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Determination of pesticide recovery rates from spiked fruit and vegetables using QuEChERS extraction with bead mill homogenization
The comminution step in sample prep is critical for the effectiveness of the QuEChERS method, a type of dSPE, for the multiple pesticide extraction and detection. We evaluate the robustness of bead milling in 50 mL tubes for rapid homogenization of various types of certified organic produce, such as strawberries, soybeans, and apples spiked with 17 component pesticide standards at 100 ppb. Full homogenization by visual inspection was achieved in 30 seconds for all assayed samples of varying density with implemented settings. Pesticides were then extracted and analyzed by GC-MS for % recovery.
For research use only. Not for use in diagnostic procedures.
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Determination of pesticide recovery rates from spiked fruit and vegetables using QuEChERS extraction with bead mill homogenization