.
2018
Saar-Reismaa, P.; Erme, E.; Vaher, M.; Kulp, M.; Kaljurand, M.; Mazina-Šinkar, J. (2018). In situ Determination of Illegal Drugs in Oral Fluid by Portable Capillary Electrophoresis with Deep UV Excited Fluorescence Detection. Analytical Chemistry, 90 (10), 6253−6258. DOI: 10.1021/acs.analchem.8b00911.
1.1.
2018
Aid, T.; Koel, M.; Lopp, M.; Vaher, M. (2018). Metal-Catalyzed Degradation of Cellulose in Ionic Liquid Media. Inorganics, 78 (6), 1−11.10.3390/inorganics6030078.
1.1.
2018
Lees, H.; Zapata, F.; Vaher, M.; García-Ruiz C. (2018). Study of the adhesion of explosive residues to the finger and transfer to clothing and luggage. Science & Justice, 58 (6), 415−424. DOI: 10.1016/j.scijus.2018.07.002.
1.2.
2018
Kuhtinskaja, M.; Vaher, M. (2018). Extraction and analysis of bioactive compounds from Dipsacus fullonum and Galium verum for Lyme borreliosis treatment. Biomedical Journal of Scientific & Technical Research, 11 (4). DOI: 10.26717/BJSTR.2018.11.002121.
3.1.
2018
Söderström, M.; Östin, A.; Qvarnström, J.; Magnusson, R.; Rattfelt-Nyholm J.; Vaher, M.; Jõul, P.; Lees, H.; Kaljurand, M.; Szubska, M.; Vanninen, P.; Bełdowski, J. (2018). Chemical Analysis of Dumped Chemical Warfare Agents During the MODUM Project. In: Bełdowski J., Been R., Turmus E. (Ed.). Towards the Monitoring of Dumped Munitions Threat (MODUM). NATO Science for Peace and Security Series C: Environmental Security. (71−103). Dordrecht: Springer. DOI: 10.1007/978-94-024-1153-9_4.
5.2.
2018
Lees, H.; Siilak, K.; Vaher, M. (2018). Development of nonaqueous capillary electrophoresis method with conductivity detection for the analysis of perfluorinated compounds. Abstract Book: 42nd ISCC and 15th GC×GC Symposium: 42nd International Symposium on Capillary Chromatography and 15th GC×GC Symposium, Riva del Garda, Italy, 13-18 May, 2018. Ed. L. Mondello, P. Dugo. Chromaleont S.r.L, 263.
1.1.
2017
Jõul, P.; Kuhtinskaja, M.; Vaher, M.; Koel, M. (2017). Green Chemistry and reconsidering simple analytical methods. Chimica Oggi-Chemistry Today, 35 (2), 32−34.
1.1.
2017
Lees, H.; Vaher, M.; Kaljurand, M. (2017). Development and comparison of HPLC and MEKC methods for the analysis of cyclic sulfur mustard degradation products. Electrophoresis, 38 (7), 1075−1082. DOI: 10.1002/elps.201600418.
1.1.
2017
Saar-Reismaa, P.; Kulp, M.; Vaher, M.; Kaljurand, M.; Mazina-Šinkar, J. (2017). Simultaneous determination of γ-hydroxybutyric acid, ibotenic acid and psilocybin in saliva samples by capillary electrophoresis coupled with a contactless conductivity detector. Analytical Methods, 9, 3128−3133. DOI: 10.1039/C7AY00742F.
5.2.
2017
Jõul, P.; Vaher, M.; Kuhtinskaja, M. (2017). Evaluation of carbon aerogel-based SPE sorbent for the extraction of sulfur mustard degradation products from environmental water samples. Book of abstracts: 19th International Symposium on Advances in Extraction Technologies (ExTech2017): 19th International Symposium on Advances in Extraction Technologies (ExTech2017), Santiago de Compostela, Spain, June27th - June 30th 2017. Ed. Llompart Vizoso, M.; Dagnac, T.; Lamas Castro, J. P. University of Santiago de Compostela, 362.
1.1.
2016
Aid, T.; Paist, L.; Lopp, M.; Kaljurand, M.; Vaher, M. (2016). An optimized capillary electrophoresis method for the simultaneous analysis of biomass degradation products in ionic liquid containing samples. Journal of Chromatography A, 1447, 141−147. DOI: 10.1016/j.chroma.2016.04.027.
1.1.
2016
Aid, T.; Hyvärinen, S.; Vaher, M.; Koel, M.; Mikkola, J.-P. (2016). Saccharification of lignocellulosic biomasses via ionic liquid pretreatment. Industrial Crops and Products, 92, 336−341.
1.1.
2016
Gorbatsova, J.; Jaanus, M.; Vaher, M.; Kaljurand, M. (2016). Digital microfluidics platform for interfacing solid-liquid extraction column with portable capillary electropherograph for analysis of soil amino acids. Electrophoresis, 37 (3), 472−475. DOI: 10.1002/elps.201500284.
3.1.
2016
Lees, H.; Vaher, M.; Kaljurand, M. (2016). Investigation of the adsorption and desorption of sulfur mustard degradation products in sediments by capillary electrophoresis. Conference Proceedings: CECE 2016, 13th International Interdisciplinary Meeting on Bioanalysis, October 17 - 19, 2016, Brno, Czech Republic. Ed. F. Foret, J. Křenková, I. Drobníková, K. Klepárník. Institute of Analytical Chemistry of the CAS, 182−185.
3.1.
2016
Vaher, M. (2016). Ionic liquids in capillary electrophoresis. In: Koel, M. (Ed.). Analytical Applications of ionic liquids (105−136). World Scientific Publ Co Pte Ltd.
5.2.
2016
Lees, H.; Kaljurand, M.; Vaher, M. (2016). Development of HPLC and MEKC methods for the analysis of sulfur mustard cyclic degradation products. Abstract Book: 40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium: 40th ISCC and 13th GC×GC Symposium, Riva del Garda, Italy, May 29 – June 03, 2016. Ed. Mondello, L.; Dugo, P. Italy: Chromaleont S.r.L, 255.
5.2.
2016
Mazina, J.; Tretjakova, A.; Saar-Reismaa, P.; Gorbatsova, J.; Kulp, M.; Vaher, M.; Erme, E.; Kaljurand, M. (2016). Development of sensitive fluorescence detector for determination of cannabis abuse in saliva by capillary electrophoresis. Abstract book: 18th International Symposium On Advances In Extraction Technologies & 22nd International Symposium On Separation Sciences (ExTech & ISSS 2016): 18th International Symposium On Advances In Extraction Technologies & 22nd International Symposium On Separation Sciences (ExTech & ISSS 2016), Torun, Poola, Juuli 3-6, 2016.. Ed. B. Buszewski, J. Kowalska. Poland: Nicolaus Copernicus University, 176−177.
