Determination of Trace Manganese (Ⅱ) by Its Catalytic De-colourizing Reaction On the Aerial Oxidation of 1.5-bis (2-hydroxy-5-chlorophenyl)-3-cyanoformazan and Its Kinetic Reaction Mechanism

Shao Min LIU Jiao Mai PAN

引用本文: Shao Min LIU,  Jiao Mai PAN. Determination of Trace Manganese (Ⅱ) by Its Catalytic De-colourizing Reaction On the Aerial Oxidation of 1.5-bis (2-hydroxy-5-chlorophenyl)-3-cyanoformazan and Its Kinetic Reaction Mechanism[J]. Chinese Chemical Letters, 1999, 10(5): 403-406. shu
Citation:  Shao Min LIU,  Jiao Mai PAN. Determination of Trace Manganese (Ⅱ) by Its Catalytic De-colourizing Reaction On the Aerial Oxidation of 1.5-bis (2-hydroxy-5-chlorophenyl)-3-cyanoformazan and Its Kinetic Reaction Mechanism[J]. Chinese Chemical Letters, 1999, 10(5): 403-406. shu

Determination of Trace Manganese (Ⅱ) by Its Catalytic De-colourizing Reaction On the Aerial Oxidation of 1.5-bis (2-hydroxy-5-chlorophenyl)-3-cyanoformazan and Its Kinetic Reaction Mechanism

摘要: A kinetic method is described for the determination of trace amounts of maneancse(Ⅱ) based on its catalytic effect on the aerial oxidation of 1.5-bis (2-hydrox)-5-chlorophenyl)-3-cyanofonnazan. The reaction is followed spcctrophotometrically by measuring the rate of change in absorbancc at 580nm. The calibration curve (rate constant vs. manganese concentration) is linear in the range of 10~200ng in 25ml solutions. Kinetic parameters of the reaction arc reported. There are few interfcrences.

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  • 收稿日期:  1998-11-17
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