摘要
应用甲基膦酸二甲庚脂(P350 )萃取分离干扰元素,无火焰原子吸收光谱法测定地球化学样品中的铟。方法检出限为0. 022×10-6,对铟含量为0. 064μg/g和4. 1μg/g的样品进行11次测定,RSD分别为12. 2%和6. 4%。经过国家一级标准物质分析验证,结果与标准值符合。
Indium in geochemical samples can be determined by no n -flame atomic absorption spectroscopy with P 350 extraction to remove inte rference elements. The detection limit of the method is 0.022×10 -6. The a nalytical precision for the samples with w(In)=0.064 μg/g and w(In)=4 .1 μg/g were 6.4% and 12.2% (RSD, n=11). The method has been verified b y determination of indium in standard reference samples.
出处
《岩矿测试》
CAS
CSCD
2005年第2期138-140,共3页
Rock and Mineral Analysis
