Potentiometric Cross-Sensitive Sensors Based on Perfluorinated Membranes Treated at Different Relative Humidity for Codetermination of Cations and Anions in Alkaline Solutions of Amino Acids
- Authors: Parshina A.V.1, Safronova E.Y.2, Titova T.S.1, Safronov D.V.1, Lysova A.A.1, Bobreshova O.V.1, Yaroslavtsev A.B.2
- 
							Affiliations: 
							- Department of Analytical Chemistry
- Kurnakov Institute of General and Inorganic Chemistry
 
- Issue: Vol 53, No 11 (2017)
- Pages: 1294-1299
- Section: Short Communications
- URL: https://journals.rcsi.science/1023-1935/article/view/189138
- DOI: https://doi.org/10.1134/S1023193517110118
- ID: 189138
Cite item
Abstract
The results of studying characteristics of potentiometric DP-sensors (sensors with the Donnan potential as their analytical signal) are presented for alkaline solutions of a sulfur-containing amino acid with perfluorosulfonic cation exchange membranes subjected to thermal treatment and mechanical deformation at different relative humidity. Correlation between the distribution of sensitivity of DP-sensors towards cations and anions and diffusion permeability of membranes was found. A multisensor system including two DP-sensors based on membranes with optimized properties and a glass electrode for codetermination of potassium cations and amino acid anions and zwitterions in solutions at pH >7 are developed.
About the authors
A. V. Parshina
Department of Analytical Chemistry
														Email: bobreshova@chem.vsu.ru
				                					                																			                												                	Russian Federation, 							Universitetskaya pl. 1, Voronezh, 394006						
E. Yu. Safronova
Kurnakov Institute of General and Inorganic Chemistry
														Email: bobreshova@chem.vsu.ru
				                					                																			                												                	Russian Federation, 							Leninskii pr. 31, Moscow, 119991						
T. S. Titova
Department of Analytical Chemistry
														Email: bobreshova@chem.vsu.ru
				                					                																			                												                	Russian Federation, 							Universitetskaya pl. 1, Voronezh, 394006						
D. V. Safronov
Department of Analytical Chemistry
														Email: bobreshova@chem.vsu.ru
				                					                																			                												                	Russian Federation, 							Universitetskaya pl. 1, Voronezh, 394006						
A. A. Lysova
Department of Analytical Chemistry
														Email: bobreshova@chem.vsu.ru
				                					                																			                												                	Russian Federation, 							Universitetskaya pl. 1, Voronezh, 394006						
O. V. Bobreshova
Department of Analytical Chemistry
							Author for correspondence.
							Email: bobreshova@chem.vsu.ru
				                					                																			                												                	Russian Federation, 							Universitetskaya pl. 1, Voronezh, 394006						
A. B. Yaroslavtsev
Kurnakov Institute of General and Inorganic Chemistry
														Email: bobreshova@chem.vsu.ru
				                					                																			                												                	Russian Federation, 							Leninskii pr. 31, Moscow, 119991						
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