[Speciation analysis of arsenic in traditional Chinese medicines by hydride generation-atomic fluorescence spectrometry with ion exchange resin separation].
A method for the determination of arsenic species (arsenide, arsenate) in traditional Chinese medicines using hydride generation atomic fluorescence spectrometry (HG-AFS) with ion exchange resin separation has been studied. The ion exchange resin was used to separate the arsenide and arsenate, and the separation conditions were investigated. The experimental conditions that influence the fluorescence intensity and the reduction of arsenic(V) were investigated and optimized, and the influence of foreign ions and its elimination were studied. The proposed method was applied to the determination of arsenic species in water leachate of traditional Chinese medicines. A detection limit of 89.1 ng x mL(-1) and a recovery range of 91.1%-109.3% were obtained.
Yang
Li-li
LL
College of Chemistry, Hebei Normal University, Shijiazhuang 050016, China.
Gao
Li-rong
LR
Zhang
De-qiang
DQ
D001149:Arsenates / Q000032:analysis; D001151:Arsenic / Q000032:analysis*; D019411:Clinical Laboratory Techniques; D004365:Drugs, Chinese Herbal; D017022:Flow Injection Analysis; D007475:Ion Exchange Resins; D057230:Limit of Detection; D008516:Medicine, Chinese Traditional / Q000009:adverse effects*; D012015:Reference Standards; D012989:Soil Pollutants / Q000032:analysis; D013050:Spectrometry, Fluorescence
D001149:Arsenates; D004365:Drugs, Chinese Herbal; D007475:Ion Exchange Resins; D012989:Soil Pollutants; D001151:Arsenic; C025657:arsenic acid