Arsenic speciation in mushrooms using dimensional chromatography coupled to ICP-MS detector
文献类型： 外文期刊
作者： Komorowicz, Izabela 1 ; Hanc, Anetta 1 ; Lorenc, Wiktor 1 ; Baralkiewicz, Danuta 1 ; Falandysz, Jerzy 2 ; Wang, Yua 1 ;
作者机构： 1.Adam Mickiewicz Univ, Fac Chem, Dept Trace Element Anal Spect Methods, 89b Umultowska St, PL-61614 Poznan, Poland
2.Gdansk Univ, Environm Chem & Ecotoxicol, 63 Wita Stwosza Str, PL-80308 Gdansk, Poland
3.Univ Cartagena, Sch Pharmaceut Sci, Environm & Computat Chem Grp, Zaragocilla Campus, Cartagena 130015, Colombia
4.Yunnan Acad Agr Sci, Inst Med Plants, Kunming 650200, Yunnan, Peoples R China
关键词： Arsenic speciation; Mushroom; Extraction; IC/ICP-DRC-MS; SEC-UV-Vis/ICP-DRC-MS
期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）
ISSN： 0045-6535
年卷期： 2019 年 233 卷
页码：
收录情况： SCI
摘要： This study concerns total arsenic (TAs) and arsenic species determination in three species of mushrooms collected in Yunnan, China. The purpose of this study was to check concentration level of arsenic in Boletus edulis, Tricholoma matsutake and Suillellus luridus, estimate arsenic bioaccessibility and find out which arsenic species occur in mushrooms to assess if they may pose a threat to human health. An analytical methodology based on ion chromatography (IC) hyphenated to inductively coupled plasma mass spectrometry (ICP-MS) with dynamic reaction cell (DRC) and size exclusion chromatography (SEC) with UV-Vis detection and ICP-DRC-MS detection. Ultrasound assisted extraction (UAE), microwave assisted extraction (MAE) and enzymatic assisted extraction (EAE) were applied. Quantification of As species in extracts was performed by IC/ICP-DRC-MS in the first dimension. Slightly better extraction efficiencies were obtained for MAE (from 75% to 90%) then for UAE. EAE was used for estimation of bioaccessibility by application of a modified BARGE bioaccessibility method (UBM) for in vitro studies. Bioaccessibility values were in the ranges of 73%-102%, 74%-115% and 18%-87% for step 1 (S1), for step 2 (52) and for step 3 (S3) of EAE, respectively. Extracts obtained after EAE were subjected to SEC-UV-Vis/ICP-DRC-MS analysis as the second dimension. The main signal was obtained in the area of a molecular mass of similar to 5 kDa for all mushroom extracts. Monitoring of an (SO+)-S-50 ion confirmed that this signal comes from As-protein. In sample of Boletus edulis additional signal occurred which is classified as unknown As- compound. Both signals require identification with another analytical technique. (C) 2019 Elsevier Ltd. All rights reserved.
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