A study on Stripping Voltammetric Determination of Ag(I) by Poly(3-methylthiophene) Conducting Polymer Film Electrode Containing 18-crown-6

Lee, Ihn Chong; 이인종; Sohn, Jeong-In; 손정인; Kim, Kuk Gin; 김국진

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.7, No.2

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A study on Stripping Voltammetric Determination of Ag(I) by Poly(3-methylthiophene) Conducting Polymer Film Electrode Containing 18-crown-6

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

1994, v.7 no.2, pp.181-186

Lee, Ihn Chong
Sohn, Jeong-In
Kim, Kuk Gin

Lee, I. C., Sohn, J., & Kim, K. G. (1994). A study on Stripping Voltammetric Determination of Ag(I) by Poly(3-methylthiophene) Conducting Polymer Film Electrode Containing 18-crown-6. , 7(2), 181-186.

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Abstract

Using poly(3-methylthiophene) conducting polymer film electrodes, feasiblity for Ag determination by stripping voltammetry has been studied. Ag ions accumulated by complexation with 18-crown-6, which are existing on the surface of the polymer film electrode, migrate inside of polymer film through potential scanning within limited potential range, and then are reduced and oxidized on the glassy carbon substrate. Therefore, the polymer film must have proper thickness and porosity for easy penetration of Ag ions. On the basis of these experimental results, $5.0{\times}10^{-6}M$ Ag(I) in aqueous solution could be determined.