Voltammetric determination of perchlorate ion at a liquid–liquid microscopic interface
- Autores: Martynov L.1, Mel’nikov A.1, Astaf’ev A.2, Zaitsev N.1
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Afiliações:
- Moscow Technological University
- Semenov Institute of Chemical Physics
- Edição: Volume 72, Nº 9 (2017)
- Páginas: 992-998
- Seção: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182626
- DOI: https://doi.org/10.1134/S1061934817090052
- ID: 182626
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Resumo
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.
Sobre autores
L. Martynov
Moscow Technological University
Autor responsável pela correspondência
Email: martynov_leonid@mail.ru
Rússia, Moscow, 119571
A. Mel’nikov
Moscow Technological University
Email: martynov_leonid@mail.ru
Rússia, Moscow, 119571
A. Astaf’ev
Semenov Institute of Chemical Physics
Email: martynov_leonid@mail.ru
Rússia, Moscow, 119334
N. Zaitsev
Moscow Technological University
Email: martynov_leonid@mail.ru
Rússia, Moscow, 119571