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

18-crown-6을 포함하는 poly(3-methylthiophene) 전도성 고분자 막전극에 의한 Ag(I)의 벗김 전압-전류법적 정량에 관한 연구

  • Received : 1994.03.24
  • Published : 1994.06.25

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.

Keywords

Poly(3-methylthiophene) conducting polymer film;stripping voltammetry;Ag(I) analysis;18-crown-6