示波库仑滴定

OSCILLOGRAPHIC COULOMETRIC TITRATION

示波滴定的理论和实际应用近几年来发展较快,但过去的工作多限于常量分析。库仑滴定可获得较高的准确度和灵敏度,但常常因缺乏简便、灵敏的终点指示方法而使其应用范围受到限制。若将这两种方法结合起来,则既可弥补库仑滴定法的不足使滴定终点变得简单直观,又可使示波技术用于痕量分析。

A novel electrometric titration method - oscillographic coulometric titration is pro-posed,in which the oscillographic indication technique developed previously by one of theauthors of this paper is used to indicate the end point of titration. Some examples oftitration in redox system are given and briefly discussed.The results show that this methodhas the advantages of direct visual end point, simple manipulation and high sensitivity.