1999•Journal of Huaibei Industry Teachers CollegeRequires access

Determination of Manganese by Catalytic Kinetic Spectrophotometry

Zhu Qing-re

Abstract

A new catalytic kinetic spectrophotometric method for the determination of trace manganese is studied. The method is based on the manganese(Ⅱ) catalyzed oxidation of bromopyrogallolred by oxygen in NaAc medium. The linear range of the method are 0-0.10ug/25ml and 0. 10 1.0ug/25ml. The detection limit is 9.9×10~-11g/ml. The method has been applied to the determination of trace manganese in water and tea with satisfactory results.

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Key concepts: Manganese, Spectrophotometry, Chemistry, Catalysis, Detection limit, Linear range, Kinetic energy, Potassium periodate