5.2.
2016
Mazina, J.; Saar-Reismaa, P.; Kuhtinskaja, M.; Kaljurand, M.; Kulp, M.; Vaher, M. (2016). Authentication Of Medicinal Cannabis By Electrophoretic Fingerprints. Abstract Book: 40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium: 40th ISCC and 13th GC×GC Symposium, Riva del Garda, Italy, May 29 – June 03, 2016. Ed. Mondello, L.; Dugo, P. Italy: Chromaleont S.r.L, 475.
5.2.
2016
Lees, H.; Avarlaid, A.; Vaher, M.; Kaljurand, M. (2016). Analysis of cyclic sulfur mustard degradation products in water samples by HPLC and CE. Book of Abstracts: 20th International Scientific Conference: EcoBalt 2016, October 9-12, Tartu, Estonia,. University of Tartu, P23.
5.2.
2016
Aid, T.; Vaher, M.; Lopp, M. (2016). Monitoring cellulose degradation and glucose conversion to 5-hydroxymethylfurfural in ionic liquids. In: Balticum Organicum Syntheticum Program and Abstracts, Riga, Latvia 3-6 July, 2016 (39).
1.1.
2015
Mazina, J.; Špiljova, A.; Vaher, M.; Kaljurand, M.; Kulp, M. (2015). Rapid capillary electrophoresis method with LED-induced native fluorescence detection for the analysis of cannabinoids in oral fluid. Analytical Methods, 7 (18), 7741−7747. DOI: 10.1039/c5ay01595b.
1.1.
2015
Kazarjan, J.; Mahlapuu, R.; Hansen, M.; Soomets, U.; Kaljurand, M.; Vaher, M. (2015). Investigation of the surfactant type and concentration effect on the retention factors of glutathione and its analogues by micellar electrokinetic chromatography. Journal of Separation Science, 38 (19), 3461−3468. DOI: 10.1002/jssc.201500567.
1.1.
2015
Jõul, P.; Lees, H.; Vaher, M.; Kobrin, E-G.; Kaljurand, M.; Kuhtinskaja, M. (2015). Development of a capillary electrophoresis method with direct UV detection for the analysis of thiodiglycol and its oxidation products. Electrophoresis, 36, 1202−1207. DOI: 10.1002/elps.201500038.
1.1.
2015
Aid, T.; Kaljurand, M.; Vaher, M. (2015). Colorimetric Determination of Total Phenolic Content in Ionic Liquid Extracts by Paper Microzones and Digital Camera. Analytical Methods, 7, 3193−3199. DOI: 10.1039/c5ay00194c.
1.1.
2015
Mazina, J.; Vaher, M.; Kuhtinskaja, M.; Poryvkina, L.; Kaljurand, M. (2015). Fluorescence, electrophoretic and chromatographic fingerprints of herbal medicines and their comparative chemometric analysis. Talanta, 139, 233−246. DOI: 10.1016/j.talanta.2015.02.050.
1.1.
2015
Kazarjan, J.; Vaher, M.; Kaljurand, M. (2015). Aggregation of phosphate and 1-tetradecyl-3-methylimidazolium chloride background electrolytes during micellar electrokinetic chromatography. Electrophoresis, 36, 1040−1042.10.1002/elps.201400448.
1.1.
2015
Kazarjan, J.; Vaher, M.; Hunter, T.; Kulp, M.; Hunter, G.; Bonetta, R.; Farrugia, D.; Kaljurand, M. (2015). Study of metal content in superoxide dismutase enzymes by capillary electrophoresis. Journal of Separation Science, 38, 1042−1045.
1.1.
2015
Mazina, J.; Saar-Reismaa, P.; Kulp, M.; Poryvkina, L.; Kaljurand, M.; Vaher, M. (2015). Determination of γ-hydroxybutyric acid in saliva by capillary electrophoresis coupled with contactless conductivity and indirect UV absorbance detectors. Electrophoresis, 36, 3042−3049. DOI: 10.1002/elps.201500293.
5.2.
2015
Mazina, J.; Saar-Reismaa, P.; Spiljova, A.; Kaljurand, M.; Kulp, M.; Vaher, M. (2015). Determonation of GHB and marijuana (THC, CBD) abuse in saliva by capillary electrophoresis. ITP2015/NoSSS2015 Final Program and Book of Abstracts. Helsingi Ülikool, YS-4.
5.2.
2015
Aid, T.; Lopp, M.; Vaher, M. (2015). Capillary electrophoresis method for determining biomass degradation products and monitoring glucose conversation to 5-hydroxymethylfurfural in ionic liquids. ITP2015/NoSSS2015 Final Program and Book of Abstracts. Helsinki University Press, P23.
5.2.
2015
Kaljurand, M.; Mazina, J.; Saar, P.; Jõul, P.; Lees, H.; Špiljova, A.; Kulp, M.; Vaher, M. (2015). Detection of banned chemicals in various matrices (saliva, sediments) by capillary electrophoresis. ITP2015/NoSSS2015 Final Program and Book of Abstracts. Helsinki, Finland: Helsinki University Press, L-36.
5.2.
2015
Lees, H.; Vaher, M.; Kaljurand, M. (2015). Analysis of thiodiglycol and its oxidation products in sediments by capillary electrophoresis. ITP2015/NoSSS2015 Final Program and Book of Abstracts: 22nd International Symposium on Electro- and Liquid Phase-Separation Techniques (ITP2015) and the 8th Nordic Separation Science (NoSSS) Symposium, Helsinki, 30 August - 3 September 2015. Helsinki, Finland: Helsinki University Press, P-55.
5.2.
2015
Lees, H.; Jõul, P.; Vaher, M.; Kuhtinskaja, M.; Kaljurand, M. (2015). Analysis of sulfur mustard hydrolysis and oxidation products in seawater and sediments by capillary electrophoresis. Science for the Environment 2015, Aarhus, Denmark, 1-2 October.
1.1.
2014
Pedastsaar, P.; Vaher, M.; Helmja, K.; Kulp, M.;Kaljurand, M.; Karp, K.; Raal, A.; Karathanos, V.; Püssa, T. (2014). The Chemical Composition of Red Wines made from Hybrid Grape and Common Crape. Proceedings of the Estonian Academy of Sciences, 63 (4), 444−453.
1.1.
2014
Vaher, M.; Borissova, M.; Seiman, A.; Aid, T.; Kolde, H.; Kazarjan, J.; Kaljurand, M. (2014). Automatic Spot Preparation and Image Processing of Paper Microzone-Based Assays for Analysis of Bioactive Compounds in Plant Extracts. Food Chemistry, 143, 465−471. DOI: 10.1016/j.foodchem.2013.08.007.
