Abstract
A method for the rapid analysis of multiresidual pesticides in agricultural products using gas chromatography-mass spectrometry (GC/MS) was introduced. The matrix solid-phase dispersion (MSPD) technique with slight modification was employed to minimize the matrix interferences. To calculate the recovery, 97 target pesticides were spiked into a range of foods including potato, cabbage, carrot, apple, orange, cucumber, and rice. The combination of the MSPD technique and the GC/MS for the analysis of 97 pesticides can be accomplished within 90 min for each sample. Most pesticides were recovered in the range of 70%–120% with relative standard deviation (RSD) usually less than 10%. The results demonstrated that the method could be successfully applied to a broad range of target pesticides in a diverse range of foods.
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