简介：Theobjectivesofthisstudyweretooptimizeinstrumentalparametersandconditionsforanalysisofselectedorganophosphoruspesticides(OPPs)bygaschromatography(GC)withnitrogen-phosphorusdetection(NPD)(GC-NPD);toselectanappropriatesolventsystem;toconductacomparisonofsonicationandshakingextractions;andtoselectanappropriateprocedureforextractingorganophosphoruspesticidesfromsoils.ProcedureⅠconsistedofn-hexaneorpetroleumethertogetherwithacetoneusedassolvents,whileProcedureⅡcontainedseveralsolventsincludingacetone,methanol,dichloromethane,andn-hexaneorpetroleumether.Experimentalresultsindicatedthatamixtureofpetroleumether/acetone(2:1,v/v)couldbeusedinplaceofn-hexane/acetone(2:1,v/v)asitwasalessexpensivesolventsystem.Inaddition,shakingunderawaterbathat20℃wasmoreeffectivethansonication.Also,ProcedureⅠwasmoreeffective,safer,andmoretimesavingthanProcedureⅡ.ProcedureIwasappliedtothreesoiltypesofdifferentorganicmattercontent,withrecoveriesoftheOPPsfromtheyellow-brownsoils,whichhadahigherorganicmattercontent,beinglowerthanthosefromtheyellowandredsoils.