期刊
FOOD CHEMISTRY
卷 159, 期 -, 页码 414-419出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2014.03.046
关键词
Fruit juice; Sample preparation; Arsenic; Selenium; Antimony; Hydride generation; ICP-OES
资金
- Polish Ministry of Science and Higher Education for the Faculty of Chemistry of Wroclaw University of Technology
Various sample preparation procedures for the simultaneous determination of As, Sb and Se in fruit juices by hydride generation inductively coupled plasma optical emission spectrometry (HG-ICP-OES) were examined. Applicability of total wet digestion with HNO3/H2O2, partial decomposition (solubilisation in aqua regia), 1:1 dilution with 2% (v/v) HNO3 and direct analysis were evaluated. Hydrides were generated in the reaction of an acidified sample with NaBH4 after pre-reduction with KI-ascorbic acid for total As and Sb, and boiling with HCl for total Se. Best results, i.e. limits of detection (LODs) of 0.51-0.73 ng mL(-1), precision (RSD) within 1.7-3.6% and recoveries for spiked samples between 101% and 106% were found using aqua regia treatment. This procedure simplifying and improving sample preparation step prior to As, Sb and Se measurements in fruit juices by HG-ICP-OES, thus could be adequate for the routine analysis in terms of the quality control of these drinks. (C) 2014 Elsevier Ltd. All rights reserved.
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