非配偶型铂电极上的电位滴定

配偶型铂电极上的电位滴定是Nernst型滴定,其“电极/溶液”界面上总有一对决定电位的电对。非配偶型电极的界面上不存在明显的电对,通常终点很难判断。本文采用示波器代替电位测量仪指示电位变化。由于荧光点的移动十分迅速又无惯性,所以在滴定终点时能敏锐地反映瞬时电位峰,指示终点,使一大类原来不能进行的滴定得以进行。

Potential Titration on Uncoupled Platinum Electrode

In this paper , it is shown that the potential titration was carried out on a uncoupled platinum electrode. The platinum eletcrode used as an indication electrode, must should be treated with abasic solution. The change of E-t curves on the end-point was given in the form of peak-shape and could be observed on the oscillograph. This methed was applied to complexometric , precipitating and neutralizing titrations. The accurate results obtained will be significant for the theoretical reseach.