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Gold Science and Technology ›› 2014, Vol. 22 ›› Issue (1): 78-80.doi: 10.3969/j.issn.1005-2518.2014.01.078

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Determination of Trace Germanium in Polymetallic Ores by Hydride Generation Atomic Fluorescence Spectrometry

LI Xian，LUO Shanxia，JIAO Shengbing，CAO Yongyang   

  1. Hebei Institute of Regional Geology and Mineral Resources Survey，Langfang   065000，Hebei，China
  • Received:2013-09-27 Revised:2013-11-08 Online:2014-02-28 Published:2014-06-25

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Abstract:

The germanium in polymetallic ores was dissolved by HNO3+ HF+H2SO4+ HClO4 and was measured by hydride generation-atomic fluorescence spectrometry（AFS）.The effects of some parameters such as the H3PO4 concentration and KBH4 concentration，working parameters of the AFS instrument on the determination were studied and optimized by experiments.The allowable quantities of the interference elements were also invested.The detection limit of this method was 0.024 μg/g，RSD was in the range of 4.79% to 5.53% and the recovery of standard addition was 93.5% to 107.3%.The method was validated by determination of Ge in National Standard Reference Materials and the results were in agreement with certified values.

Key words: HG-AFS, polymetallic ores, germanium

CLC Number: 

  • O657.3

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