高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (2): 200.

• 研究简报 • 上一篇    下一篇

动力学光度法测定痕量钴的研究

陈国树, 晏细元, 聂小弟   

  1. 江西大学化学系
  • 收稿日期:1987-07-07 出版日期:1989-02-24 发布日期:1989-02-24
  • 通讯作者: 陈国树

Spectrophotometric Determination of Trace Cobalt by Catalytic Decolorization

Chen Guoshu, Yan Xiyuan. Nie Xiaodi   

  1. Chemistry Department, Jiangxi University, Nanchang
  • Received:1987-07-07 Online:1989-02-24 Published:1989-02-24

摘要: 催化动力学法测定微量Co2+已有报道,方法灵敏度一般在10-6~10-10g数量级,多数用于测定水、血液和高纯物质中的Co2+,而测定中药內的痕量CO2+还未见报道。

关键词: 催化褪色, 分光光度法, 二苯偶氮酰肼, 钴(Ⅱ)

Abstract: Go(Ⅱ) in ammonium hydroxide can accelerate the decolorizing indicative reaction of diphenylcarbazone being oxidized by air. Anew high-selective method for determining trace Co(Ⅱ) is described. The sensitivity of the method is 2×10-12g/mL, In the range of Cobalt 0-0.11μg/25.7mL the method was used to determine trace Co(Ⅱ) in Chinese medicinal herb with satisfactory results.

Key words: Catalytic decolorization, Spectrophotometry, Dlphenylcarbazone, Gobalt(Ⅱ)

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