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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,
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. Analytical Science and Technology, 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, <TEX>$5.0{\times}10^{-6}M$</TEX> Ag(I) in aqueous solution could be determined.
- keywords
- Poly(3-methylthiophene) conducting polymer film, stripping voltammetry, Ag(I) analysis, 18-crown-6
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