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Catalytic Kinetic Spectrophotometric Determination of Trace Copper (II)

Sun Bin

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Abstract

s:A new method is studied for the determination of trace copper (Ⅱ). It is based on the fact that Cu(Ⅱ) can catalyze the fading oxidation of neutral red by hydrogen peroxide in the medium of Ammonia-Ammonium chloride . The linear range of measurement is 0.0~2.5μg/25mL. The detection limit of Cu(Ⅱ)is 4.52×10-7 g·L-1 . The method is simple and sensitive for the determination of trace Cu(Ⅱ) in lake samples.

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What this paper is about

s:A new method is studied for the determination of trace copper (Ⅱ). It is based on the fact that Cu(Ⅱ) can catalyze the fading oxidation of neutral red by hydrogen peroxide in the medium of Ammonia-Ammonium chloride . The linear range of measurement is 0.0~2.5μg/25mL. The detection limit of Cu(Ⅱ)is 4.52×10-7 g·L-1 . The method is simple and sensitive for the determination of trace Cu(Ⅱ) in lake samples.

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Available abstract

s:A new method is studied for the determination of trace copper (Ⅱ). It is based on the fact that Cu(Ⅱ) can catalyze the fading oxidation of neutral red by hydrogen peroxide in the medium of Ammonia-Ammonium chloride . The linear range of measurement is 0.0~2.5μg/25mL. The detection limit of Cu(Ⅱ)is 4.52×10-7 g·L-1 . The method is simple and sensitive for the determination of trace Cu(Ⅱ) in lake samples.

Key concepts: Copper, Detection limit, Hydrogen peroxide, Chemistry, TRACE (psycholinguistics), Ammonia, Catalysis, Linear range

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