Analysis of Pesticide Residues in Apples Using Agilent SampliQ QuEChERS AOAC Kit by LC–MS-MS Detection
Based on the QuEChERS AOAC Official Method 2007.01, sixteen pesticides were used for evaluating the performance of the Agilent's AOAC Buffered Extraction and SampliQ QuEChERS Dispersive SPE kits for General Fruits and Vegetables. Apple was selected as the fruit matrix. The pesticides are from the "representative pesticides" list (1). A method working well for these representative pesticides should work equally well for the other pesticides that are routinely monitored in multi-class, multi-residue methods. The compounds are from nine different pesticide classes: including acidic, basic, neutral, base-sensitive, and acid-labile pesticides. The selected pesticides are suitable for LC–MS-MS analysis. The MRLs of these pesticides have been set at 10 ng/g or higher (2–4).