1.1.
2014
Hyvärinen, S.; Mikkola, J.P.; Murzin, T. Yu.; Vaher, M.; Kaljurand, M.; Koel, M. (2014). Sugars and sugar derivatives in ionic liquids media obtained from lignocellulosic biomass: Comparizon of capillary electrophoresis and chromatographic analysis. Catalysis Today, 223, 18−24.10.1016/j.cattod.2013.08.015.
1.1.
2014
Levandi, T.; Püssa, T.; Vaher, M.; Ingver, A.; Koppel, R.; Kaljurand, M. (2014). Principal component analysis of HPLC-MS/MS patterns of wheat (Triticum aestivum) varieties extracts. Proceedings of the Estonian Academy of Sciences, 63 (1), 86−92.
1.1.
2013
Kazarjan, J.; Vaher, M.; Mahlapuu, R.; Hansen, M.; Soomets, U.; Kaljurand, M. (2013). Separation of glutathione and its novel analogues and determination of their dissociation constants by capillary electrophoresis. Electrophoresis, 34 (12), 1820−1827.10.1002/elps.201200611.
5.2.
2013
Hyvärinen, S.; Mikkola, J.-P.; Murzin, D.Yu.; Vaher, M.; Kaljurand, M.; Koel, M. (2013). Sugar and sugar derivatives in ionic liquid media obtained from lignocellulosic biomass. Book of Abstracts: UBIOCHRM IV,Valencia, Spain, October14-16, 2013. 42.
5.2.
2013
Aid, T.; Hyvärinen, S.; Koel, M.; Vaher, M. (2013). The pretreatment of lignocellulosic biomass with ionic liquids. Book of Abstracts: UBIOCHEM IV (COST Action CM0903), 14-16 October, 2013, Valencia, Spain. Valencia, 43.
5.2.
2013
da Costa Lopes, A. M.; Aid, T.; Vaher, M.; Bogel-Lukasik, R.; Koel, M. (2013). Utilization of capillary electrophoresis technique to analyse sugars in ionic liquid. Book of Abstracts: UBIOCHEM IV (COST Action CM0903), 14-16 October, 2013, Valencia, Spain. Valencia, 98.
1.1.
2012
Truus, K.; Vaher, M.; Borissova, M.; Robal, M.; Levandi, T.; Tuvikene, R.; Toomik, P.; Kaljurand, M. (2012). Characterization of Yew Tree (Taxus) Varieties by Fingerprint and Principal Component Analyses. Natural Product Communications, 7 (9), 1143−1146.
1.1.
2012
Vaher, M.; Kaljurand, M. (2012). The Development of Paper Microzone-Based Green Analytical Chemistry Methods for Determining the Quality of Wines. Analytical and Bioanalytical Chemistry, 22, 27−29.
1.1.
2012
Vaher, M.; Helmja, K.; Käsper, A.; Kurasin, M.; Väljamäe, P.; Kudrjasova, M.; Koel, M.; Kaljurand, M. (2012). Capillary electrophoretic monitoring of hydrothermal pre-treatment and enzymatic hydrolysis of willow: comparison with HPLC and NMR. Catalysis Today, 196 (1), 34−41. DOI: 10.1016/j.cattod.2012.02.047.
5.2.
2012
Mazina, J.; Vaher, M.; Borissova, M.; Kaljurand, M. (2012). Comparative fingerprint of medicinal herb polyphenols and chemometric analysis. In: B. Buszewski & J. Kowalska (Ed.). Abstract Book (184). 29th International Symposium on Chromatography, Torun, Poland, 9-13. Sept 2012.. Torun, Poland: Wydawnictwo Adam Marszałek.
5.2.
2012
Vaher, M.; Käsper, A.; Erm, S.; Aid, T.; Koel, M. (2012). Monitoring of simultaneous saccharification and fermentation of wheat straw by HPLC and capillary electrophoresis. Book of Abstracts: COST Action CM0903: Utilization of Biomass for Sustainable Fuels and Chemicals (UBIOCHEM), Thessalonoki, Greece; 1-3 Nov 2012. Thessaloniki, 73−73.
5.2.
2012
Hyväräinen, S.; Mikkola, J.-P.; Murzin, D. Yu.; Vaher, M.; Kaljurand, M.; Koel, M. (2012). Capillary electrophoresis versus HPLC analysis method used for analyzing sugars and sugar derivatives in ionic liquid media obtained from lignocellulosic biomass. Book of Abstracts: COST Action CM0903: Utilization of Biomass for Sustainable Fuels and Chemicals (UBIOCHEM), Thessalonoki, Greece; 1-3 November 2012.. Thessaloniki, 16.www.ubiochem3.certh.gr.
1.1.
2011
Koel., M.; Borissova, M.; Vaher, M.; Kaljurand, M. (2011). Developments in the application of Green Chemistry principles to food analysis. AGRO FOOD INDUSTRY HI-TECH, 22 (5), 27−29.
1.1.
2011
Kuban, P.; Seiman, A.; Makarõtseva, N.; Vaher, M.; Kaljurand, M. (2011). In situ determination of nerve agents in various matrices by portable capillary electropherograph with contactless conductivity detection. Journal of Chromatography A, 1218 (18), 2618−2625.10.1016/j.chroma.2011.03.006.
1.1.
2011
Helmja, K.; Vaher, M.; Püssa, T.; Orav, A.; Viitak, A.; Levandi, T.; Kaljurand, M. (2011). Variation in the composition of the essential oils, phenolic compounds and mineral elements of Hypericum perforatum L. growing in Estonia. Natural Product Research, 25 (5), 496−510.10.1080/14786411003792165.
1.1.
2011
Helmja, K.; Vaher, M.; Kaljurand, M. (2011). Evaluation of the free radical scavenging capability of wheat extracts by capillary electrophoresis and multivariate curve resolution. Electrophoresis, 32 (9), 1094−1100.10.1002/elps.201000576.
1.1.
2011
Vaher, M.; Koel, M.; Kazarjan, J.; Kaljurand, M. (2011). Capillary electrophoretic analysis of neutral carbohydrates using ionic liquids as background electrolytes. Electrophoresis, 32 (9), 1068−1073.10.1002/elps.201000575.
1.1.
2011
Seiman, A.; Vaher, M.; Kaljurand, M. (2011). Thermal marks as a signal processing aid for portable capillary electropherograph. Electrophoresis, 32 (9), 1006−1014.10.1002/elps.201000572.
5.2.
