Abstract:ObjectiveTo determine the contents of Hg and As in Rehmannia glutinosa Libosch from different habitats and different processing methods.MethodsHG-AFS was used.ResultsThe determination limit of Hg and As were 0.012 μg/L and 0.069 μg/L respectively. The linear range of Hg and As were 0~12 μg/L and 0~80 μg/L respectively. The determination results of 11 samples showed that the contents of Hg and As in Rehmannia glutinosa Libosch were in the safe clinic range. ConclusionThe method is simple, sensitive and reproducible. The contents of Hg and As in the samples of Rehmannia glutinosa Libosch are according with the international stantard.
Key words:Hydride Generation-Atomic Fluorescence; Rehmannia glutinosa Libosch; Hg; As