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电感耦合等离子体原子发射光谱法测定金矿石中铅锌砷铋镉汞

  • 作者:
  • 陈祝海
  • 作者单位:
  • 紫金矿业集团股份有限公司&福建紫金矿冶测试技术有限公司
  • 基金项目:

  • isnull
  • 详细信息:

  • 作者简介:
  • 陈祝海(1986—),男,福建三明人,工程师,从事矿物分析、水质分析和标准分析方法研究工作;福建省厦门市思明区环岛东路1811号中航紫金广场B塔,紫金矿业集团股份有限公司厦门分公司,361008;E-mail:chen_zhuhai@zijinmining.com
  • 通讯作者:
  • isnull
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Determination of Pb,Zn,As,Bi,Cd and Hg in gold ores by Inductively Coupled Plasma-Atomic Emission Spectroscopy

  • English Author:
  • Zijin Mining Group Co.,Ltd.&Fujian Zijin Mining and Metallurgy Testing Technology Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

国家标准方法测定金矿石中的铅、锌、砷、铋、镉和汞需多次溶样,操作繁琐。研究建立了混合酸消解,电感耦合等离子体原子发射光谱法同时测定金矿石中铅、锌、砷、铋、镉和汞的分析方法。实验对混合酸加入量、氟化氢铵溶液加入量、消解温度、消解时间等影响因素进行了优化。该方法各元素加入标准物质回收率为98.0 %~104.0 %,测定结果的相对标准偏差(n=11)为0.60 %~4.76 %,且与国家标准方法测定结果一致,具有操作简单,一步消解、多元素同时测定,检测效率高等优点,适用于大批量金矿石样品的检测。

关键词:

ICP-AES;金矿石;铅;锌;砷;铋;镉;汞

Abstract:

National standard testing method for Pb,Zn,As,Bi,Cd and Hg in gold ores is lengthy due to more than one sample dissolution.An analytical method was developed for simultaneous determination of Pb,Zn,As,Bi,Cd and Hg in gold ores by Inductively Coupled Plasma-Atomic Emission Spectroscopy with mixed acids digestion.The in-fluence factors were optimized such as the dosage of mixed acid,the dosage of ammonium bifluoride solution,the digestion temperature,and the digestion time.The recovery rate of standard addition of each element in the established method is 98.0 %-104.0 %.The relative standard deviation (n=11) is 0.60 %-4.76 %,which is consistent with national standard methods.The method is simple in operation and efficient in detection with one-step digestion for simultaneous determination of multiple elements,which could be applied to the detection of large quantities of samples.

Keywords:

ICP-AES;gold ore;Pb;Zn;As;Bi;Cd;Hg