Tandem Mass SpectrometryChromatography, LiquidMass SpectrometryChromatography, High Pressure LiquidSpectrometry, Mass, Electrospray IonizationSolid Phase ExtractionProteomicsLimit of DetectionCalibrationEphedraReference StandardsCardiidaeReproducibility of ResultsAcetonitrilesAlkanesulfonic AcidsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationAnalytic Sample Preparation MethodsChromatography, Reverse-PhaseGlucuronidesProteomeGas Chromatography-Mass SpectrometryCorydalisDrug StabilityBiotransformationLeast-Squares AnalysisSensitivity and SpecificityWaste WaterMicrosomes, LiverIsotope LabelingMolecular Sequence DataAmino Acid SequenceIndicators and ReagentsBuprenorphineElectrophoresis, Gel, Two-DimensionalDNA AdductsMolecular StructureArea Under CurveLinear ModelsPeptidesIndicator Dilution TechniquesBiological MarkersImmunoassayAdministration, OralElectrophoresis, Polyacrylamide GelQuality ControlSubstance Abuse DetectionChemical FractionationRats, Sprague-DawleyChromatography, AffinityBrain ChemistryProteinsTime FactorsProtein BindingHepatocytesFluorocarbonsLiverChromatography, GasCytochrome P-450 Enzyme SystemChromatography, Ion ExchangeChromatography, GelEnvironmental MonitoringCell Line, TumorChromatographyChromatography, Thin LayerDogsDose-Response Relationship, DrugPregnancySpectrometry, Mass, Fast Atom BombardmentOxidation-ReductionBiological AvailabilityCell LineSpectrometry, Mass, Secondary IonPeptide MappingGlutathioneMolecular WeightSpectrophotometry, UltravioletPeptide FragmentsMagnetic Resonance SpectroscopyCarbohydrate SequenceBrainTrypsinNeonatal ScreeningIonsIonic LiquidsCattleIsomerismAmino AcidsKineticsMicrochemistryMice, Inbred C57BLOligosaccharidesDeuterium Exchange MeasurementDeuteriumMetabolomicsComplex MixturesSequence Analysis, ProteinProtein Processing, Post-TranslationalMetabolism, Inborn ErrorsStereoisomerismTandem Repeat Sequences