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《Rock and Mineral Analysis》 2004-03
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Determination of Trace Germanium in Geological Samples by Hydride Generation Atomic Fluorescence Sepctrometry

XIAO Ling, ZHANG Pei-xin, HU Yue-hua (Geological Survey of Jiangsu Province, Nanjing 210018, China)  
A method for the determination of trace germanium in geological samples by hydride generation atomic fluorescence spectrometry was described. The influence of HNO_(3), H_(2)SO_(4), HClO_(4), H_(3)PO_(4) on dissolving of germanium in sample digestion process was studied. AgNO_(3) gas filter device was used for elimination of interference from gas phase. The detection limit of the method is 0.06 μg/g for germanium. The method has been applied to the determination of trace germanium in national geological standard samples of GBW 07401~GBW 07408. The (results) are in agreement with certified values with precision of 2.7%~4.3% RSD (n=12).
【CateGory Index】: O657.3
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