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Solid-phase extraction of methadone enantiomers and benzodiazepines in biological fluids by two polymeric cartridges for liquid chromatographic analysis

Solvent ExtractionMedicineDrug PurityBioanalysisMethadone EnantiomersAnalytical ChemistryPolymeric CartridgesSolid-phase ExtractionLiquid ChromatographyChromatographic AnalysisPharmacologyChromatographyDrug Analysis