PMID- 35229913 OWN - NLM STAT- MEDLINE DCOM- 20220517 LR - 20220517 IS - 1097-0231 (Electronic) IS - 0951-4198 (Linking) VI - 36 IP - 12 DP - 2022 Jun 30 TI - Modification and validation of the simultaneous detection of 38 pesticide residues method by ultra-high-performance liquid chromatography/tandem mass spectrometry with QuEChERS extraction in different oil crops and products. PG - e9284 LID - 10.1002/rcm.9284 [doi] AB - RATIONALE: Oil crops and products are important food materials in daily life. Pesticide residues in food could directly and indirectly endanger human health. However, the method for detecting multiple pesticides simultaneously is limited. In this study, an easy and efficient method for the simultaneous determination of 38 pesticides in oil crops and products was established and validated. METHODS: All samples were treated with a modified QuEChERS procedure followed by ultra-high-performance liquid chromatography/tandem mass spectrometry (UHPLC/MS/MS) analysis. Mass spectrometry was performed in positive and negative ion electrospray ionization mode. The mobile phase consisted of 0.1% formic acid in water and 0.1% formic acid in acetonitrile. The column used was a Poroshell 120 EC-C18 and the flow rate was 0.3 mL/min. RESULTS: The method was validated so that the calibration curves for all pesticides had good linearity in the concentration range of 10-1000 mug/L with correlation coefficients (R(2) ) above 0.9945. The recovery rates were between 70.1 and 120.0%, with relative standard deviations (RSDs) (n = 6)