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2002•Journal of Nanchang UniversityRequires access

SPECTROPHOTOMETRIC DETERMINATION OF TRACE MANGANESE(II) BY CATALYTIC DECOLOURIZATION

Pen Zai

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Abstract

Manganese(Ⅱ) can catalyze the oxidafive reaction of xylidyl blue(Ⅱ) with H 2O 2 in the medium of NH 3·H 2O,the optimum condition influencing the rate of catalytic decolourizmg reaction was investigated.A linear range from 0 to 0.30 μg/25 mL is obtained and the limitafion of detection for Mn(Ⅱ) is 2.62×10 -5 μg/mL.This method was satisfactorily applied to the determination of Mn(Ⅱ) in tea.

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What this paper is about

Manganese(Ⅱ) can catalyze the oxidafive reaction of xylidyl blue(Ⅱ) with H 2O 2 in the medium of NH 3·H 2O,the optimum condition influencing the rate of catalytic decolourizmg reaction was investigated.A linear range from 0 to 0.30 μg/25 mL is obtained and the limitafion of detection for Mn(Ⅱ) is 2.62×10 -5 μg/mL.This method was satisfactorily applied to the determination of Mn(Ⅱ) in tea.

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Available abstract

Manganese(Ⅱ) can catalyze the oxidafive reaction of xylidyl blue(Ⅱ) with H 2O 2 in the medium of NH 3·H 2O,the optimum condition influencing the rate of catalytic decolourizmg reaction was investigated.A linear range from 0 to 0.30 μg/25 mL is obtained and the limitafion of detection for Mn(Ⅱ) is 2.62×10 -5 μg/mL.This method was satisfactorily applied to the determination of Mn(Ⅱ) in tea.

Key concepts: Manganese, Catalysis, Chemistry, Linear range, Nuclear chemistry, Detection limit, Chromatography, Organic chemistry

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