期刊
FOOD CHEMISTRY
卷 291, 期 -, 页码 239-244出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2019.04.030
关键词
Aflatoxins; Matrix solid phase dispersion extraction; Deep eutectic solvents; Crops
资金
- Fund for Shanxi Key Subjects Construction
- Basic Research Project of Shanxi Province [2014011036_3]
A novel and sensitive deep eutectic solvent-based matrix solid phase dispersion (DES-MSPD) method for the determination of aflatoxins (AFB1, AFB2, AFG1, AFG2) in various crops was established using high-performance liquid chromatography with fluorescence detection (HPLC-FLD). The DES-MSPD sample preparation procedure was optimized. Based on the optimal conditions, the intra-day and inter-day variability for AFs in all crop samples was less than 7.5%. Linearity was observed with R-2 values ( > 0.994). Using the present method, HPLC-FLD gave the limits of detection (LODs) of 0.03-0.10 mu g/kg and the limits of quantification (LOQs) of 0.10-0.33 mu g/kg for AFs. This work represents the first attempt of using DESs as a green extraction medium for the extraction of AFs in MSPD. Compared with conventional MSPD methods, the DES-MSPD procedure looks promising as a relatively simple and low cost process to build an assay that can be used for monitoring concentrations of AFs in crops.
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