T. Mukoyama, Takuo Hasebe
1971
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Influential Citations
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Journal
Bunseki Kagaku
Abstract
Zinc dibenzyldithiocarbamate was used for a rapid determination of copper with spectrophotometric method.A simplified analytical procedure is as follows. After dissolution of the sample with an acid, it is diluted with water to an appropriate concentration (0.54N in case of nitric acid, 111N in sulfuric acid and 110N in hydrochloric acid) and 10 ml of 0.03% Zn-dibenzyldithiocarbamate in carbon tetrachloride is added. After shaking for 3 minutes, the absorbance of the organic phase at 438 mμ is measured against the reagent blank.This method was more sensitive than diethyldithiocarbamate method and was applied to the determination of microgram quantities of copper in high purity metals. The zinc salt as the reagent could be replaced also by sodium or potassium salt.