2011
Helmja, K.; Käsper, A.; Kudrjasova, M.; Vaher, M. (2011). Capillary electrophoretic monitoring of products of enzymatic digestion of willow sawdust. Abstract Book & Program: nternational Conference on Materials and Technologies for Green chemistry. Ed. M. Borissova. Tallinn, Estonia: Tallinn University of Technology Press, 105.
5.2.
2011
Kaljurand, M.; Vaher, M.; Koel, M. (2011). Green analytical chemistry: setting a strategic direction. Abstract Book & Program: international Conference on Materials and Technologies for green Chemistry, Tallinn, Estonia, Sept. 5-9,2011. Ed. M. Borissova. Tallinn, Estonia: Tallinn University of Technology Press, 61.
5.2.
2011
Vaher, M.; Helmja, K.; Käsper, A.; Kudrjasova, M.; Gorbatsova, J.; Kaljurand, M. (2011). Determination of Carbohydrates in Cellulose and Enzymatically Pretreated Wood Fractions Using Capillary Electrophoresis. Program and Abstract Book: Nordic Separation Science Society 6th Conference, Riga, Latvia, August 24th-27th, 2011. Ed. H.Kazoka. Riga, Latvia: Latvian Institute of Organic synthesis, 98.
5.2.
2011
Vaher, Merike; Borissova, Maria; Truus, Kalle; Tuvikene, Rando; Robal, Marju; Kaljurand, Mihkel (2011). Characterization of the yew tree (Taxus) subspecies by fingerprints and principal components analysis. IUPAC International Congress on Analytical Sciences 2011 (22-26 May 2011 Kyoto, Japan). ICAS 2011 Organizing Committee, 23P059.
5.2.
2011
Kobrin, E-G.; Knjazeva, T., Kuban, P.; Seiman, A.; Vaher, M.; Kaljurand, M. (2011). Keskkonnaproovide laboriväline ekstraktsioon ja kapillaarelektroforeetiline analüüs. XXXII Eesti keemiapäevad : teaduskonverentsi teesid = 32th Estonian Chemistry Days : abstracts of scientific conference.
5.2.
2011
Borissova, M.; Vaher, M.; Kaljurand, N. (2011). Sample Plate Modification for Improvement of Sensitivity in Analysis of Small Molecules by MALDI-MS. IUPAC International Congress for Analytical Sciences 2011, Kyoto, Japan, May 22-26, 2011.
1.1.
2010
Tuvikene, R.; Truus, K.; Robal, M.; Volobujeva, O.; Mellikov, E.; Pehk, T.; Kollist, A.; Tiiu, K.; Vaher, M. (2010). The extraction, structure and gelling properties of hybrid galactan from the red alga Furcellaria lumbricalis (the Baltic Sea, Estonia). Journal of Applied Phycology, 22 (1), 51−63. DOI: 10.1007/s10811-009-9425-x.
1.1.
2010
Borissova, M.; Mahlapuu, R.; Vaher, M. (2010). Monitoring the redox cycle of low-molecular peptides using a modified target plate in MALDI MS. Talanta, 83, 274−280.10.1016/j.talanta.2010.08.022.
1.1.
2010
Seiman, A.; Makarõtševa, N.; Vaher, M.; Kaljurand, M. (2010). Detection of nerve agent degradation products in different soil fractions using capillary electrophoresis with contactless conductivity detection. Chemistry and Ecology, 26, 145−155.10.1080/02757540.2010.497761.
1.1.
2010
Borissova, M.; Palk, K.; Vaher, M. (2010). Rapid analysis of free fatty acid composition in Brassica rapa L. and Brassica napus L. extracts by surface-assisted laser desorption time-of-flight mass spectrometry. Procedia Chemistry, 2 (1), 174−179.
1.1.
2010
Orav, A.; Viitak, A.; Vaher, M. (2010). Identification of bioactive compounds in the leaves and stems of Aegopodium podagraria by various analytical techniques. Procedia Chemistry, 2, 152−160.
1.1.
2010
Vaher, M.; Matso, K.; Levandi, T.; Helmja, K.; Kaljurand, M. (2010). Phenolic compounds and antioxidant activity of bran, flour and whole grain of different wheat varieties. Procedia Chemistry, 2, 76−82.
1.1.
2010
Makarõtševa, N.; Seiman, A.; Vaher, M.; Kaljurand, M. (2010). Analysis of the degradation products of chemical warfare agents using a portable capillary electrophoresis instrument with various sample injection devices. Procedia Chemistry, 2, 20−25.
5.2.
2010
Mahlapuu, R.; Vaher, M.; Ida, K.; Soomets, U. (2010). Glutatiooni analoogide mõju raku redokstsükli ensüümide aktiivsusele. XXXI Eesti Keemiapäevad, Tallinn 2010. 52.
5.2.
2010
Borissova, M.; Vaher, M. (2010). On-plate concentration and analysis of low-molecular compounds using hydrophobic surfaces in MALDI MS. Abstract Book: 25th International Symposium on Microscale BioSeparations MSB 2010, Prague, Czech Republic. Institute of Analytical Chemistry AS CR, v.v.i, 182.
5.2.
2010
Knjazeva, T.; Makarõtševa, N.; Kobrin, E-G.; Helmja, K.; Seiman, A.; Vaher, M.; Kaljurand, M. (2010). Portatiivne kapillaarelektroforeesi aparaat keskkonnareostuse analüüsiks. XXXI Eesti Keemiapäevad/31st Estonian Chemistry Days; Tallinn, 2010.
1.1.
2009
Seiman, A.; Jaanus, M.; Vaher, M.; Kaljurand, M. (2009). A portable capillary electropherograph equipped with a cross-sampler and a contactless-conductivity detector for the detection of the degradation products of chemical warfare agents in soil extracts. Electrophoresis, 30, 507−514.
1.1.
2009
Tuvikene, R.; Truus, K.; Robal, M.; Pehk, T.; Kailas, T.; Vaher, M.; Paalme, T. (2009). Structure and thermal stability of pyruvated carrageenans from the red alga Coccotylus truncatus. Carbohydrate Research, 344 (6), 788−794. DOI: 10.1016/j.carres.2009.01.024.
1.1.
2009
Helmja, K.; Vaher, M.; Püssa, T.; Kaljurand, M. (2009). Analysis of the stable free radical scavenging capability of artificial polyphenol mixtures and plant extracts by capillary electrophoresis and liquid chromatography-diode array detection-tandem mass spectrometry. Journal of Chromatography A, 1216 (12), 2417−2423.
1.1.
2009
Levandi, T.; Püssa, T.; Vaher, M.; Toomik, P.; Kaljurand, M. (2009). Oxidation products of free polyunsaturated fatty acids in wheat varieties. European Journal of Lipid Science and Technoly, 111 (7), 715−722. DOI: 10.1002/ejlt.200800286.
