Increased sensitivity to cations of novocaine and lidocaine in aqueous solutions using perfluorinated sulfocation-exchange membrane MF-4SK, Nafion modified zirconia

Authors

  • Kristina Yu. Jankina the post graduate student of analytical chemistry department of chemical faculty, Voronezh state university, Voronezh
  • Olga V. Bobreshova d.c.s., the professor of analytical chemistry department of chemical faculty, Voronezh state university, Voronezh
  • Svetlana A. Putinceva the under graduate student of analytical chemistry department of chemical faculty, Voronezh state university, Voronezh

Keywords:

Donnan potential, potentiometric sensor, medical substances, perfluorinated sulfocation-exchange membranes modified with zirconia.

Abstract

The effect of the modification membranes MF-4SK, Nafion in Н+ -, K+-type to determine cations
NovH+, LidH+ in aqueous solution at pH <5,9. The analytical signal of PD-sensors is the Donnan
potential at the ion-exchange polymer/electrolyte test solution interface. It was shown, that sensitivity
of PD-sensor based on membranes MF-4SK, Nafion with gradient zirconia distribution to cations NovH+,
LidH+ increased significantly in comparison with unmodified membranes MF-4SK, Nafion. Potential
determining reactions are ion exchange reaction and protolysis with two sorption centers. ZrO2 particles
in modified membranes give evidence of both cation- and anion-exchange properties.

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Published

2019-11-20

Issue

Vol. 13 No. 1 (2013): Sorbtsionnye i Khromatograficheskie Protsessy

Section

Статьи

How to Cite

Increased sensitivity to cations of novocaine and lidocaine in aqueous solutions using perfluorinated sulfocation-exchange membrane MF-4SK, Nafion modified zirconia. (2019). Sorbtsionnye I Khromatograficheskie Protsessy, 13(1). https://journals.vsu.ru/sorpchrom/article/view/1602

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