Simultaneous Speciation Analysis of Arsenic and Antimony in Traditional Chinese Medicines by Hydride Generation-Double Channel Atomic Fluorescence Spectrometry
YANG Li-li1,LI Na2,ZHANG De-qiang3*
1. College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050016, China 2. Department of Chemical Engineering, Huaihai Engineering College, Lianyungang 222005, China 3. Hebei Academy of Sciences, Shijiazhuang 050081, China
Abstract：A method is described for the simultaneous determination of As(Ⅲ), As(Ⅴ), Sb(Ⅲ) and Sb(Ⅴ) in traditional Chinese medicines 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 of foreign ions and their elimination were studied. The detection limits were found to be 0.090 3 and 0.057 8 μg·L-1 for arsenic and antimony, respectively. The proposed method was applied to the determination of arsenic and antimony species in traditional Chinese medicines. Recoveries were in the ranges of 90.1%-105.0%, 91.3%-102.0%, 94.7%-109.0% and 98.2%-110.0% for As(Ⅲ), As(Ⅴ), Sb(Ⅲ) and Sb(Ⅴ), respectively.
Key words：Hydride generation-double channel atomic fluorescence spectrometry;Speciation analysis;Arsenic;Antimony;Traditional Chinese medicine
杨莉丽1,李娜2,张德强3* . 氢化物发生-双道原子荧光光谱法同时测定中药中不同形态的砷和锑[J]. 光谱学与光谱分析, 2007, 27(04): 810-812.
YANG Li-li1,LI Na2,ZHANG De-qiang3*. Simultaneous Speciation Analysis of Arsenic and Antimony in Traditional Chinese Medicines by Hydride Generation-Double Channel Atomic Fluorescence Spectrometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(04): 810-812.
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