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Determination of urapidil and its metabolites in human serum and urine: comparison of liquid—liquid and fully automated liquid—solid extraction

UrologySeparation ScienceMedicineDrug PurityBioanalysisMass SpectrometryLaboratory MedicineDrug TestAnalytical ChemistryLiquid ChromatographyClinical ChemistryHuman SerumLiquid—solid ExtractionPharmacologyChromatographic AnalysisChromatographyDrug Analysis