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火试金法测定银量校正——全流程回收率法

  • 作者:
  • 赵可迪|芦新根|赵凯|阚春海|肖千鹏
  • 作者单位:
  • 长春黄金研究院有限公司&国家金银及制品质量检验检测中心(长春)|长春黄金研究院有限公司&国家金银及制品质量检验检测中心(长春)|长春黄金研究院有限公司&国家金银及制品质量检验检测中心(长春)|长春黄金研究院有限公司&国家金银及制品质量检验检测中心(长春)|长春黄金研究院有限公司&国家金银及制品质量检验检测中心(长春)
  • 基金项目:

  • isnull
  • 详细信息:

  • 作者简介:
  • 赵可迪(1990—),男,山东德州人,工程师,从事贵金属及矿物分析与标准物质研制工作;长春市南湖大路6760号,长春黄金研究院有限公司测试中心,130012;E-mail:522903966@qq.com
  • 通讯作者:
  • isnull
  • PDF下载

Silver content calibration in fire assay determination—whole process recovery rate method

  • English Author:
  • Changchun Gold Research Institute Co.,Ltd.&National Quality Inspection and Testing Center for Gold and Silver Products(Changchun)|Changchun Gold Research Institute Co.,Ltd.&National Quality Inspection and Testing Center for Gold and Silver Products(Changchun)|Changchun Gold Research Institute Co.,Ltd.&National Quality Inspection and Testing Center for Gold and Silver Products(Changchun)|Changchun Gold Research Institute Co.,Ltd.&National Quality Inspection and Testing Center for Gold and Silver Products(Changchun)|Changchun Gold Research Institute Co.,Ltd.&National Quality Inspection and Testing Center for Gold and Silver Products(Changchun)
  • Unit:
  • 摘要
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  • 参考文献

摘要:

火试金法测定银量过程中会有少量银损失,研究通过纯银在熔融和灰吹过程中的损失值来确定火试金法中银量的校正系数,即纯银回收率,对银量测定结果进行校正。实验分别考察了金银质量比、杂质元素、纯银灰吹损失等条件,排除了可能影响测定结果的因素。为验证方法的适用性,采用3种不同性质样品进行方法的精密度和准确度实验。结果表明,经本方法校正后,可以获得准确可靠的检测结果。

关键词:

火试金;银量;银校正;全流程回收率法;金银质量比;杂质元素;适?眯?

Abstract:

A small amount of silver will be lost when fire assay is used to determine silver content.The study determines the calibration coefficient of silver content and the recovery rate of pure silver in fire assay referring to the loss of pure silver in fusion and cupellation,so that the silver content determination results are calibrated.The experiments investigated mass ratio of gold and silver,impurity elements,cupellation loss of pure silver respectively,and ruled out factors possibly affecting determination results.3 samples with different properties were tested in terms of their precision and accuracy to verify the applicability of the method.The results show that calibrated by the method,accurate and reasonable determination results can be obtained.

Keywords:

fire assay;silver content;silver calibration;whole process recovery rate method;mass ratio of gold and silver;impurity element;applicability