高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 91.

• Electroanalytical Chemistry • 上一篇    下一篇

A Graphite Coated Membrane Electrode in Drug Analysis

GUO Yong-Li   

  1. Yunnan Institute for Drug Control, Kunming, 650011, P. R. China
  • 出版日期:1999-12-31 发布日期:1999-12-31

A Graphite Coated Membrane Electrode in Drug Analysis

GUO Yong-Li   

  1. Yunnan Institute for Drug Control, Kunming, 650011, P. R. China
  • Online:1999-12-31 Published:1999-12-31

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摘要：

This paper describes the preparation of a graphite electrode coated with membrane containing the dibutyl phthalate (or dioctyl phtalate) as the plasticizer and poly (vinyl chloride) as the polymer matrix.The test has shown this coated membrane graphite electrode can be used as a indicator electrode in potentionmetry titration.lt is accurate, precise and sharp end-point jump when titrate drugs with sodium tetraphenbor. This method is more simple and convenient and rapid than the pharmacopoeia method.

Abstract:

This paper describes the preparation of a graphite electrode coated with membrane containing the dibutyl phthalate (or dioctyl phtalate) as the plasticizer and poly (vinyl chloride) as the polymer matrix.The test has shown this coated membrane graphite electrode can be used as a indicator electrode in potentionmetry titration.lt is accurate, precise and sharp end-point jump when titrate drugs with sodium tetraphenbor. This method is more simple and convenient and rapid than the pharmacopoeia method.

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