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Simultaneous determination of organophosphorus, organochlorine, pyrethriod and carbamate pesticides in Radix astragali by microwave-assisted extraction/dispersive-solid phase extraction coupled with GC–MS

Solvent ExtractionEnvironmental ChemistryEngineeringPesticide-residue AnalysisRadix AstragaliEnvironmental EngineeringEnvironmental Analytical ChemistryToxicologyAnalytical ChemistryEcotoxicologyCarbamate PesticidesEnvironmental ToxicologyChemistrySimultaneous DeterminationMedicineChemical ContaminantChromatographyDrug Analysis