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Preparation and application of geochemical reference material for sulfide gold concentrate

Liu Mei;Gu Tiexin;Yan Weidong;Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences;Key Laboratory of Geochemical Exploration,Ministry of Land and Resources;  
There are 5 national reference materials developed for composition analysis of gold concentrates in China.However,there is no higher grade standard for quality control,for the highest gold grade of them is below 60 μg/g.To meet this demand,one gold reference material of sulfide concentrate whose grade can reach 92.0 μg/g was developed by the Institute of Geophysical and Geochemical Exploration(IGGE).And it was approved to be National Reference Material(Series No.GBW 07810) by General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China(AQSIQ) in March 2007.This material can supplement the series of gold concentrate reference materials and serve the analytical quality control of gold exploration,mining,beneficiation,metallurgy and commodity inspection.Also it would promote China's authority in the inspection and arbitration of gold concentrates in international trade.
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