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DETERMINATION OF COPPER IN GEOCHEMICAL SAMPLE USING DIRECT READING EMISSION SPECTROMETRY

XU Li-fang;No.326 Unit of Bureau of Geology and Mineral Exploration of Anhui Province;  
With powdered carbon, K_2S_2O_7, Al_2O_3 and NaF as buffer agents, Ge as internal standard, direct reading emission spectrometry is used for determination of Cu in geochemical sample, with detection limit being 0.78μg/g and precision(RSD, n=12) 4.95%~7.88%, which are in conformity with those made on national first level reference material.
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