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http://dx.doi.org/10.6111/JKCGCT.2010.20.6.307

Analytic study on lead and cadmium in copper contained carbon materials  

Choi, Zel-Ho (Test & Standardization Center, Korea Institute of Ceramic Eng. & Tech.)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.20, no.6, 2010 , pp. 307-313 More about this Journal
Abstract
Quantitative analytical condition for lead and cadmium in copper contained carbon materials using solvent extraction followed by inductively coupled plasma-atomic emission spectrometry was studied. Copper contained carbon samples were dissolved by nitric acid-perchloric acid digestion. Lead and cadmium were determined after separation with KCN masked copper by an dithizone-chloroform solvent extraction. Recovery efficiency of analyte elements was satisfactory, and most of matrix elements causing interference could be effectively eliminated by the separation. Lead and cadmium were quantitatively determined without influence of sample matrix, by applying it procedure to artifact sample.
Keywords
Carbon; Copper; Solvent extraction; KCN; Dithizone;
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