云南冶金2017，Vol.46Issue(3)：62-64,3.
火试金法测定阳极泥等物料中金银的含量
The Determination of Gold, Silver Content in the Anode Mud and the Other Materials by Fire Assaying
李桂香 1梅彩琴 2孙晶1
作者信息
- 1. 云南省曲靖医学高等专科学校,云南 曲靖 655000
- 2. 昆明理工大学生命科学与技术学院,云南 昆明 650500
- 折叠
摘要
Abstract
According to the features that high gold and silver content in coarse gold powder, gold anode mud, silver anode mud and the other materials, the sample is coated by lead sheath and is fed into at 900℃ high temperature furnace directly for cupellation, the composite granule of gold and silver can be got, Au and Ag is separated by using of the nature of Au cannot dissolved in HNO3, silver content is determined by KCNS titration method, gold content is determined by weighing method.Under the selected test conditions, the standard addition recovery is Au 99.51%~100.34%;Ag 99.74%~100.06%, the method has the good reproducibility, the analysis result is accurate and reliable.关键词
火试金/阳极泥/金银Key words
fire assaying/anode mud/gold and silver分类
化学化工引用本文复制引用
李桂香,梅彩琴,孙晶..火试金法测定阳极泥等物料中金银的含量[J].云南冶金,2017,46(3):62-64,3.
