The influence of zirconium oxide (IV) on the sensitivity of PD-sensors based on perfluorinated membranes to glycine, alanine and leucine anions in alkaline solutions

Authors

  • Anna V. Parshina Ph. D., Department of Analytical Chemistry of Chemical Faculty of Voronezh State University, Voronezh, е-mail: parshina_ann@mail.ru
  • Olga V. Bobreshova Dr. Sc. Chem., Professor, Department of Analytical Chemistry of Chemical Faculty of Voronezh State University, Voronezh
  • Tatyana S. Titova Graduate student, Department of Analytical Chemistry of Chemical Faculty of Voronezh State University, Voronezh

Keywords:

PD-sensor, perfluorinated sulfocation-exchange membranes, oxide zirconia (IV), multiionic solutions, amino acids.

Abstract

The influence of the concentration of zirconium oxide (IV) in gradient modified perfluorinated
sulfonated cation-exchange membranes Nafion and MF-4SC on sensitivity of the PD-sensors to cations and
anions in alkaline solutions of glycine, α-, β-alanine and leucine was investigated. The increase of sensitivity
of PD-sensors to amino acids anions conditioned by increase of the electrochemical potential difference of
anions between the external solution and membrane pores, containing nanoparticle of dopant. Samples of the
membranes which provide the highest sensitivity of the PD-sensors to anions of Gly-, α-Ala-, β-Ala- and Leuat
pH> 7 were chosen.

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Published

2019-11-19

Issue

Vol. 14 No. 3 (2014): Sorbtsionnye i Khromatograficheskie Protsessy

Section

Статьи

How to Cite

The influence of zirconium oxide (IV) on the sensitivity of PD-sensors based on perfluorinated membranes to glycine, alanine and leucine anions in alkaline solutions. (2019). Sorbtsionnye I Khromatograficheskie Protsessy, 14(3). https://journals.vsu.ru/sorpchrom/article/view/1499

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