Determination of U, Th and Tl in Fourteen Chinese Traditional Medicines by Microwave Digestion-ICP-MS
SUN Wei-min1,XUE Da-fang2,LI Hong1,LIU Hui1,TENG Wen-feng1*
1. The Laboratory Medical College, Dalian Medical University, Dalian 116044, China 2. Technical Center, Liaoning Administration for Entry Exit Inspection and Quarantine, Dalian 116000, China
Abstract：Fourteen Chinese traditional medicines were digested by microwave digestion, which are generally applied to treat tumor in clinic, and the contents of U, Th and Tl in the fourteen Chinese traditional medicines were determined by inductively coupled plasma mass spectrometry (ICP-MS), and the results show that the change ranges of the elements contents were: 0.005 153-0.153 4 μg·g-1 for U;0.035 01-0.462 8 μg·g-1 for Th;0.001 43-1.600 μg·g-1 for Tl. The contents of U, Th and Tl in the fourteen Chinese traditional medicines were low, and not with one accord. The determination results of the fourteen Chinese traditional medicines were analyzed by SPSS 11.5, and the results show that there were not significant deviations(p＞0.05) of the contents of U, Th and Tl between the medicine of treating the toxifying disease with poisonous agents and the medicines of heat-clearing. The study indicates that inductively coupled plasma mass spectrometry (ICP-MS) is a quick, accurate, sensitive method to determine the contents of U, Th and Tl in Chinese traditional medicine, and the results of this study provide reference data for using Chinese traditional medicine safely in clinic and developing Chinese traditional medicine.
Key words：Inductively coupled plasma mass spectrometry;Chinese traditional medicine;U;Th;Tl
孙卫民1,薛大方2,李红1,刘辉1,滕文锋1* . ICP-MS分析14种中药铀、钍、铊含量[J]. 光谱学与光谱分析, 2009, 29(01): 256-258.
SUN Wei-min1,XUE Da-fang2,LI Hong1,LIU Hui1,TENG Wen-feng1*. Determination of U, Th and Tl in Fourteen Chinese Traditional Medicines by Microwave Digestion-ICP-MS. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(01): 256-258.
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