Mass SpectrometryTandem Mass SpectrometryChromatography, High Pressure LiquidChromatography, LiquidSpectrometry, Mass, Electrospray IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryProteomicsMolecular Sequence DataChromatography, AffinityAmino Acid SequenceChromatography, GasChromatography, Ion ExchangeChromatography, GelProteomeChromatography, Thin LayerChromatographyPeptidesTandem Repeat SequencesSpectrometry, Mass, Fast Atom BombardmentSpectrometry, Mass, Secondary IonReference StandardsReproducibility of ResultsChromatography, Reverse-PhaseCalibrationSolid Phase ExtractionElectrophoresis, Gel, Two-DimensionalMolecular StructureMolecular WeightPeptide MappingLimit of DetectionElectrophoresis, Polyacrylamide GelSensitivity and SpecificitySpectrophotometry, UltravioletIsotope LabelingPeptide FragmentsIndicators and ReagentsMagnetic Resonance SpectroscopyCarbohydrate SequenceIonic LiquidsProteinsTrypsinChemical FractionationIonsCattleKineticsBody Mass IndexIsomerismDrug StabilityAmino AcidsBiotransformationAcetonitrilesMicrochemistryOligosaccharidesDeuterium Exchange MeasurementMetabolomicsProtein BindingSubstance Abuse DetectionSequence Analysis, ProteinDeuteriumStereoisomerismProtein Processing, Post-TranslationalComplex MixturesHydrolysisBase SequenceOxidation-ReductionHydrogen-Ion ConcentrationSubstrate SpecificityPolysaccharidesNeonatal ScreeningGlycosylationTime FactorsCarbohydrate ConformationRecombinant ProteinsEscherichia coliFourier AnalysisBacterial ProteinsIndicator Dilution TechniquesDatabases, ProteinIsotopesElectrophoresis, CapillaryAlgorithmsPlant ExtractsBinding SitesAnalytic Sample Preparation MethodsLiquid CrystalsChromatography, DEAE-CelluloseSequence Homology, Amino AcidGlucuronidesLiverChemistry Techniques, AnalyticalMetabolomeBiological MarkersCarbohydratesAtmospheric PressureModels, MolecularBrain ChemistryMicrosomes, LiverOxygen IsotopesMetabolism, Inborn Errors