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Development and validation of a simple and fast method for simultaneous determination of aflatoxin B-1 and sterigmatocystin in grains

文献类型： 外文期刊

作者： Zhao, Yarong 1 ; Huang, Jianxiang 2 ; Ma, Liyan 1 ; Wang, Fuhua 2 ;

作者机构： 1.China Agr Univ, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China

2.Guangdong Acad Agr Sci, Publ Monitoring Ctr Agroprod, Guangzhou 510640, Guangdong, Peoples R China

3.Minist Agr, Key Lab Testing & Evaluat Agroprod Safety & Qual, Guangzhou 510640, Guangdong, Peoples R China

4.Minist Agr, Lab Qual & Safety Risk Assessment Agroprod Guangz, Guangzhou 510640, Guangdong, Peoples R China

5.Minist Agr, Lab Qual & Safety

关键词： Aflatoxin B-1;Sterigmatocystin;Grains;QuEChERS;LC-MS/MS

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： In this study, a simple, fast, sensitive and reliable method was developed for the simultaneous determination of aflatoxin B-1 (AFB(1)) and sterigmatocystin (STC) in rice, wheat, maize, oat, rye and barley grains based on a modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) method and liquid chromatography-tandem mass spectrometry (LC-MS/MS). AFB(1) and STC were extracted using 95% acetonitrile in water and cleaned up using N-Propylethane-1,2-diamine (PSA). The method was validated according to the SANCO/12571/2013 regulation of the European Union (EU). Recoveries at three spiked levels of 0.5, 2.5 and 5.0 mu g/kg ranged from 77.7% to 119.7% and the relative standard deviations (RSDs) were between 1.3% and 12.8%. Limits of detection (LOD) were 0.03 and 0.02 mu g/kg for AFB(1) and STC, respectively. The limit of quantification (LOQ) was 0.5 mu g/kg for both AFB(1) and STC. The proposed method was successfully applied to determine AFB(1) and STC levels in ten non-processed rice samples from Guangdong province in China. (C) 2016 Elsevier Ltd. All rights reserved.

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