The Cation Exchange Eastman-AQ Polymer Film Modified Carbon Fiber Electrode and Voltammetric Behavior

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (7): 922.

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The Cation Exchange Eastman-AQ Polymer Film Modified Carbon Fiber Electrode and Voltammetric Behavior

TIAN Min, DONG Shao-Jun

Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022

Received:1992-11-17 Revised:1993-03-28 Online:1993-07-24 Published:1993-07-24

Abstract

Abstract: Acarbon fiber electrode modified with Eastman-AQpolymer film was successfully prepared, effects of some experimental parameters were assessed.The behavior of (Ru(NH₃)₆³⁺ and MV²⁺(methyl viologen) were investigated by cyclic voltammetry.AQ-55Dmodified microelectrode possesses high stability, selectivity and sensitivity, the linear ranges of Ru(NH₃)₆³⁺ and MV²⁺ are 1.2 ×10^-6- 1.2×10^-5 mol/Land 1.7×10^-6-1.4×10^-5 mol/L, and the correlation coefficients are 0.999 and 0.998, respectively.Diffusion coefficients of some ions in the film were determined by chronoamperometry at AQcoating microdisk electrode.

Key words: Microelectrode, Modif ied-electrode, Polymer-AQ, Ion-exchange voltammetry

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TIAN Min, DONG Shao-Jun. The Cation Exchange Eastman-AQ Polymer Film Modified Carbon Fiber Electrode and Voltammetric Behavior[J]. Chem. J. Chinese Universities, 1993, 14(7): 922.

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The Cation Exchange Eastman-AQ Polymer Film Modified Carbon Fiber Electrode and Voltammetric Behavior

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