[Hydride generation-AFS determination of trace arsenic, antimony, selenium and mercury in Chinese herbal medicine in Qinghaixizang plateau].
In this paper, a hydride generation non-dispersive atomic fluorescence spectrometry method has been developed for the determination of trace arsenic, antimony, selenium and mercury in Chinese herbal medicine in Qinghai-Xizang plateau. Under the optimum condition, the quantities of fourteen interference elements are below certain non-interferent limits. The detection limits were as follow (g/mL): As 1.3, Sb 0.39, Se 0.24 and Hg 0.44. The relative standard deviation of 9 determination was As 2.4-4.2%, Sb 2.5-5.6%, Se 3.1-5.0% and Hg 3.8-5.9%. The recovery of four elements was 94.7-105.4%. This method is simple, rapid, sensitive and accurate, and has been successfully tested with As, Sb, Se and Hg in more than 20 kinds of Chinese herbal medicine in Qinghai-Xizang plateau.
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Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining.
D000965:Antimony / Q000032:analysis*; D001151:Arsenic / Q000032:analysis*; D002681:China; D003024:Clozapine / Q000031:analogs & derivatives* / Q000032:analysis; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D057230:Limit of Detection; D008628:Mercury / Q000032:analysis*; D012643:Selenium / Q000032:analysis*; D013054:Spectrophotometry, Atomic
D004365:Drugs, Chinese Herbal; C094038:seleptin; D000965:Antimony; D008628:Mercury; D012643:Selenium; D003024:Clozapine; D001151:Arsenic