摘要
本文报告了地质样品中金含量为10^(-8)数量级时的物相分析方法.方法主要是为在化探异常评价研究中,通过查明金的赋存状态,为解释金异常的形成机制服务的.提供的分析手续可测定裸露和半裸露自然金,碳酸盐矿物包裹金,铅、锌和铜硫化物包裹金,褐铁矿包裹金,黄铁矿包裹金和石英难溶硅酸盐包裹金等六相.金总量≥10×10^(-8)时,分相后的测定限为1×10^(-10).
This paper reports the phase analysis of trace gold in geological materials. The proposed procedures can he tsed to determine the phase of exposed nd half-exposed native gold. The gold was wrapped by carbonate minerals or Pb, Zn, Cu sulfide minerals or limonite or pyrite or quartz and silicate minerals. After seperation, the determination limit is 0.1 ppb for each phase. The method has been applied to the determination of gold in standard samples and samples with anomalies of geo-chemical exploration. Satisfactory results are obtained.
出处
《冶金分析》
CAS
CSCD
北大核心
1991年第3期1-5,共5页
Metallurgical Analysis
