微机化油/水界面四电极恒流电分析仪的研制  

Design of a Microcomputerized Galvanostat With Four-electrode

作　　者：余拔章 李培标[1] 赵藻藩 

机构地区：[1]武汉大学化学系,汉武430072

出　　处：《分析化学》1992年第3期363-367,共5页Chinese Journal of Analytical Chemistry

基　　金：国家教委博士基金

摘　　要：借助于APPLE(Ⅱ)、AD-DA转换卡和简单的电子线路,设计了适用于油/水界面电化学研究的四电极微机化恒流仪;编制了换向阶跃及线性扫描计时电位法相应的电流发生、数据采集和数据处理软件;发现采取逐渐通过的程序抵消方式,可以准确地校正I-E曲线的欧姆电势降影响。A four-electrode microcomputerized galvanostat composed of an APPLE I, a 12-bit AD-DA transfer card and electronic circuits was described. The softwares of the current reversal chronopotentiometry and the linear current scanning chronopotentiometry (LCSC) were designed in BASIC and 6502 Assembly Languages. The obtained data are smoothed by mathematical modes and differential analysis. The Ohmic potential drop can be eliminated well by a suitable software in LCSC. The instrument has been examined with the transfer of TBA^+, TMA^+, etc. ions across the interface of 1,2-dichloroethane/water.

关 键 词：液/液界面 恒流电分析仪 微机 

分 类 号：O657.12[理学—分析化学]