Spectrometry, Mass, Electrospray IonizationMass SpectrometryTandem Mass SpectrometryChromatography, LiquidIonsChromatography, High Pressure LiquidPhenindioneProteomicsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationFourier AnalysisPeptidesMolecular Sequence DataAmino Acid SequenceProteomeSpectroscopy, Fourier Transform InfraredIsotope LabelingGas Chromatography-Mass SpectrometryGasesReproducibility of ResultsPhosphopeptidesProteinsComplex MixturesGlycopeptidesMolecular StructureAtmospheric PressureNanotechnologySensitivity and SpecificityIndicators and ReagentsCalibrationIsomerismDeuteriumInfrared RaysAir IonizationCyclotronsReference StandardsElectronsEnkephalin, LeucineHybrid CellsCarbohydrate SequenceSpectrometry, Mass, Secondary IonLimit of DetectionSolid Phase ExtractionModels, ChemicalPeptide MappingMyoglobinTrypsinSpectrometry, Mass, Fast Atom BombardmentMagnetic Resonance SpectroscopyGlycerophospholipidsProtonsPeptide FragmentsModels, MolecularCattleOligosaccharidesMetabolomicsElectrophoresis, Gel, Two-DimensionalElectrochemistryElectrophoresis, CapillaryMolecular WeightSpectroscopy, MossbauerHydrogen-Ion ConcentrationEquipment DesignCarbohydrate ConformationSequence Analysis, ProteinPolysaccharidesDisaccharidesStereoisomerismSubstance Abuse DetectionGlycosylationSolventsOxygen IsotopesDeuterium Exchange MeasurementChromatography, Reverse-PhaseDoping in SportsHorsesKineticsProtein ConformationSulfoglycosphingolipidsMicrochemistrySolutionsOxidation-ReductionAlgorithmsPharmaceutical PreparationsTime FactorsCationsGlycosidesSydnonesHybridization, GeneticMolecular ConformationProtein Processing, Post-TranslationalBinding SitesMetals, AlkaliHydrogenChemical Warfare AgentsMiniaturizationDrug StabilityMetalsProtein BindingEquipment Failure AnalysisFractionation, Field Flow