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化学学报
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化学学报 ›› 1980, Vol. 38 ›› Issue (4): 381-386. 上一篇    下一篇

研究简报

电极防吸附膜研究

顾宏堪, 刘明星, 包万友   

  1. 中国科学院海洋研究所 青岛
  • 投稿日期:1977-12-30 发布日期:2013-06-03

A STUDY OF THE ANTIADSORPTION MEMBRANE OF ELECTRODE

GU HONG-KEN, LIU MING-XING, BAO WAN-YOU   

  1. Institute of Oceanology, Academia Sinica, Qingdao
  • Received:1977-12-30 Published:2013-06-03

PDF

716

被引次数

40

在电化学分析及电极过程动力学研究中,表面活性物质在电极上的吸附,常使测量结果受到严重影响[1,2]。在天然水的反向极谱分析中,由于天然水,特别是海水,含有大量表面活性物质及悬浮体,并且分析溶液又进行搅拌,因此对电极的灵敏度及重演性影响特别严重[3-5]。用汞膜电极测定一个新采集的海水样品后,即需重新涂汞[3,4]。

The antiadsorption membrane of electrode was first proposed by us and it was completed in 1977.The adsorption on the surface of solid electrode can be prevented successfully.The characteristics of antiadsorption electrode were also studied.The antiadsorption membrane consists of a net structure of alginic acid or calcium alginate.The method of preparation is as follows: Put the electrode in 1.0% sodium alginate, take out slowly and put it gently in a 0.10N HCl or saturated calcium chloride solution for about half a minute, and.take out again.A colorless transparent alginic acid or calcium alginate membrane is formed on the electrode.The alginic acid membrane is useful in acidic solution, and the calcium alginate membrane is useful in alkaline solution.