原子荧光光谱法测定裂解汽油中的痕量砷  

Determination of Trace As in Pyrolysis Gasoline by Atomic Fluorescence Spectrometry

作　　者：张小确[1] 杨德凤[1] 王树青[1] 

机构地区：[1]石油化工科学研究院,北京100083

出　　处：《现代科学仪器》2008年第2期79-82,共4页Modern Scientific Instruments

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.

关 键 词：砷 原子荧光光谱法 氢化物发生 裂解汽油 

分 类 号：TE622.1[石油与天然气工程—油气加工工程]