Determination of sulfur-containing anions in alkaline solutions using arrays of DP-sensors based on hybrid perfluorinated membranes with proton-donor dopants
- Authors: Parshina A.V.1, Denisova T.S.1, Safronova E.Y.2, Karavanova Y.A.2, Safronov D.V.1, Bobreshova O.V.1, Yaroslavtsev A.B.2
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Affiliations:
- Voronezh State University
- Kurnakov Institute of General and Inorganic Chemistry
- Issue: Vol 72, No 12 (2017)
- Pages: 1243-1250
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182693
- DOI: https://doi.org/10.1134/S1061934817120097
- ID: 182693
Cite item
Abstract
The influence of proton-donor properties and concentration of dopant nanoparticles introduced into Nafion and MF-4SС perfluorosulfonic cation-exchange membranes on the characteristics of cross-sensitive DP-sensors (sensors whose analytical signal is the Donnan potential) in alkaline solutions of sulfur-containing organic compounds were studied. The dopants were acid salts of heteropoly acids (HPAs) and hydrated silica SiO2 and zirconia ZrO2 surface-modified with sulfur-containing groups and an acid HPA salt. A correlation was revealed between the DP-sensor sensitivity to anions (and zwitter-ions) in alkaline solutions, size and proton-donor ability of the added particles, and diffusion permeability of hybrid membranes. Optimum compositions of membranes for arrays of cross-sensitive DP-sensors ensuring the simultaneous determination of cations and anions (and zwitter-ions) in the test solutions with an error of less than 18% were selected.
About the authors
A. V. Parshina
Voronezh State University
Author for correspondence.
Email: parshina_ann@mail.ru
Russian Federation, Voronezh, 394006
T. S. Denisova
Voronezh State University
Email: parshina_ann@mail.ru
Russian Federation, Voronezh, 394006
E. Yu. Safronova
Kurnakov Institute of General and Inorganic Chemistry
Email: parshina_ann@mail.ru
Russian Federation, Moscow, 119991
Yu. A. Karavanova
Kurnakov Institute of General and Inorganic Chemistry
Email: parshina_ann@mail.ru
Russian Federation, Moscow, 119991
D. V. Safronov
Voronezh State University
Email: parshina_ann@mail.ru
Russian Federation, Voronezh, 394006
O. V. Bobreshova
Voronezh State University
Email: parshina_ann@mail.ru
Russian Federation, Voronezh, 394006
A. B. Yaroslavtsev
Kurnakov Institute of General and Inorganic Chemistry
Email: parshina_ann@mail.ru
Russian Federation, Moscow, 119991