高等学校化学学报

高等学校化学学报 ›› 1984, Vol. 5 ›› Issue (2): 175.

• 论文 • 上一篇    下一篇

钴镍与1,2-环己烷二肟络合物的极谱催化波研究

安镜如, 张清   

  1. 福州大学化学化工系
  • 收稿日期:1982-09-25 出版日期:1984-04-24 发布日期:1984-04-24

INVESTIGATION OF POLAROGRAPHIC CATALYTIC WAVES OF COBALT AND NICKEL-NIOXIME COMPLEXES

An Jingru, Zhang Qing   

  1. Department of Chemistry, Fuzhou University, Fuzhou
  • Received:1982-09-25 Online:1984-04-24 Published:1984-04-24

PDF (PC)

被引次数

7

摘要： 在NaOH-1,2-环己烷二肟-NH4Cl-NaNO2体系中,钴镍均能产生灵敏的极谱催化波,在该体系中催化波的峰高与钴镍浓度成很好的线性关系,钴镍的最低检出极限分别为0.02和0.33ppb,对于1ppbCo和50ppb的Ni进行连续测定,其变更系数分别为±2.0％和±2.2％(n=10),本文详细地研究了形成Co、Ni催化波的条件,并初步探讨了机理,提出了可以同时测定痕量Co与Ni的分析方法。

Abstract: Cobalt and nickel give sensitive adsorption catalytic waves in the system of NaOH-Nioxime-NH4Cl-NaNO2. The height of the catalytic waves is directly proportional to the concentration of Co and Ni in the range of 0.025-2 ppb and 1-100 ppb respectively.The detection limit is 0.02 ppb for Co, 0.33 ppb for Ni. Various conditions and mechanism of catalytic waves of Co and Ni in this system have been studied in detail. An analytic method of consecutive determination of trace Co and Ni was proposed.

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