1.1.
2009
Helmja, K.; Borissova, M.; Knjazeva, T.; Jaanus, M.; Muinasmaa, U.; Kaljurand, M.; Vaher, M. (2009). Fraction collection in capillary electrophoresis for various stand-alone mass spectrometers. Journal of Chromatography A, 1216 (17), 3666−3673.
5.2.
2009
Borissova, M.; Vaher, M. (2009). Capillary zone electrophoresis with laser desorption/ionization mass spectrometry detection for investigation of free fatty acids in artificial mixtures and different plant extracts. Abstract Book: World Congress on Oil and Fats & 28th ISF Congress, 27-30 Sept 2009, Sydney, Australia. 103.
5.2.
2009
Borissova, M; Vaher, M; Palk, K (2009). Analysis of fatty acids in plant extracts by CE-SALDI MS. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society, Tallinn, Estonia, 2009. Ed. M.Borissova, M. Vaher. Tallinn: Tallinn University of Technology Press, 125.
5.2.
2009
Matso, K; Levandi, T; Helmja, K; Vaher, M (2009). Comparison of the composition of phenolic acids and antioxidativity of different wheat varieties. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society: 5th Conference on Separation and Related Techniques by Nordic Science Society, Tallinn, Estonia, 2009. Ed. M.Borissova, M. Vaher. Tallinn: Tallinn Technical University Press, 116.
5.2.
2009
Jaanus, M.; Seiman, A.; Vaher, M.; Makarõtcheva, N.; Kuuskmäe, E.; Kaljurand, M. (2009). portable capillary electrophoresis instrument. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Separatiob Science Society, Estonia, 2009. Ed. M.Borissova, M. Vaher. Tallinn Technical University Press, 59.
5.2.
2009
Makarõtseva, N; Vaher, M; Kaljurand, M. (2009). Analysis of chemical warfare agent degradation products using portable capillary electrophoresis instrument with various injection devices. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society, Tallinn, Estonia, 2009. Ed. Maria Borissova, Merike Vaher. Tallinn: Tallinn University of Technology Press, 113.
5.2.
2009
Mahlapuu, R.; Vaher, M;. Ida, K.; Viirlaid, S.; Kaljurand, M.; Soomets, U. (2009). Dimerisation of glutathione analogues in the presence of cellular redox cycle enzymes. Abstract Book and Program: 5th Conference on Separation and Related Techniques by Nordic Science Society. Toim. Maria Borissova, Merike Vaher. Tallinn University of Technology Press, 112.
5.2.
2009
Orav, A; Viitak, A., Helmja, K., Vaher, M. (2009). Identification of bioactive compounds in leaves and stems of Aegopodium podagraria by various analytical technics. Abstract Book and Program: NoSSS 2009: 5th Conference on Separation and Related Techniques by Nordic Separation Science Society, Tallinn, Estonia, 26-29 Aug 2009. Ed. Maria Borissova, Merike Vaher. Tallinn: Tallinn Technical University Press, 144.
5.2.
2009
Vaher, Merike; Levandi, Tuuli; Püssa, Tõnu; Toomik, Peeter; Kaljurand, Mihkel (2009). A study of primary oxidation products of free polyunsaturated fatty acids in wheat varieties. Proceedings of World Congress on Oils and Fats & 28th ISF Congress: World Congress on Oils and Fats & 28th ISF Congress, Sydney, Australia, 27-30 September. Sydney, Australia,.
5.2.
2009
Püssa, Tõnu; Vaher, Merike; Helmja, Kati; Raudsepp, Piret; Kaljurand, Mihkel (2009). Methods of comparative analysis of the free radical scavenging capability of components of antioxidant mixtures, oral presentation. Abstract Book and Program: 5th Conference of Nordic Separation Science Society, Tallinn, 26-29 August, 2009. Ed. Maria Borissova, Merike Vaher. Tallinn: Tallinn Technical University Press, 56−56.
1.1.
2008
Helmja, K.; Vaher, M.; Püssa, T.; Raudsepp, P.; Kaljurand, M. (2008). Evaluation of antioxidative capability of the tomato (Solanum lycopersicum) skin constituents by capillary electrophoresis and high-perfoemance liquid chromatography. Electrophoresis, 3980−3988.
1.1.
2008
Seiman, A.; Vaher, M.; Kaljurand, M. (2008). Monitoring of the electroosmotic flow of ionic liquid solution in non-aqueous media using thermal marks. Journal of Chromatography A, 1189, 266−273.
3.1.
2008
Vaher, M.; Kaljurand, M. (2008). Ionic liquids as background electrolyte additives in capillary electrophoresis. In: Koel, M. (Ed.). Ionic Liquids in Chemical Analysis (185−210).. Taylor & Francis.
5.2.
2008
Helmja, K.; Vaher, M.; Orav, A.; Viitak, A.; Püssa, T.; Kaljurand, M. (2008). Comprehensive investigation of St. John's Wort (Hypericum perforatum): polyphenolic compounds, essential oils and metals. 14th International Symposium on Separation Science, Primosten, Croatia, 30 Sept - 3 Oct 2008. Zagreb: Croatian Society of Chemical Engeneerings, 59.
5.2.
2008
Vaher, M.; Borissova, M.:; Kaljurand, M.; Helmja, K. (2008). Development of fraction collection system for off-line capillary electrophoresis-mass-spectrometry. 16th International Symposium on Capillary Electroseparation Techniques, August 31-September 4, 2008, Iatly.
5.2.
2008
Raudsepp, Piret; Helmja, Kati; Raal, Ain; Vaher, Merike; Püssa, Tõnu (2008). Comparitive study of antioxidant capacity of Rheum raponticum root polyphenols. International conference on polyphenols, Salamanca, 8-11 juuli 2008.
5.2.
2008
Vaher, M.; Viitak, A.; Makarõtševa, N.; Muinasmaa, U.; Kaljurand, M. (2008). Investigation of the stability of glutathione-metal complexes and related tetrapeptides-metal complexes using capillary electrophoresis, ETAAS and ICP-MS. Book of Abstracts: 16th International Symposium on Capillary Electroseparation Techniques, Catania, Italy, August 31-September 4, 2008. Catania, Italy: Catania Ricerche, 80.
1.1.
2007
Vaher, M.; Koel, M.; Kaljurand, M. (2007). Ionic liquids in capillary electrophoresis and liquid chromatography. Chimica Oggi-Chemistry Today, 25 (6), 86−88.
1.1.
