Abstract
An automatic reaction rate method is described for the microdetermination of copper. The method is based on the catalytic action of copper on the reaction of 2,4-diaminophenol with hydrogen peroxide. The Effect of reagent concentration is studied and the maximum tolerable amounts of interfering ions are determined. Procedures for the determination of 0.2–12.0 μg copper per ml are given; 0.2–12.0 μg/ml of copper could be determined with a relative error of about 2%.
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