Abstract
A suitable extraction and purification method for the simultaneous liquid chromatography–mass spectrometry (LC–MS) determination of five mycotoxins, three type A, diacetoxyscirpenol (DAS), T-2 toxin (T-2) and HT-2 toxin (HT-2), and two type B-trichothecenes, deoxynivalenol (DON) and nivalenol (NIV), has been optimised using a modified “Quick Easy Cheap Effective Rugged and Safe” (QuEChERS) method. Different solvents were studied in the extraction procedure to obtain better recoveries, which ranged from 86 to 108%, using a 85/15 (v/v) mixture of methanol/acetonitrile. The values obtained for recovery, repeatability and reproducibility of the optimized method are in agreement with Commission Directive 2005/26/EC for methods of analysis of Fusarium toxins. Finally, this optimized procedure was applied in wheat flour samples commercialized in Spain.
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