摘要
采用流动注射石英管原子吸收法测定铅锭中痕量砷。对仪器工作条件、测定体系酸度、共存离子干扰等作了试验。此方法线性相关系数大于0 9990,检出限为0 065μg·L-1,RSD为1 9%～5 4%,标准加入回收率在96%～102%之间。
This paper describes a mathod for the determination of arsenic in lead ingots with a flow injection quartz tube atomic absorption spectrometry.Systematic studies are made for the optimum analytical conditions,e.g.the working condition of the instrument,the acidity of sample solution,the interference of co-existing ions and etc.The correlation coefficients of the method is>0.9990 %,the detection limit is 0.065 μg·L^(-1),RSD is in the range of 1.9 %～5.4 % and the recovery is in the range of 96 %～102 %.
出处
《蓄电池》
北大核心
2005年第1期45-46,共2页
Chinese LABAT Man
关键词
原子吸收法
流动注射
铅锭
砷
atomic absorption
flow injection
lead ingots
arsenic
