岩矿测试2018，Vol.37Issue(2)：209-216,8.DOI:10.15898/j.cnki.11-2131/td.201711210183
卡林型金矿金砷成分分析标准物质研制
Preparation of Gold and Arsenic Certified Reference Materials for Chemical Composition Analysis in Carlin-type Gold Deposits
摘要
Abstract
BACKGROUND:Carlin-type gold deposits have attracted much attention because of the influence of As on the analysis and recovery of gold.It is necessary to develop the specific reference materials(RM)to support application research. OBJECTIVE:Study samples were collected from the super large Carlin-type gold deposit in the Yangshan gold mine,discovered in recent years.Four kinds of reference materials GBW07854-GBW07857 for Carlin-type gold ore were developed according to country-level standard technical specification. METHODS:A total of 20 laboratories simultaneously determined element values.The main gold analysis methods included Atomic Absorption Spectrometry and Fire Assay.Wet analysis uses gradient roasting-activated carbon adsorption of gold to separate arsenic and other interference components.Inductively Coupled Plasma-Optical Emission Spectrometry(ICP-OES)and Spectrophotometry were mainly used to analyze arsenic.Citation analysis relative deviation permissible limit to define within-group outliers makes up for the incompleteness of the Dixon and Grubbs methods to eliminate outliers. RESULTS:The homogeneity test index F <F0.05(29,30)=1.84,indicated that there were no significant differences between the groups and within the group.No statistically significant changes were observed in 5 analyses during 22 months.The certified values of gold and arsenic in this series of certified reference materials(CRMs) were superior to those of the same level country-level gold ore RMand foreign arsenic-bearing polymetallic ore RM. CONCLUSIONS:This series of CRMs can be used as standards for the analysis and study of gold and arsenic in Carlin-type gold deposits.关键词
卡林型金矿/砷/成分分析/标准物质/标准值Key words
Carlin-type gold deposit/arsenic/chemical composition analysis/reference material/certified value分类
化学化工引用本文复制引用
杨理勤,陈占生,谢璐,李玄辉,冯亮,艾晓军,汤宇磊..卡林型金矿金砷成分分析标准物质研制[J].岩矿测试,2018,37(2):209-216,8.基金项目
国家黄金专项业务费资助项目(HKY2012-05) （HKY2012-05）
