Hui-hui Hu

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This work describes a novel non-chromatographic approach for the accurate and selective determining As species by modified graphite electrode-based electrolytic hydride generation (EHG) for sample introduction coupled with atomic fluorescence spectrometry (AFS) detection. Two kinds of sulfydryl-containing modifiers, l-cysteine (Cys) and glutathione (GSH),(More)
A novel non-chromatographic speciation technique for ultra-trace arsenite [As(III)] and total arsenic (tAs) in Chinese herbal medicine (CHM) is developed and validated by electrolytic hydride generation (EHG) coupled with atomic fluorescence spectrometry (AFS). The studies show that As(III) can be converted efficiently to AsH3 on an L-cysteine modified(More)
The typical features of the coordinate and the curvature as well as the time information recorded were analyzed in the hand-written signatures. In the hand-written signature process 10 biometric features were summarized. The formulae of biometric features extraction were concluded. The Gauss function was used to draw the typical information from the(More)
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