Voltammetric determination of perchlorate ion at a liquid–liquid microscopic interface
- Authors: Martynov L.Y.1, Mel’nikov A.P.1, Astaf’ev A.A.2, Zaitsev N.K.1
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Affiliations:
- Moscow Technological University
- Semenov Institute of Chemical Physics
- Issue: Vol 72, No 9 (2017)
- Pages: 992-998
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182626
- DOI: https://doi.org/10.1134/S1061934817090052
- ID: 182626
Cite item
Abstract
A method is proposed for the electrochemical determination of perchlorate ion by voltammetry at the interface between two immiscible phases (water–o-nitrophenyl octyl ether). A demountable original-design amperometric ion-selective electrode based on a laser-microperforated polymeric membrane was fabricated for voltammetric measurements. The conditions of analytical signal recording in the determination of ClO4− were determined. The effect of interfering ions was assessed and amperometric selectivity coefficients were calculated. The accuracy of the procedure was verified by the added–found method. The developed electrode was applied to the determination of perchlorate in natural and drinking waters.
About the authors
L. Yu. Martynov
Moscow Technological University
Author for correspondence.
Email: martynov_leonid@mail.ru
Russian Federation, Moscow, 119571
A. P. Mel’nikov
Moscow Technological University
Email: martynov_leonid@mail.ru
Russian Federation, Moscow, 119571
A. A. Astaf’ev
Semenov Institute of Chemical Physics
Email: martynov_leonid@mail.ru
Russian Federation, Moscow, 119334
N. K. Zaitsev
Moscow Technological University
Email: martynov_leonid@mail.ru
Russian Federation, Moscow, 119571