AMPEROMETRIC RESPONSE OF CIRCULAR SOLID ELECTRODES IN THIN-LAYER FLOW CHANNELS

被引:10
作者
OU, TY [1 ]
ANDERSON, JL [1 ]
机构
[1] UNIV GEORGIA, DEPT CHEM, ATHENS, GA 30602 USA
关键词
D O I
10.1016/0022-0728(91)85028-N
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The amperometric responses are investigated theoretically and experimentally for an electrode with circular geometry on one wall of a thin-layer channel under both steady-state flow conditions and liquid chromatographic conditions. A solid electrode is treated under conditions of negligible diffusion in the plane of flow. The response of this electrode is predicted to be 84.13% of that for a square solid electrode of the same length and width under steady-state conditions, and experimentally confirmed. The current response model for a solid electrode under liquid chromatographic conditions derived by Prabhu and Anderson is modified to allow convenient, rapid analysis. Liquid chromatographic experiments allow facile prediction of the steady-state response and vice versa. The theoretical predictions of current agree well with experimental results.
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页码:1 / 12
页数:12
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