应用化学 ›› 1990, Vol. 0 ›› Issue (6): 74-76.

• 研究简报 • 上一篇    下一篇

示波库仑滴定

徐伟建, 林敏, 高鸿   

  1. 南京大学化学系 南京 210008
  • 收稿日期:1989-12-08 修回日期:1990-03-23 出版日期:1990-12-10 发布日期:1990-12-10
  • 基金资助:
    国家自然科学基金

OSCILLOGRAPHIC COULOMETRIC TITRATION

Xu Weijian, Lin Min, Gao Hong   

  1. Department of Chemistry, Namjing University, Nanjing 210008
  • Received:1989-12-08 Revised:1990-03-23 Published:1990-12-10 Online:1990-12-10

摘要: 示波滴定的理论和实际应用近几年来发展较快[1],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[2]。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。本文报道两铂电极示波电位滴定终点指示技术[3,4]在氧化还原库仑滴定法中的应用。

关键词: 示波库仑滴定, 示波滴定, 库仑滴定

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

Key words: oscillographic coulometric titration, oscillographic titration, coulometric titration