高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (4): 418.

• 研究简报 • 上一篇    下一篇

吸收光谱电化学测定Cr(Ⅲ)、Cr(Ⅵ)的研究

黄淦泉1, 罗焕光2, 方国斌2, 张武平2   

  1. 1. 武汉大学环境科学系;
    2. 武汉大学化学系
  • 收稿日期:1987-07-21 出版日期:1989-04-24 发布日期:1989-04-24
  • 通讯作者: 黄淦泉
  • 基金资助:

    中国科学院科学基金

The Study of Determination of Cr(Ⅲ), Cr(Ⅵ) by Absorption Spectroelectrochemistry

Huang Ganquan1, Luo Huanguang2, Fang Guobin2, Zhang Wuping2   

  1. 1. Department of Environmental Science, Wuhan University, Wuhan;
    2. Department of Chemistry, Wuhan University, Wuhan
  • Received:1987-07-21 Online:1989-04-24 Published:1989-04-24

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摘要： 吸收光谱电化学方法是一种新型的分光光度法,它不必加入显色剂,只要控制电极电位和扩散层pH值,就能迅速测得吸光度。此法的基础研究近年逐渐增多,但实际应用较少。作者在前文的工作基础上,用原子吸收分光光度计和空心阴极光源组装成的吸收光谱电化学测量仪,研究了吸收光谱电化学测定Cr(Ⅲ)和Cr(Ⅵ)的条件,提出了实际样品中Cr(Ⅲ)和Cr(Ⅵ)的分析方法。

关键词: 吸收光谱电化学, 铬的测定, 电镀液

Abstract: The measurement conditions of absorption spectroelectrochemistry of Cr(Ⅲ) were investigated. The determination method of Cr(Ⅲ) and Cr(Ⅵ) in electroplating solution was proposed. The results show that the best sensitivity was obtained when atomic absorption spectrophotometer and hollow cathode light source were in place of the UVspectrophotometer and deuterium lamp was used for measurement absorption spectroelectrochemistry of Cr(Ⅲ). The technique yields increase 1.7 times in sensitivity compared with west method.

Key words: Absorption spectroelectrochemistry, Chromium determination, Electroplating solution

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