高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (7): 676.

• 论文 • 上一篇    下一篇

阳极溶出伏安法测定氨羧配合物的组成与稳定常数

杭太俊, 彭慈贞   

  1. 南京大学化学系
  • 收稿日期:1987-01-13 出版日期:1988-07-24 发布日期:1988-07-24
  • 通讯作者: 彭慈贞

Determination of Components and Stability Constants of Metal Chelates by Anodic Stripping Voltammetry

Hang Taijun, Peng Cizhen   

  1. Department of Chemistry, Nanjing University, Nanjing
  • Received:1987-01-13 Online:1988-07-24 Published:1988-07-24

摘要: 本文用阳极溶出伏安法研究氨羧配合物,采用最小二乘曲线拟合和统计权重平均等程序处理实验数据,测定了三乙四胺六乙酸(TTHA)、氨三乙酸(NTA)和乙二胺四乙酸(EDTA)与Pb(Ⅱ)、Cd(Ⅱ)和Zn(Ⅱ)离子所生成的配合物的稳定常数和组成。测定结果与文献值相符。

关键词: 阳极溶出, 稳定常数, 配合物, 最小二乘法

Abstract: Anodic stripping voltammetry method was used in the study of metal chelates. The systems of Pb(Ⅱ), Cd(Ⅱ) and Zn(Ⅱ) with EDTA, Pb(Ⅱ) with NTAand Pb(Ⅱ), Cd(Ⅱ) with TTHA have been investigated. The components of these chelates were determined and the stability constants were calculated. They are in good agreement with literature results.

Key words: Anodic stripping, Stability constants, Metal chelate, Least square method

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