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化学学报
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化学学报 ›› 1982, Vol. 40 ›› Issue (3): 243-250. 上一篇    下一篇

论文

CdS-Ag2S混晶膜电极对络合剂的响应

漆德瑶, 应太林, 吴芯芯   

  1. 上海工业大学冶金工程系
  • 投稿日期:1980-09-20 发布日期:2013-06-03
  • 通讯作者: 漆德瑶

RESPONSE OF THE CADMIUM SULFIDE-SILVER SULFIDE MEMBRANE ELECTRODE IN THE PRESENCE OF COMPLEXING AGENTS

QI DE-YAO, YIN TAI-LIN, WU XIN-XIN   

  1. Metallurgy Department, Shanghai University of Technology
  • Received:1980-09-20 Published:2013-06-03

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本文选择了八种典型的有代表性的络合剂,分别观察了它们在CdS-Ag2S混晶膜电极上的响应,并根据实验值和计算值的比较,探讨了与镉电极响应有关的络合平衡以及应用镉电极测定某些络合物常数的问题,指出了所研究的络合剂在镉电极测试中的实用意义.

The behavior of a cadmium selective electrode made of, CdS-Ag2S in the presence of compleging agents is discussed. For systematic observation, eight typical oompleg- ing agents, namely EDTA, EDTA, NTA, Trien, nitrate, tartrate, acetate and NHa have been selected. In the presence of added cadmium(Ⅱ),the response of the electrode decreases when pH is above 8-9, showing the hydrolysis of cadmium ion. In the absenco of addod oadmium(Ⅱ),a much higher value was found egporimentally for oho concentration df cadmium than that calculated from eq.(1).