氢化物发生-原子荧光光谱法测定石脑油中的砷含量  

DETERMINATION OF ARSENIC IN NAPHTHA BY HYDRIDE GENERATION ATOMIC FLUORESCENCE SPECTROMETRY

作　　者：王树青[1] 杨德凤[1] 张小确[1] 

机构地区：[1]石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2008年第1期66-70,共5页Petroleum Processing and Petrochemicals

摘　　要：建立了一种氢化物发生原子荧光光谱法测定石脑油中砷含量的新方法。对仪器的工作条件以及该方法的实验条件分别进行了优化。在优化条件下，用该方法测定石脑油中As含量的检出限为0．020μg／L，相对标准偏差小于3％，加标回收率为98．9％～100．3％。该方法灵敏度高，测定结果准确可靠，可广泛应用于石脑油样品中砷含量的测定。A new method for arsenic determination in naphtha using hydride generation atomic fluorescence spectrometry（ HG-AFS） was developed. The parameters of sample pretreatment and hydride generation were optimized. Under the optimum testing conditions, a detection limit of 0. 020 μg/L for arsenic was obtained. The relative standard deviation（RSD）was less than 3%,and the recovery rate of adding standard material was in the range of 98.9%- 100.3%. This method is sensitive, rapid, and accurate. It can be used for the determination of arsenic in naphtha widely. e

关 键 词：石脑油 砷 原子荧光光谱 氢化物 

分 类 号：TE622.1[石油与天然气工程—油气加工工程]