原子荧光光谱法同时测定感冒冲剂中的砷和锑

Simultancous determination of arsenic and antimony in Ganmao Chongji by atomic fluorescence spectrometry

介绍了一种氢化物发生—双道原子荧光光谱法同时测定感冒冲剂中砷和锑的方法。进行了实验条件的最佳化选择 ,探讨了共存离子对砷和锑测定的干扰和消除方法。在最佳工作条件下 ,砷和锑的检出限分别为 0 0 90 3μg/L和 0 0 5 78μg/L ,相对标准偏差分别为 2 0 1%和 1 39% ,砷和锑的样品测定回收率分别为89 2 %～ 97 8%和 90 8%～ 10 1 4 %。

A method has been described for the simultaneous determination of arsenic and antimony in Ganmao Chongji by hydride generation-double channel atomic fluorescence spectrometry (HG-AFS). The experimental conditions that influence the fluorescence intensities of arsenic and antimony were investigated and optimized, and the influence from foreign ions and their eliminations were studied. The detection limits were found to be 0 0903 μg/L and 0 0578 μg/L for arsenic and antimony, respectively. The proposed method was applied to the determination of arsenic and antimony species in Ganmao Chongji. Recoveries were in the ranges of 89 2%～97 8% and 90 8%～101 4% for As and Sb, respectively.