Amperometric detection of electroinactive anions using conducting polymer electrodes subsequent to chromatographic separation

被引:24
作者
Barisci, JN [1 ]
Wallace, GG [1 ]
Clarke, A [1 ]
机构
[1] DIONEX CHEM CORP,SUNNYVALE,CA 94088
关键词
amperometric detection of electroinactive anions; chloride-containing polypyrrole electrode; ion chromatography;
D O I
10.1002/elan.1140090606
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The use of a chloride-containing polypyrrole electrode for the amperometric detection of electroinactive anions subsequent to separation by ion chromatography in suppressed, low conductivity eluent is described. It is demonstrated that changes in selectivity can be obtained by the application of different potential waveforms and current sampling protocols. The approach described is based on the anion dependence of the oxidation/reduction kinetics of the conducting polymer film induced by the applied potential.
引用
收藏
页码:461 / 467
页数:7
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