title: Speciation analysis of arsenic in traditional Chinese medicines by hydride generation-atomic fluorescence spectrometry.
abstract: A method has been described for the determination of arsenic species (arsenite and arsenate) by hydride generation-atomic fluorescence spectrometry (HG-AFS). The experimental conditions that influence the fluorescence intensity and the reduction of arsenic were investigated and optimized, and the influences from foreign ions and their elimination were studied. The detection limit was found to be 79.7 ng L(-1). The proposed method was applied to the determination of arsenic species in water leachate of traditional Chinese medicines with a recovery range of 91.1-109.5%.
authors.affiliation: College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, P.R. China.
authors.forename: Li-li
authors.initials: LL
authors.lastname: Yang
authors.forename: Li-rong
authors.initials: LR
authors.lastname: Gao
authors.forename: De-qiang
authors.initials: DQ
authors.lastname: Zhang
mesh_terms: D001151:Arsenic / Q000032:analysis* / Q000737:chemistry; D001894:Borohydrides / Q000737:chemistry; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D006851:Hydrochloric Acid / Q000737:chemistry; D007202:Indicators and Reagents; D008567:Membranes, Artificial; D012015:Reference Standards; D013050:Spectrometry, Fluorescence; D013054:Spectrophotometry, Atomic
chemical_list: D001894:Borohydrides; D004365:Drugs, Chinese Herbal; D007202:Indicators and Reagents; D008567:Membranes, Artificial; C028371:potassium borohydride; D001151:Arsenic; D006851:Hydrochloric Acid