Mass SpectrometryTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationChromatography, High Pressure LiquidSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationChromatography, LiquidGas Chromatography-Mass SpectrometryChromatography, AffinityChromatography, GasChromatography, GelChromatographyChromatography, Ion ExchangeProteomicsChromatography, Thin LayerMolecular Sequence DataAmino Acid SequenceSpectrometry, Mass, Secondary IonProteomeSpectrometry, Mass, Fast Atom BombardmentMolecular WeightElectrophoresis, Gel, Two-DimensionalElectrophoresis, Polyacrylamide GelPeptidesMolecular StructureReproducibility of ResultsIsotope LabelingPeptide MappingReference StandardsMagnetic Resonance SpectroscopyCalibrationCarbohydrate SequenceChromatography, Reverse-PhaseDeuterium Exchange MeasurementSolid Phase ExtractionPeptide FragmentsLimit of DetectionSensitivity and SpecificityKineticsChromatography, DEAE-CelluloseProteinsCattleTrypsinIndicators and ReagentsAmino AcidsDeuteriumProtein BindingOligosaccharidesIonsMetabolomicsSpectrophotometry, UltravioletChromatography, AgaroseSubstance Abuse DetectionPolysaccharidesChemical FractionationSubstrate SpecificityBody Mass IndexHydrogen-Ion ConcentrationCarbohydrate ConformationRecombinant ProteinsHydrolysisGlycosylationEscherichia coliProtein Processing, Post-TranslationalFourier AnalysisIsomerismOxidation-ReductionMicrochemistryAnalytic Sample Preparation MethodsCarbohydratesBiotransformationMetabolomeBacterial ProteinsIsotopesCyclotronsDrug StabilityChemistryBinding SitesChemical PhenomenaElectrophoresis, CapillaryTime FactorsStereoisomerismModels, MolecularSequence Analysis, ProteinBase SequenceAcetonitrilesSequence Homology, Amino AcidComplex MixturesChromatography, PaperChemistry Techniques, AnalyticalLiverIsoelectric FocusingIndicator Dilution TechniquesFatty AcidsProtein ConformationMethylationBiological MarkersOxygen IsotopesTemperatureBlood ProteinsForensic Medicine