高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (1): 85.

• 研究简报 • 上一篇    下一篇

利用汞(Ⅱ)-四(4-三甲铵苯基)卟啉的显色反应间接分光光度法测定微量硫化物

潘祖亭, 徐勉懿, 陈婉华   

  1. 武汉大学化学系
  • 收稿日期:1986-07-10 出版日期:1988-01-24 发布日期:1988-01-24
  • 基金资助:

    中国科学院科学基金

Indirect Spectrophotometric Determination of Trace Sulfide With Mercury(Ⅱ)-Tetrakis(4-Trime-thylammoniumphenyl)Porphyrin

Pan Zuting, Xu Mianyi, Chen Wanhua   

  1. Department of Chemistry, Wuhan University, Wuhan
  • Received:1986-07-10 Online:1988-01-24 Published:1988-01-24

摘要: 微量硫化物的测定国内外常采用亚甲基蓝法、分子荧光法、电极法、原子吸收分光光度法[1]和冷原子荧光法[2]等.汞(Ⅱ)可与四(4-三甲铵苯基)卟啉(简称TAPP)在室温下产生灵敏的显色反应(ε=2。85×105),并允许大量常见阴离子存在[3],但当S2-存在时,则极易抑制与其相当量的Hg(Ⅱ)-TAPP配合物的生成,根据这一原理,本文提出了利用,Hg(Ⅱ)-TAPP的显色反应间接分光光度法测定微量硫化物的新方法.

Abstract: The choice of suitable conditions is first reported for the indirect spectropho-tometric determination of trace sulfide with the colour reaction of mercury ( Ⅱ)-Tetrakis(4-trimethylammoniumphenyl) porphyrin (TAPP). Common anions such as Cl-,Br-,I-,SO42-,NO3- and SCN- do not interfere in it, and CN- can be masked by formaldehyde. This method was used for the analysis of some industrial waste water and coal-gas with satisfactory results.

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