2007
Borissova, M.; Gorbatsova, J.; Ebber, A.; Kaljurand, M.; Koel, M.; Vaher, M. (2007). Nonaqueous CE using contactless conductivity detection and ionic liquids as BGEs in ACN. Electrophoresis, 28 (20), 3600−3605.
1.1.
2007
Ehala, S.; Vaher, M.; Kaljurand, M. (2007). Separation of aromatic hydrophobic sulfonates by micellar electrokinetic chromatography. Journal of Chromatography A, 1161, 322−326.
1.1.
2007
Borissova, M.; Vaher, M.; Koel, M.; Kaljurand, M. (2007). Capillary zone electrophoresis on chemically bonded imidazolium based salts. Journal of Chromatography A, 1160, 320−325.
1.1.
2007
Helmja, K.; Vaher, M.; Püssa, T.; Kamsol, K.; Orav, A.; Kaljurand, M. (2007). Bioactive components of the hop strobilus: Comparison of different extraction methods by capillary electrophoretic and chromatographic methods. Journal of Chromatography A, 1155 (2), 222−229.
1.2.
2007
Truus, K.; Viitak, A.; Vaher, M.; Muinasmaa, U.; Paasrand, K.; Tuvikene, R.; Levandi, T. (2007). Comparative determination of microelements in Baltic seawater and brown algae samples by atomic absorption spectrometric and inductively coupled plasma methods. Proceedings of the Estonian Academy of Sciences. Chemistry, 56 (3), 122−133.
1.2.
2007
Helmja, K.; Vaher, M.; Gorbatsova, J.; Kaljurand, M. (2007). Characterization of bioactive compounds contained in vegetables of the Solanaceae family by capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 56 (4), 172−186.
1.2.
2007
Vaher, M.; Borissova, M.; Koel, M.; Kaljurand, M. (2007). Ionic liquids as background electrolyte additives and coating materials in capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 56 (4), 187−198.
5.2.
2007
Helmja, K.; Gorbatshova, J.; Vaher, M.; Püssa, T.; Kaljurand, M. (2007). Complex study of bioactive compounds in egglant (Solanum Melongena). Abstracts book: 4th Nordic Separation Science Society (NoSSS) International Conference, Kaunas, August 26-29, 2007.. Kaunas: Vytautas Magnus University Press, 77.
5.2.
2007
Vaher, M.; Gorbatsova, J.; Koel, M.; Kaljurand, M. (2007). Separation of ionioc liquids in non-aqueous capillary electrophoresis using contactless conductivity detector. HPLC 2007, Abstract Book: HPLC 2007 : 31st International Symposium on High Performance Liquid Phase Separations and related techniques, Ghent, June 17-21. Ghent, Belgium, 363.
5.2.
2007
Gorbatsova, J.; Vaher, M. (2007). Determination of vitamin composition in sea buckthorn (Hippophae rhamnoides) extracts by capillary electrophoresis. HPLC 2007, Abstract book: 31st International Symposium on High Performance Liquid Phase Separations and Related Techniques, HPLC 2007, Ghent (Belgium), June 17-21, 2007. Ed. Sandra, T.; Dumont, E.; Sandra, P., 377.
6.3.
2007
Kaljurand, M.; Koel, M.; Vaher, M. (2007). Elektromigratsioonilised meetodid bioprotsesside analüüsis [Bioprocess Analysis by Electromigration Methods]. Villems, R. (Toim.). Eesti Vabariigi Teaduspreemiad (54−65).. Tallinn: Eesti Teaduste Akadeemia.
1.1.
2006
Mahlapuu, R.; Vaher, M.; Ehrlich, K.; Kaljurand, M.; Soomets, U. (2006). Comparison of stability of glutathione and related synthetic tetrapeptides by HPLC and capillary electrophoresis. Journal of Peptide Science, 12 (12), 796−799.
1.1.
2006
Vaher, Merike; Viirlaid, Säde; Ehrlich, Kersti; Mahlapuu, Riina; Jarvet, Jüri; Soomets, Ursel; Kaljurand, Mihkel. (2006). Characterization of the antioxidative activity of novel nontoxic neuropeptides by using capillary electrophoresis. Electrophoresis, 13, 2582−2589.
1.1.
2006
Truus, Kalle; Tuvikene, Rando; Vaher, Merike; Kailas, T.; Toomik, Peeter; Pehk, T. (2006). Structural and compositional characteristics of gelling galactan from the red alga Ahnfeltia tobuchiensis (Ahnfeltiales, the Sea of Japan). Carbohydrate Polymers, 63 (1), 130−135.
1.2.
2006
Tuvikene, R.; Truus, K.; Vaher, M.; Kailas, T.; Martin, G.; Kersen, P. (2006). Extraction and quantification of hybrid carrageenans from the biomass of the red algae Furcellaria lumbricalis and Coccotylus truncatus. Proceedings of the Estonian Academy of Sciences. Chemistry, 55, 40−53.
5.2.
2006
Vaher, M.; Mahlapuu, R.; Ebber, A.; Soomets, U.; Kaljurand, M. (2006). Monitoring the oxidation of the gluthatione and related neuropeptides by capillary electrophoresis. Abstractbook of 10th Naples workshop on bioactiv peptides: 10th naples workshop on bioactive peptides Naples 11-14 June 2006. 142−143.
1.1.
2005
Vaher, M.; Ehala, S.; Kaljurand, M (2005). On-column capillary electrophoretic monitoring of rapid reaction kinetics for determination of the antioxidative potential of various bioactive phenols. Electrophoresis, 26, 990−1000.
1.1.
2005
Ehala, S.; Vaher, M.; Kaljurand, M (2005). Characterization of phenolic profiles of Northern European berries by capillary electrophoresis and determination of their antioxidant activity. Journal of Agricultural and Food Chemistry, 53 (16), 6484−6490.
1.1.
2005
Vaher, M.; Koel, M (2005). Specific background electrolytes for nonaqueous capillary electrophoresis. Journal of Chromatography A, 1068 (1), 83−88.
1.1.
2005
Kulp, M.; Vaher, M.; Kaljurand, M (2005). Miniaturization of sampling for chemical reaction monitoring by capillary electrophoresis. Journal of Chromatography A, 1100 (1), 126−129.
5.2.
2005
Levandi, Tuuli; Viitak, Anu; Truus, K.; Paasrand, Keddy; Tuvikene, R.; Vaher, Merike (2005). Eesti rannikumere pruunvetikad indikaatorina Läänemere toksiliste elementide reostuse hindamisel=Brown algae in coastal sea regions of Estonia as indicators of contamination with toxic elements in the Baltic sea. XXIX Eesti keemiapäevad : teaduskonverentsi ettekannete teesid = 29th Estonian Chemistry Days : abstracts of scientific conference. Tallinn: TTU Press, 56−57.
