白花蛇舌草中的汞和砷的氢化物发生-原子荧光光谱测定  

Determination of Mercury and Arsenic in Herba Hedyotidis Diffusae by Hydride Generation-Atomic Fluorescence Spectrometry(HG-AFS)

作　　者：韩永春[1] 罗晓冰[2] 卑占宇[1] 吴学飞[2] 

机构地区：[1]承德广播电视大学招生办 [2]赣南医学院药学院,江西省赣州市341000

出　　处：《光谱实验室》2009年第6期1616-1619,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：一次性微波消解法,利用原子荧光光谱法(AFS)对白花蛇舌草中的砷和汞进行测定。结果指出,3个产地白花蛇舌草中砷、汞的相对标准偏差小于3%,加标回收率在95.0%—103.0%的范围内。本法简单、准确,适用于中药材有害重金属的含量检测。As and Hg in Herba hedyotidis diffusae were digested by microwave method and determined by atomic fluorescence spectroscopy （AFS）. The contents of As, Hg in Herba hedyotidis diffusae from 3 different regions were determined with RSD〈3.0%. The sample recovery is within the range of 95. 0%-103. 0%. The method is simple and accurate; therefore it can be used in determining the contents of heavy metals in Chinese herbs.

关 键 词：白花蛇舌草 砷 汞 氢化物发生-原子荧光光谱法 

分 类 号：O657.31[理学—分析化学]