摘要
探讨了金的活动态各相态(水浸出态、粘土吸附态、有机链合态、铁锰氧化物态)提取操作和中子活化分析测定的条件,列出了部分样品中金活动态分析结果和其测定精度范围。各相态的空白值和RSD(n=5)分别为:水浸出态0.030ng/g,4.5%～26.0%;粘土吸附态0.05ng/g,11.6%～25.2%;有机链合态0.06ng/g,3.7%～26.8%;铁锰氧化物态0.05ng/g,5.9%～31.6%。
A method for the determination of active states of gold by neutron activation analysis (NAA) is developed.The procedures for extraction of various active states of gold and determination condition for gold by NAA are studied. The blank values and determination precision (n=5) for various active states of gold are 0.030 ng/g with 4.5%～26.0% RSD in water extractable phase,0.05 ng/g with 11.6%～25.2% RSD in clay absorbed phase,0.06 ng/g with 3.7%～26.8% RSD in organic phase and 0.05 ng/g with 5.9%～31.6% RSD in FeMn oxide phase.
出处
《岩矿测试》
CAS
CSCD
北大核心
2002年第4期271-274,共4页
Rock and Mineral Analysis
基金
国土资源部地质大调查项目(20003010003116)