5.2.
2005
"Viitak, Anu;Volynsky, A.B.;Truus, K.;Vaher, Merike;Levandi, Tuuli" (2005). Determination of metallic and non-metallic elements in coastal seawater and in algal biomass by atomic absorption spectrometry using colloidal palladium modifier. 4th International Conference, Instrumental Methods of Analysis Modern Trends and Applications. Iraklion: TTY puuduv kirjastus, 371−371.
5.2.
2005
Ehala, Sille;Vaher, Merike;Kaljurand, Mihkel (2005). Determination of the content and profile of phenolic compounds related to the antioxidant activity for a variety of North Europe berries by capillary electrophoresis. 29th International Symposium on High Perfomance liquid Phase Separations and Related Techniques: Stokholm. Stockholm: TTY puuduv kirjastus, 686−686.
5.2.
2005
Kaljurand, Mihkel; Kulp, Maria; Ehala, Sille; Vaher, Merike (2005). Kapillaarelektroforeesi kasutamine keemiliste reaktsioonide seirel = Monitoring of chemical reactions by capillary electrophoresis. XXIX Eesti keemiapäevad : teaduskonverentsi ettekannete teesid = 29th Estonian Chemistry Days : abstracts of scientific conference. Tallinn: Tallinna Tehnikaülikooli Kirjastus, 29−29.
5.2.
2005
Kaljurand, Mihkel;Vaher, Merike (2005). Performing reactions in nanovolumes. Conference on Knowledge-based Materials and Technologies for Sustainable Chemistry : 1-5 June 2005, Tallinn, Estonia : abstract book. [Tallinn], 31−31.
5.2.
2005
Tuvikene, R.; Truus, K.; Vaher, M.; Kersen, P. (2005). Hübriidsed karraginaanid punavetikate Furcellaria lumbricalis ja Coccotylus truncatus koosluse biomassist [Hybrid carrageenans from red algal biomass of Furcellaria lumbricalis and Coccotylus truncatus]. XXIX Eesti Keemiapäevad (123−124). . Tallinn: Infotrükk OÜ.
5.2.
2005
Tuvikene, Rando; Truus, Kalle; Kallavus, Urve; Vaher, Merike; Pehk, Tõnis (2005). Red algal galactans nature-reserving isolation, analysis and possible applications in nanotechnology. In: Conference on knowledge-based materials and techologies for sustainable chemistry (1-5 June 2005, Tallinn, Estonia). Abstract book (120). . Tallinn: Tallinna Tehnikaülikool.
1.1.
2004
Truus, K.; Vaher, M.; Koel, M.; Mahar, A.; Taure, I (2004). Analysis of bioactive ingredients in the brown alga Focus vesiculosus by capillary electrophoresis and neutron activation analysis. Analytical and Bioanalytical Chemistry, 379, 849−852.
1.1.
2004
Ehala, S.; Kaljurand, M.; Kudrjashova, M.; Vaher, M (2004). Stroboscopic sampling in comprehensive high-performance liquid chromatography-capillary electrophoresis via a pneumatic sampler. Electrophoresis, 25, 980−989.
1.2.
2004
Ehala, Sille; Kaljurand, Mihkel; Vaher, Merike (2004). Separation of polyphenols and L-ascorbic acid and investigation of their antioxidant activity by capillary electrophoresis. Eesti Teaduste Akadeemia Toimetised. Keemia (21−35)..
1.2.
2004
Ehala, S.; Vaher, M.; Kaljurand, M. (2004). rSeparation of polyphenols and L-ascorbic acid and investigation of their antioxidant activity by capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 53 (1), 21−35.
1.2.
2004
Vaher, M.; Koel, M. (2004). Electrophoretic mobilities in nonaqueos capillary electrophoresis. Proceedings of the Estonian Academy of Sciences. Chemistry, 53 (1), 36−45.
1.2.
2004
Ebber, A.; Ehala, S.; Kudrjashova, M.; Kulp, M.; Vaher, M.; Kaljurand, M. (2004). Flow sampling in capillary electrophoresis with pneumatically driven computerized sampler. Proceedings of the Estonian Academy of Sciences. Chemistry, 53 (1), 6−20.
1.1.
2003
Kuldvee, R.; Vaher, M.; Koel, M.; Kaljurand, M (2003). Heteroconjugation-based capillary electrophoretic separation of phenolic compounds in acetonitrile and propylene carbonate. Electrophoresis, 24 (10), 1627−1634.
1.1.
2003
Vaher, M.; Koel, M (2003). Separation of polyphenolic compounds extracted from plant matrices using capillary electrophoresis. Journal of Chromatography A, 990, 225−230.
1.2.
2003
Truus, K.; Vaher, M. (2003). Research of algal polysaccharides and related natural compounds in Estonia. Proceedings of the Estonian Academy of Sciences. Chemistry, 52 (1), 20−37.
5.2.
2003
Vaher, Merike; Truus, Kalle; Koel, Mihkel; Pehk, Tõnis; Taure, Imants; Viitak, Anu (2003). Complex investigation of composition of the brown alga Fucus vesiculosus (The Baltic sea) by different instrumental methods. Instrumental Methods of Analysis modern Trends and Applications: Conference Proceedings, Thessaloniki, 2003: International Conference on Instrumental Methods of Analysis: Modern Trends and Applications, Thessaloniki, 2003. , 238−240.
1.1.
2002
Vaher, M.; Koel, M.; Kaljurand, M. (2002). Ionic Liquids as Electrolytes for Non-aqueous Capillary. Electrophoresis, 23 (3), 426−430.
1.1.
2002
Ebber, A.; Vaher, M.; Peterson, J.; Lopp, M (2002). Application of capillary zone electrophoresis to the separation and characterization of poly(amidoamine) dendrimers with an ethylenediamine core. Journal of Chromatography A, 949, 351−358.
1.1.
2002
Vaher, M.; Koel, M.; Kaljurand, M (2002). Application of 1-alkyl-3-methylimidazolium-based ionic liquids in non-aqueous capillary electrophoresis. Journal of Chromatography A, 979, 27−32.
2.3.
2002
Vaher, M. (2002). Room temperature ionic liquids as background electrolyte additives in capillary electrophoretic separations. (Doktoritöö, Tallinna Tehnikaülikool). Tallinn: Tallinn Technical University Press.
3.4.
2002
Sokolova, M.; Vaher, M.; Koel, M. (2002). Extraction of polyphenoles from plants with modified supercritical carbon dioxide. Proceedings of the 8th Meeting on Supercritical Fluids: 8th Meeting on Supercritical Fluids, Bordeaux, 2002. , 885−888.
