Determination of Trace Germanium in Polymetallic Ores by Hydride Generation Atomic Fluorescence Spectrometry
Received date: 2013-09-27
Revised date: 2013-11-08
Online published: 2014-06-25
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
LI Xian , LUO Shanxia , JIAO Shengbing , CAO Yongyang . Determination of Trace Germanium in Polymetallic Ores by Hydride Generation Atomic Fluorescence Spectrometry[J]. Gold Science and Technology, 2014 , 22(1) : 78 -80 . DOI: 10.3969/j.issn.1005-2518.2014.01.078
［1］ 李丹，李彪.痕量锗的分析进展［J］.冶金分析，2010，30（12）：33-38.
［2］ 温彬宇，张锦柱.微量锗分析测定的研究进展［J］.稀有金属，2004，28（2）：414-418.
［3］ 张勤，范凡，李淑娟，等.氢化物—原子荧光光谱法直接测定地质物料中痕量锗［J］.岩矿测试，1996，15（4）：286-289.
［4］ 许庆福，周长祥，张文娟.地球化学样品中痕量锗的氢化物发生—原子荧光法测定［J］.山东地质，2001，17（6）：51-54.
［5］ 覃祚明.氢化物发生—原子荧光光谱法测定锌精矿中的锗［J］.广东有色金属学报，2002， 12（增）：66-69.
［6］ 肖灵，张培新，胡月华.原子荧光光谱法测定地质样品中的痕量锗［J］.岩矿测试，2004，23（3）：231-234.
［7］ 李玄辉，陈占生.高压消解—氢化物发生—原子荧光光谱法测定植物样品中的砷、锑［J］.黄金科学技术，2008，16（6）：39-41.
［8］ 张永文，刘新会，王凯，等.原子荧光法测定微细浸染型金矿中化探样品的方法研究［J］.黄金科学技术，2011，（3）：79-82.
［9］ 何炼，郝原芳.氢化物发生原子荧光光谱法测定铜矿中的锗［J］.山东理工大学学报（自然科学版），2004，18（5）：13-16.
［10］ 董亚妮，田萍，熊英，等.氢化物发生—原子荧光光谱法测定铜铅锌矿石中的微量锗［J］.岩矿测试，2010，29（4）：395-398.
/
| 〈 |
|
〉 |