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Direct determination of codeine, norcodeine, morphine and normorphine with their corresponding O-glucuronide conjugates by high-performance liquid chromatography with electrochemical detection

Medicinal ChemistryBiochemistryCorresponding O-glucuronide ConjugatesElectrochemical DetectionMedicineBioanalysisNatural SciencesDrug PurityGas ChromatographyAnalytical ChemistryLiquid ChromatographyChemistryChromatographic AnalysisPharmacologyChromatographyHigh-performance Liquid ChromatographyDrug Analysis