摘要
一个用溴代邻苯三酚红（BPR）修饰的碳糊电极是被试制并且以它为工作电极对痕量锑进行选择性地预浓缩。电活性配合物的组成是被测定为Sb（Ⅲ）：BPR=1：1。电极过程的反应机理被详细研究。所研究的方法已成功运用于测定锌电解液中痕量锑，测定下限为2.0×10^-8mol·L^-1Sb（Ⅲ），其结果是令人满意。
A bromopyrogallol red （BPR）modified carbon paste electrode was trial-produced and applied as working electrode for the selective preconcentration of trace antimony（Ⅲ）.The composition of electrodeactivated complex is Sb：BPR=1：1.The mechanism of electrode process was studied in detail.This method has been successfully applied to the determination of trace antimony （Ⅲ） in Zinc electrolytic solution with satisfactory results.The detection limit is 2.0×10^-8mol·L^-1.
关键词
碳糊电极
试制
锑
测定
锌电解液
carbon paste electrode
trial production
antimony
determination
zinc electrolytic solution
