Antilg i_1-E曲线上的示波伏安滴定法

Oscillographic Voltammetric Titration on Anti lgt_f-E Curves

i_1-E曲线示波伏安滴定法是一种新的灵敏、准确的滴定分析方法。为进一步提高滴定终点指示的灵敏度,本文在产生i_1-E曲线的线路中,增加了正反馈电路和反对数电路,并提出了Antilg i_1-E曲线上的示波伏安滴定法。用EDTA或EGTA滴定了Ga^(3+)、Cd^(2+)、Zn^(2+)、Ni^(2+)、Co^(2+)等离子,并测定了铜锰合金中的锰,效果较好。

A new method known as oscillographic voltammetric titration on Anti lgif-E curves is presented , and circuit of oscillographic voltammetric titration was improved by this method. In this way, Ga3+, Cd2+, Zn2+, Ni2+, Co2+ were directly titrated with EDTA or EGTA. The experiment results show that the sensibility and accuracy of this method are better than those of oscillographic voltammetric titration on if-E curves.