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Novel fiber coated with β-cyclodextrin derivatives used for headspace solid-phase microextraction of ephedrine and methamphetamine in human urine

Human Urineβ-Cyclodextrin DerivativesEngineeringExcipientsMedicineCyclodextrin ProductionMicro-encapsulationPharmaceutical TechnologyAnalytical ChemistryBiomedical EngineeringNovel FiberDrug Delivery SystemPharmacologyChromatographyDrug Analysis