化学学报 ›› 1982, Vol. 40 ›› Issue (2): 185-190. 上一篇    下一篇

研究简报

极谱法研究金属络合物时滴汞电极表面络合剂浓度的表达式

周本省   

  1. 南京化工学院
  • 投稿日期:1980-06-23 发布日期:2013-06-03

THE EXPRESSION FOR THE CONCENTRATION OF COMPLEXING AGENT AT A DROPPING MERCURY ELECTRODE SURFACE IN POLAROGRAPHIC STUDIES OF METAL COMPLEXES

ZHOU BEN-SHENG   

  1. Nanjing Institute of Chemical Technology
  • Received:1980-06-23 Published:2013-06-03

在极谱学中,各作者得到的从半波电位E1/2求络合物稳定常数的公式中,都要用到半波电位E1/2和汞滴表面络合剂Xb-的平衡浓度[X]0这两个最基本的量[1-11].其中,E1/2这个量不但可以从实验上直接测定,而且它与标准电极电位、稳定常数、活度系数、扩散系数以及汞滴表面络合剂的平衡浓度等的关系式已由许多学者[1-6]从理论上进行了推导.

The expression for the oonoentration of oomplexing agent at a dropping meroury electrode surfaoe in polarographio studies of metal complexes is deduced on the basis of theory of diffusion current, when a series of mononuclear metal complexes: Mn+, MXn-b,MXpn-2b-+…MXpn-pb- are present in the solution.