高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (9): 881.

• 论文 • 上一篇    下一篇

化学振荡反应用于分析测试——测定铊及汞离子的B-Z反应体系

梁逸曾, 俞汝勤   

  1. 湖南大学化学化工系
  • 收稿日期:1987-02-23 出版日期:1988-09-24 发布日期:1988-09-24
  • 通讯作者: 梁逸曾

Application of Chemical Oscillating Reaction to Chemical Analysis——B-Z Reaction System for Determination of Tl(Ⅰ) and Hg(Ⅱ)

Liang Yizeng, Yu Ruqin   

  1. Department of Chemistry and Chemical Engineering, Hunan University, Changsha
  • Received:1987-02-23 Online:1988-09-24 Published:1988-09-24

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摘要： 对化学振荡反应用于分析测试进行了初步研究,发现对于铊离子或汞离子.BefosovZhabotinsky振荡反应体系是一选择性好,灵敏度较高的动力学测定体系,其振荡曲线的周期改变与存在于体系中的铊离子(或汞离子)的量成良好的线性关系,可测定微量铊(或汞)。用Monte-Carlo模拟算法对其机理进行了讨论,得出与事实相吻合的结果。

关键词: 振荡反应, 铊和汞的测定, Monte-Carlo模拟

Abstract: The application of chemical oscillating reactions to chemical analysis was investigated. It was found that Belosov-Zhabotinsky reaction system is a dynamic de.ter-mination system of good selectivity and sensitivity to thallium(or mercury)ions. The change of the period of oscillating curve of B-Zreaction is linearly proportional to the amount of Tl(Ⅰ)(Hg(Ⅱ)) existing in the system, which can be used to determine 0.08~10 ppm Tl(Ⅰ)(or Hg(Ⅱ)). The mechanism of this analysis system is discussed by means of the Monte Carlo simulation technique, and the results agreeing with the experimental fact were obtained.

Key words: Osoillating reaction, Determination of Tl and Hg, Monte Carlo simulation

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