摘要
提出了用氢化物发生/原子荧光光谱法测定乙烯裂解汽油中痕量砷的分析方法,解决了该类样品中砷含量测定的难题。方法的检出限为0.023μg/L,工作曲线的线性程度高,重复性好(n=7时,RSD<3%),加标回收率高,可较好地满足工业生产的控制分析需要。
A method for determination of trace As in ethylene pyrolysis gasoline by hydride generation - atomic fluorescence spectrometry （ HG - AFS） was developed. The problem to measure accurately the content of As was solved by this method. The detection limit was 0. 023 μg/L. The working curve exhibits good linear characteristic. The experimental results has good repeatability （ n = 7, RSD 〈 3 % ）. This new method can meet the mands for control analysis in industrial production with high recovery rate.
出处
《现代科学仪器》
2008年第2期79-82,共4页
Modern Scientific Instruments
关键词
砷
原子荧光光谱法
氢化物发生
裂解汽油
Arsenic
atomic fluorescence spectrometry
hydride generation
pyrolysis gasoline
