Spectrophotometric Determination of Trace Cobalt by Catalytic Decolorization

Chem. J. Chinese Universities ›› 1989, Vol. 10 ›› Issue (2): 200.

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Spectrophotometric Determination of Trace Cobalt by Catalytic Decolorization

Chen Guoshu, Yan Xiyuan. Nie Xiaodi

Chemistry Department, Jiangxi University, Nanchang

Received:1987-07-07 Online:1989-02-24 Published:1989-02-24

Abstract

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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Chen Guoshu, Yan Xiyuan. Nie Xiaodi . Spectrophotometric Determination of Trace Cobalt by Catalytic Decolorization[J]. Chem. J. Chinese Universities, 1989, 10(2): 200.

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Spectrophotometric Determination of Trace Cobalt by Catalytic Decolorization

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