氢化物发生-原子荧光光谱法与原子吸收光谱法测定硒和汞  

Determination of Hg and Se by HG-AFS and HG-AAS

作　　者：谢小雪[1] 冯楚楚[1] 陈露霞[1] 陈丹飞 叶明德[1] 

机构地区：[1]温州大学化学与材料工程学院,浙江省温州市茶山高教园区325035

出　　处：《光谱实验室》2014年第2期270-274,共5页Chinese Journal of Spectroscopy Laboratory

摘　　要：利用氢化物发生一原子荧光光谱法和原子吸收光谱法测定水产品中Se／Hg，系统比较两种方法之间的关系和各自的优缺点。研究结果表明，原子荧光光谱法对Se、Hg的检出限分别为0．0814、0．0093μg／L，精密度分别为1．42％、2．37％：原子吸收光谱法对Se、Hg的检出限分别为0．172、0．0125μg／L，精密度分别为4．14％、3．91％。采用上述两种方法对4种样品中Se、Hg含量进行加标回收实验，回收率均在89．6-104．4％之间。两种检测方法的测量结果无显著性差异；而氢化物发生原子荧光光谱法法的检出限更低，灵敏度更高，准确度更好，更适用于水产品中Se、Hg的痕量分析。The comparison of atomic fluorescent method （AFM） and hydride generation-atomic absorption method （HG-AAM） for analyzing mercury and selenium in aquatic products was studied, our study intended to explain their relationship and characteristics, and provided evidence for measurement result explaining and implication. The study indicated that the detection limits （3s/k） of Se, Hg by AFS were 0.0814 , 0.0093μg/L; and relative standard deviations were 1.42%,2.37% ; In the other side, the detection limits （3slk） of Se, Hg by AAS were 0.172, 0.0125μg/L; and relative standard deviations were 4.14%, 3.91%, respectively. The spiked recoveries of both method ranged between 89.6% and 104.4%.The diversity analysis shown no difference in the determination of Se, Hg between two analysis method. The comparison result shown that it＇s easier by using AFM to get a conclusion of having significance and its results are more reliable, so AFM is suggested to be used in detecting environmental mercury and selenium load.

关 键 词：方法对比 氢化物发生原子荧光光谱法 氢化物发生原子吸收光谱法 硒 汞 

分 类 号：O657.31[理学—分析化学]