Abstract
QuEChERS combined with ultra-high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) was developed to analyze multi-class mycotoxins including aflatoxins, ochratoxins, and Alternaria toxins in apples and tomatoes. Using apples and tomatoes as the research models, the method performance had been evaluated, showing great convenience, high sensitivity, and good reliability. The limit of detections was of 0.05–20 μg/L. The average recovery values were from 71.3 to 119.4%. With respect to precision, the repeatability was lower than 14.4%. With the optimum method, risk monitoring of mycotoxins in fresh and stored apples and tomatoes was executed, which indicated the risk of contamination of Alternaria toxins in apples which were preserved over a period of time.
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