化学学报 ›› 1992, Vol. 50 ›› Issue (9): 888-894. 上一篇    下一篇

研究论文

超微盘电极上双电位阶跃计时电流和计时库仑法理论及验证

于俊生;张祖训   

  1. 南京大学化学系
  • 发布日期:1992-09-15

The theory and experimental verification of double potential-step chronoamperometry and chronocoulometry at ultramicrodisk electrodes

YU ZUNSHENG;ZHANG ZUXUN   

  • Published:1992-09-15

本文报道超微盘电极上双电位阶跃计时电流和计时库仑法理论,用自制的微机多功能电分析仪及亚铁氰化钾、氯化钾体系进行验证,实验结果与理论相符合.

关键词: 氯化钾, 微电极, 计时库仑法, 超微盘电极, 双电位阶跃, 计时电流法, 氩铁氰化钾

Theor. relations for the chronoamperometric and chronocoulometric response to a double-potential step for a simple electrode reaction at an ultramicrodisk electrode are presented. The experimental investigation employs the oxidation of K4Fe(CN)6 in the presence of KCl at Pt ultramicrodisk electrode with radius 10 mm, and the general-purpose microcomputer-based instrumentation used in this work was made in the authors' laboratory The experimental results agreed with the theory.

Key words: POTASSIUM CHLORIDE, MICROELECTRODE, CHRONOCOULOMETRY

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