铜离子选择性电极作为络合滴定的终点检测器—用CU(Ⅱ)-EDTA为指标剂

Copper(Ⅱ)-Selective Electrode as End-point Detector in Complexometric Titrations-with Cu(Ⅱ) -EDTA as Indicator

研究了采用铜离子选择性电极和Ｃｕ（Ⅱ）－ＥＤＴＡ指示剂来确定络合物滴淀终点，提出了表示指示剂极限浓度的公式和预计电位突跃范围的方法．

The method or complexometric titractions by using Cu(Ⅱ) ion-selective electrode and Cu(Ⅱ)-EDTA indicator for detecting end-point is studied.Equations showing minimum concentration or indicator are given and the method of estimating the range of potential ab- rupt change is suggested.