摘要
采用焙烧富集分离地球化学样品中痕量Te,并用氢化物发生-原子荧光光谱法测定.通过实验确定出方法的最佳实验条件,在此条件下获得的检出限为0.005 μg/g,线性范围0.025～10 μg/g,精密度(RSD,n=8)为5.03%～9.24%.方法已用于国家一级地球化学标准物质中痕量Te的测定,结果与标准值基本相符.
A method for the determination of trace tellurium in geochemical samples by hydride generation-atomic fluorescence spectrometry with baking pretreatment of samples for Te enrichment is developed. Under the optimized experimental condition, the detection limit for Te is 0. 005 μg/g with linear range of 0. 025 - 10 μg/g. The method has been applied to the determination of trace Te in national geochemical standard reference samples and the results are in good agreement with certified values with precision of 5.03% -9.24% RSD （n = 8）.
出处
《岩矿测试》
CAS
CSCD
2005年第3期225-228,共4页
Rock and Mineral Analysis
基金
原地质矿产部重点科技项目(9505616)
关键词
氢化物发生
原子荧光光谱法
焙烧富集
碲
hydride generation
atomic fluorescence spectrometry（AFS）
baking enrichment
tellurium
