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Updated: Aug 17, 2026

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
Published on: September 1, 2017
Simultaneous determination of arsenic and selenium in biological samples by HG-AFS
Hanwen Sun1, Zhanfeng Liu, Wenjuan Wu
1Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, P.R. China, hanwen@mail.hbu.edu.cn.
Abstract:
A new method is proposed for simultaneous determination of traces of arsenic (As) and selenium (Se) in biological samples by hydride-generation double-channel non-dispersive atomic-fluorescence spectrometry (HG-AFS) from tartaric acid media. The effects of analytical conditions on fluorescence signal intensity were investigated and optimized. Interferences from coexisting ions were evaluated. Under optimum conditions linear response ranges above 20 microg L(-1) for As and 32 microg L(-1) for Se were obtained with detection limits of 0.13 and 0.12 microg L(-1), respectively. The precision for eleven-fold determination of As at the 4 microg L(-1) level and of Se at the 8 microg L(-1) level were 2.7 and 1.9% (RSD), respectively. Recoveries of 92.5-95.5% for As and 101.2-108.4% for Se were obtained for four biological samples and two certified biological reference materials. The proposed method has the advantages of simple operation, high sensitivity, and high efficiency; it was successfully used for simultaneous determination of As and Se in biological samples.
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