DETERMINATION OF AFLATOXINS IN RICE AND MAIZE BY ULTRA-HIGH PERFORMANCE LIQUID CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY WITH ACCELERATED SOLVENT EXTRACTION AND SOLID-PHASE EXTRACTION
文献类型： 外文期刊
作者： Li, Cheng 1 ; Xie, Gang 2 ; Lu, Anxiang 1 ; Ping, Hua 1 ; Ma, Zhihong 1 ; Luan, Yunxia 1 ; Wang, Jihua 1 ;
作者机构： 1.Beijing Res Ctr Agrifood Testing & Farmland Monit, Beijing 100097, Peoples R China
2.Acad State Adm Grain, Beijing, Peoples R China
关键词： Accelerated solvent extraction; Aflatoxins; Maize; Rice; UPLC-MS/MS
期刊名称：ANALYTICAL LETTERS （ 影响因子：2.329； 五年影响因子：1.738 ）
ISSN： 0003-2719
年卷期： 2014 年 47 卷 9 期
页码：
收录情况： SCI
摘要： A fast and reliable ultra-high performance liquid chromatography-tandem mass spectrometry method was developed for the determination of aflatoxins B-1, B-2, G(1), and G(2) in cereal. The analytes were extracted by accelerated solvent extraction with methanol/water (80:20). A polymeric solid-phase extraction column was used for sample preparation. Under optimum conditions, the analyte recoveries for samples spiked at different concentration levels in rice and maize ranged from 71.2 to 94.0%, with relative standard deviations less than 16.4%. Limits of detection (signal-to-noise ratio, 3:1) for the aflatoxins ranged from 0.25 to 0.93 ng/g. The developed method was applied to the determination of aflatoxins in ten rice and maize samples. One maize sample tested positive with an aflatoxin B1 concentration of 2.7 ng/g.
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