Novel potentiometric sensors for joint definition of organic and inorganic electrolits in the water solutions based on their equilibrium sorption by ion-exchange

  • Olga V. Bobreshova d.ch.sc. professor of analytical chemistry department, Voronezh state university, Voronezh, е-mail: olga1@box.vsi.ru
  • Anna V. Parshina the post graduate student of analytical chemistry department,Voronezh state university, Voronezh
  • Elena A. Ryshkova the under graduate student of analytical chemistry department, Voronezh state university, Voronezh
  • Irina Yu. Piygova the bachelor of analytical chemistry department, Voronezh state university.
  • Ylia V. Pozhidaeva the student of analytical chemistry department, Voronezh state university, Voronezh
Keywords: Donnan potential, sorption, potentiometric sensor array, ion-exchange polymer, vitamins, aminoasides.

Abstract

Main principles of use of novel potentiometric sensors, which response is the Donnan potential,
are presented for joint determination of organic and inorganic electrolytes in multicomponent solutions.
Sensor systems are developed for the analysis of solutions of lysine monohydrochloride and tiamine
chloride with salts of alkaline and alkali-earth metals, and mixed solutions of pyridoxine hydrochloride
and nicotinic acid, and also solutions of neutral amino acids over the рН range 1,23-3,42. The
characteristics of the sensor array for the determination of tiamin, potassium and sodium were as follows:
the repeatability was ≤10%, the response time was 5-7 min

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References

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Published
2019-11-27
How to Cite
Bobreshova, O. V., Parshina, A. V., Ryshkova, E. A., Piygova, I. Y., & Pozhidaeva, Y. V. (2019). Novel potentiometric sensors for joint definition of organic and inorganic electrolits in the water solutions based on their equilibrium sorption by ion-exchange. Sorbtsionnye I Khromatograficheskie Protsessy, 10(4). Retrieved from https://journals.vsu.ru/sorpchrom/article/view/2091