Analysis of Multiresidue Pesticides in Agricultural Paddy Soils Near Industrial Areas in Korea by GC–MS/MS and LC–MS/MS Using QuEChERS Extraction with dSPE Clean-Up

Pesticides have been used to control pests in agricultural fields and storage systems before circulating products markets. A tandem mass spectrometry, equipped with gas chromatographic separation (GC–MS/MS) or ultra-performance liquid (LC–MS/MS), was monitor residual pesticides Korean rice paddy soils. Selective multiple reaction monitoring employed during the analyses achieve multiresidue pesticide analysis using GC–MS/MS LC–MS/MS of 342 pesticides. In this study, QuEChERS extraction a dSPE clean-up establish an effective pretreatment process. The limit detection (LOD) quantification (LOQ) were set up for all pesticides, method validation performed linearity recovery at levels 10 50 mg kg?1 untreated soil sample. All satisfied acceptable range 70–120%, within less than 20% RSD values, except ametoctradin gibberellic acid. analyses, tricyclazole most frequently detectable pesticide, followed by oxadiazon, endosulfan, chlorantraniliprole. Continuous soils should be conducted due translocation some systemic from crop plants, impact on environment.