1.1.
2001
Vaher, M.; Koel, M.; Kaljurand, M (2001). Non-aqueous capillary electrophoresis in acetonitrile using ionic-liquid buffer electrolytes. Chromatographia, 53, S302−S306.
1.2.
2001
Truus, Kalle;Vaher, Merike;Taure, Imants (2001). Algal biomass from fucus vesiculosus (phaeophyta): investigation of the mineral and alginate components. Proceedings of the Estonian Academy of Sciences. Chemistry, 50 (2), 95−103.
5.2.
2001
Aaviksaar, A.; Haga, M.; Hansen, M.; Kann, Jüri; Koel, Mihkel; Püssa, T.; Vaher, Merike (2001). Resveratrooli sisalduse uurimine Reynoutria japonica's = Study of resveratrol content in Reynoutria japonica. XXVII Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 27th Estonian Chemistry Days : abstracts of scientific conference. Tallinn: Tallinna Tehnikaülikooli Kirjastus, 15−15.
3.5.
2000
Vaher, M.;Truus, Kalle (2000). Potentsiaalsed toidulisaained Läänemere põisadrus : eraldamine ja spetsiifika. XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (152−153).. Tallinn : Eesti Keemia Selts,: /.../.
3.5.
2000
Vaher, M.;Truus, Kalle (2000). Potential food additives from Fucus vesiculosus isolation and spetsific character. XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (152−153).. Tallinn : Eesti Keemia Selts,: /.../.
3.5.
2000
Truus, Kalle;Vaher, M.;Subbi, J. (2000). Pruunvetikate Fucus vesiculosus alginaatide ekstraktsiooni ja fragmentatsiooni uurimine. XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (146−147).. Tallinn : Eesti Keemia Selts,: /.../.
3.5.
2000
Truus, Kalle;Vaher, M.;Subbi, J. (2000). A study of extraction and fragmentation processes of alginates from brown algae Fucus vesiculosus (the Baltic Sea, Estonia). XXVI Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 26th Estonian Chemistry Days : abstracts of scientific conference (lk. 146-147−0).. Tallinn : Eesti Keemia Selts,: /.../.
5.2.
1999
Vaher, Merike; Truus, Kalle; Menert, Anne; Pehk, Tõnis (1999). Colloid food additives from red and brown algae of the Baltic Sea : structure and rheology. Surface and Colloid Science: 1st Nordic-Baltic meeting. Vilnius: TTY puuduv kirjastus, 77−77.
5.2.
1999
Vaher, M.;Truus, K.; Menert, A.;Pehk, T. (1999). Colloid food additives from red and brown algae of the Baltic Sea: structure and rheology. Surface and Colloid Science : 1st Nordic-Baltic Meeting, Vilnius, 1999, 21.-25. Aug. : program and abstracts. Vilnius: /.../, 77.
1.2.
1998
Vaher, M.; Truus, K.; Taure, I.; Leito, I.; Lahe, L.; Kallavus, U.; Pehk, T. (1998). Composition and structure of summary polysaccharide from the red alga Furcellaria lumbricalis. Proceedings of the Estonian Academy of Sciences. Chemistry, 47 (2), 51−59.
5.2.
1998
Vaher, M.; Truus, K.; Ivask, Kaire; Kaljurand, Mihkel (1998). The Baltic brown alga Fucus vesiculosus as a potential raw material for alginate production. 24th Estonian Chemistry Days : abstracts of scientific conference. Tartu: Tallinna Tehnikaülikooli Kirjastus, 78−78.
1.1.
1997
Truus, K.; Vaher, M.; Usov, A.; Pehk, T.; Kollist, A. (1997). Gelling galactans from the algal community of Furcellaria lumbricalis and Coccotylus truncatus (the Baltic Sea, Estonia): a structure-property study. International Journal of Biological Macromolecules, 21, 89−96.
5.2.
1997
Vaher, M.; Truus, K.; Sarapuu, M.; Pehk, T.; Kukk, H.; Kollist, A. (1997). Industrial exploitation of the algal stratum from Kassari Bay (The Baltic Sea, Estonia). Abstracts of Scientific Conference: 23rd Estonian Chemistry Days. Tallinna Tehnikaülikool, 158.
1.2.
1996
Truus, K.; Vaher, M.; Kukk, H.; Pehk, T.; Kollist, A. (1996). Läänemere punavetikate geelistuvad galaktaanid. Proceedings of the Estonian Academy of Sciences. Chemistry, 45, 15−29.
1.2.
1993
Truus, K.; Taure, I.; Eglite, G.; Limberg, M.; Ivask, K.; Vaher, M. (1993). Micro- and trace elements content of commercial agaroses and their raw material. Proceedings of the Estonian Academy of Sciences. Chemistry, 42 (2), 87−96.
1.2.
1993
Vaher, M.; Koljak, R.; Truus, K. (1993). Activation of agarose matrix with 1,1'-carbonyldiimidazole in various conditions. Proceedings of the Estonian Academy of Sciences. Chemistry, 42 (2), 104−106.
1.2.
1989
Kollist, A. P.; Vaher, M. E.; Truus, K. E.; Paris, J. P.; Püssa, T. O. (1989). Characterization and utilization of polysaccharides isolated from agar-containing algae. S. Miyachi, I. Karube, Y. Ishida. Current Topics in Marine Biotechnology (245−248). . Tokyo: The Japanese Society for Marine Biotechnology.
1.2.
1988
Truus, K.; Välimäe, T.; Vaher, M.; Kollist, A. (1988). Characterization and utilization of polysaccharides isolated from agar-containing algae. 9. C-NMR spectroscopy of agarose carriers. Eesti NSV Teaduste Akadeemia toimetised. Keemia, 37 (3), 190−194.
1.2.
1982
Kollist, A.; Pussa, T.; Vaher, M. (1982). Isolation, characterization, and use of polysaccharides from agar-containing algae. 7. Study of the dependence of the gelling ability of polygalactans on their physicochemical properties. Eesti NSV Teaduste Akadeemia toimetised. Keemia, 31 (1), 63−71.
1.1.
1980
Horak, M.; Tuulmets, A.; Vaher, M.; Vija, S. (1980). Solvent effects on the reaction-kinetics of dialkylmagnesium with epexides. Organic Reactivity, 17 (2), 215−232.
1.2.
1980
Kollist, A.; Vaher, M.; Paris, J.; Püssa, T. (1980). Characterization and utilization of polysaccharides isolated from agar-containing algae. 4. The effect of concentration, determining temperature and storage time on the gel strength of some agars. Eesti NSV Teaduste Akadeemia toimetised. Keemia, 29, 210−214.

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16.06.2021