摘要
HNO3分解样品后,直接用火焰原子吸收法测定铋及氧化铋中铜、铅、铁、镉、镍。方法的检出限分别为Cu0.22μg/g,Pb1.5μg/g,Fe0.39μg/g,Cd0.11μg/g,Ni0.34μg/g。与国标方法进行比较,分析结果基本一致,精密度试验,各元素的RSD(n=6)≤5.2%。
A method for sequential determination of copper, lead, iron, cadmium and nickel in bismuth and bismuth oxide by AAS after sample decomposition with HNO3 is developed. The detection limits for copper, lead, iron, cadmium and nickel are 0.22 μg/g, 1.5 μg/g, 0.39 μg/g, 0.11 μg/g and 0.34 μg/g respectively. The method has been applied to determination of these elements in bismuth and bismuth oxide samples. The results are in agreement with those provided by international standard methods with precision of ≤5.2% RSD (n=6).
出处
《岩矿测试》
CAS
CSCD
北大核心
2003年第1期70-72,共3页
Rock and Mineral Analysis
关键词
原子吸收法
铋
氧化铋
铜
铅
铁
锡
镍
检出限
atomic absorption spectrometry
copper
lead
iron
cadmium
nickel
bismuth matrix
