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  

The Theory and Experimental Verification of Double Potential-Step Chronoamperometry and Chronocoulometry at Ultramicrodisk Electrodes

作　　者：于俊生[1] 张祖训[1] 

机构地区：[1]南京大学化学系,南京210008

出　　处：《化学学报》1992年第9期888-894,共7页Acta Chimica Sinica

基　　金：高等学校博士学科点专项科研基金

摘　　要：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.This paper presents the theoretical relations for the chronoamperometric and Chronocoulometric response to a double potential step for a simple electrode reaction at an ultramicrodisk electrode. The experimental investigation employs the oxidation of K_4Fe(CN)_6 in the presence of KCI at platinum ultramicrodisk electrode with radius 10μm, and a general purpose microcomputer-based instrumentation used in this work was made in our laboratory by ourselves. The experimental results were found to agree with the theory.

关 键 词：计时电流法 计时库仑法 理论 

分 类 号：O657.1[理学—分析化学]