1999•Analytical LaboratoryRequires access

Determination of Trace Copper(II) by Catalytic Kinetic Spectrophotometry

Chang Zhu

Abstract

Based on the discolouring reaction between potassium peroxysulfate and light green SF with the catalytic effect of copper(Ⅱ), a new catalytic spectrophotometric method for the determination of trace copper(Ⅱ) was established.The concentration range is 0 005～0 10μg/25mL; the detection limit is 6 4ng/mL. This method has been used for the determination of copper(Ⅱ) in natural water and ore samples, the results are satisfactory.

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Key concepts: Chemistry, Copper, Detection limit, Spectrophotometry, Catalysis, Potassium periodate, Potassium, TRACE (psycholinguistics)