高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (4): 415.

• 研究简报 • 上一篇    下一篇

示差脉冲极谱法研究(Ⅹ)--受扩散和后行化学反应控制的极谱电流理论

张剑荣, 张祖训   

  1. 南京大学化学系
  • 收稿日期:1987-07-20 出版日期:1989-04-24 发布日期:1989-04-24
  • 通讯作者: 张剑荣

Investigation on Differential Pulse Polarography(Ⅹ)--Theory of Polarographic Currents Controlled by Diffusion and a Followed Chemical Reaction

Zhang Jianrong, Zhang Zuxun   

  1. Department of Chemistry, Nanjing University, Nanjiny
  • Received:1987-07-20 Online:1989-04-24 Published:1989-04-24

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摘要： 受前行化学反应和平行化学反应的示差脉冲极谱电流理论已有论述。本文报道了受扩散和后行化学反应(EC过程)控制的示差脉冲极谱电流方程式并用实验进行了验证,应用该理论求得的动力学参数与文献值一致。

关键词: 脉冲极谱, 后行化学反应

Abstract: The equation of the pulse polarographic curve controlled by diffusion and a followed chemical reaction is derived in this paper.Tests were carried out to verify the theory by using the oxidation of cadmium amalgam in KNO3, HOAc-NaOAc, EDTA (or NTA) solution. The results obtained are in good agreement with the theoretical conclusion.The K,k1k2values determined agree with those obtained by other polarographic methods found in literatures.

Key words: Pulse polarography, Followed chemical reaction

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