食品科学 ›› 2002, Vol. 23 ›› Issue (6): 115-117.

• 分析检测 • 上一篇    下一篇

钙离子选择性电极的研制

 刘宗林, 彭义交, 郭洋   

  1. 北京市食品研究所
  • 出版日期:2002-06-15 发布日期:2012-02-13

The Study and Production of Calciumi on Selectivity Electrode

 LIU  Zong-Lin, PENG  Yi-Jiao, GUO  Yang   

  • Online:2002-06-15 Published:2012-02-13

摘要: 钙离子选择性电极是以P.V.C为电极膜,磷酸酯类的钙盐为电活性物质研制而成,对电极性能进行测试,其检出下限为10-5mol/L,对一价和二价金属离子选择性系数小于0.1,是一种较为方便快捷的检测工具。

关键词: 钙离子电极, 电动势, 选择性系数

Abstract: The electrode is instrumented by p.v.c as membrane and the phosphate as ac tive.We have tested the electrode natural capacity,the pre scribed minimumis 10 -5 mol /Land the selectivity coefficie nt to the monovalent and bivalent melationis lower than0.1.It is a kind of the convenient andspee dy determination tool.

Key words: Calciumion electrode , Electromotive force , Selectivity coefficient