"Euroopa Komisjoni programm" projekt MLTKT18251
MLTKT18251 (JRP-f09) "Unified pH Scale (EMPIR) (1.05.2018−30.04.2021)", Ivo Leito, Tartu Ülikool, Loodus- ja täppisteaduste valdkond, keemia instituut.
JRP-f09
MLTKT18251
Unified pH Scale (EMPIR)
Unified pH Scale (EMPIR)
UnipHied
1.05.2018
30.04.2021
Teadus- ja arendusprojekt
Euroopa Komisjoni programm
ValdkondAlamvaldkondCERCS erialaFrascati Manual’i erialaProtsent
4. Loodusteadused ja tehnika4.11. Keemia ja keemiatehnikaP300 Analüütiline keemia 1.4 Keemiateadused100,0
AsutusRiikTüüp
Euroopa Komisjon
PerioodSumma
01.05.2018−30.04.2021254 332,50 EUR
254 332,50 EUR

Projekti fookuses on uudse pHabs skaala viimine praktikasse, mille jaoks tehakse järgnevat: 1. Arendatakse välja ja valideeritakse usaldusväärne pHabs väärtuste mõõtemetoodika; 2. Arendatakse välja meetod vedelik-vedelik piirpinna potentsiaalihüppe mõõtmiseks või hindamiseks; 3. Luuakse koherentne kalibeerimisstandardite süsteem; 4. Luuakse mõõtemääramatuse hindamise võimalus pHabs väärtuste jaoks; 5. Projekti tulemustelöe toetudes täiendatakse bioetanooli kvaliteedinõudeid vastavalt standardile EN 15490.
To date, it is impossible to compare pH values of solutions made in different solvents. This situation is untenable, since it causes confusion and inaccuracies into many fields, extending far beyond the specific field of acid-base chemistry, to almost all spheres of life. The purpose of this project is to overcome this situation by putting the new theoretical concept of the unified pHabs scale on a metrologically well-founded basis into practice. The five major objectives laid out for this project are: 1. To develop and validate a reliable and universally applicable measurement procedure that enables the measurement of pHabs (expressed relative to the aqueous scale, as 〖"pH" 〗_"abs" ^("H" _"2" "O" )-values) in non-aqueous and mixed solvents, colloids, etc., thereby enabling their acidities to be compared to the conventional aqueous pH scale. 2. To create a reliable method for the experimental or computational evaluation of the liquid junction potential between aqueous and non-aqueous solutions, allowing correction of results from, for example, a glass electrode pH measurement setup calibrated with aqueous standards, used to measure non-aqueous samples. 3. To develop a coherent and validated suite of calibration standards for standardizing routine measurement systems in terms of pHabs values for a variety of widespread systems (e.g., industrial mixtures, soils/waters, food products, biomaterials). 4. To estimate the measurement uncertainty budget for generalised pHabs measurements. 5. Based on the outcome of the project, to contribute to the international specifications for bioethanol quality EN 15490 (e.g., by assigning values to existing certified reference materials) and other relevant standards development organisations, and disseminate findings to the European measurement infrastructure.
TegevusProtsent
Alusuuring70,0
Rakendusuuring30,0
AsutusRollRiikTüüpKommentaar
ANBSensorspartnerSuurbritannia ja Põhja-Iiri Ühendkuningriik
Associação para a Investigação e Desenvolvimento de Ciências, Universidade de LisboapartnerPortugali Vabariikülikool
Czech Metrology InstitutepartnerTšehhi Vabariik
Danish Fundamental MetrologypartnerTaani Kuningriik
Instituto Português da QualidadepartnerPortugali Vabariik
Laboratoire National de Métrologie et d'EssaiskoordinaatorPrantsuse Vabariik
Metrological and Technical Supervisory Department of the Government Office of the Capital City BudapestpartnerUngari Vabariik
Physikalisch-Technische BundesanstaltpartnerSaksamaa Liitvabariik
The Albert-Ludwigs-UniversitätpartnerSaksamaa Liitvabariikülikool
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu – Ulusal Metroloji EnstitüsüpartnerTürgi Vabariik