原子荧光光谱法同时测定发酵虫草菌粉中砷和汞  

Simultaneous determination of arsenic and mercury in fermental cordyceps sinensisfy powder by atomic fluorescence spectrometry

作　　者：李峰[1] 吴雪祥[1] 

机构地区：[1]杭州市萧山区疾病预防控制中心,杭州311201

出　　处：《中国卫生检验杂志》2007年第6期1033-1034,共2页Chinese Journal of Health Laboratory Technology

摘　　要：目的:建立采用原子荧光光谱法同时测定发酵虫草菌粉中砷和汞的方法。方法:标准及样品经消解,直接用AFS-9130型双道原子荧光仪分析,并对实验条件进行优化。结果:在选定的最佳条件下,测得砷和汞的相对标准偏差分别为0.75和1.86。砷和汞的回收率分别为94.5%～104.0%和89.4%～107.8%。结论:该方法具有较高的灵敏度、准确度和精密度。Objective：A method for the determination of arsenic and mercury in fermental cordyceps sinensisfy powder by atomic fluorescence spectrometry has been developed. Methods： The criterion and sample were dissolved by microwave and analyzed by AFS- 9130 double- channel atomic fluorescence spectrometer. Meanwhile, we optimized the experiment condition. Results ： At the best condition, the relative standard deviation of arsenic and mercury were 0. 75 and 1.8. The coveries of arsenic and mercury ranged from 94. 5% to 104. 0% and 89. 4% to 107. 8% ,respectively. Conclusion：The results indicate that the above method is highly sensitive, repeatable and applicable.

关 键 词：原子荧光光谱法 同时测定 砷 汞 发酵虫草菌粉 

分 类 号：O657.31[理学—分析化学]