Tandem Mass SpectrometryMass SpectrometrySpectrometry, Mass, Electrospray IonizationChromatography, LiquidIonsChromatography, High Pressure LiquidSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationProteomicsSensitivity and SpecificityGas Chromatography-Mass SpectrometryProteomeMolecular Sequence DataAmino Acid SequencePeptidesCyclotronsFourier AnalysisReproducibility of ResultsGasesTandem Repeat SequencesCalibrationSolid Phase ExtractionReference StandardsAtmospheric PressureSpectrometry, Mass, Secondary IonIsotope LabelingPeptide MappingComplex MixturesMolecular StructureElectrophoresis, Gel, Two-DimensionalSpectrometry, Mass, Fast Atom BombardmentLimit of DetectionProteinsNeonatal ScreeningIndicators and ReagentsSequence Analysis, ProteinDatabases, ProteinOxygen IsotopesChromatography, Reverse-PhaseTrypsinElementsDeuteriumSpectroscopy, Fourier Transform InfraredAlgorithmsMicrochemistryPeptide FragmentsIsomerismPhosphopeptidesMetabolism, Inborn ErrorsNanotechnologyIsotopesSoftwareProtein Processing, Post-TranslationalSubstance Abuse DetectionSpacecraftChemical FractionationAnalytic Sample Preparation MethodsDeuterium Exchange MeasurementElectrophoresis, CapillaryCattleMetabolomicsSaturnCarbohydrate SequenceIndicator Dilution TechniquesForensic MedicineElectronsEquipment DesignDrug StabilityNitrogen IsotopesMyoglobinModels, ChemicalChromatography, GasMagnetic Resonance SpectroscopyMetabolomeDried Blood Spot TestingLiquid-Liquid ExtractionMolecular WeightSolid Phase MicroextractionBiotransformationElectrophoresis, Polyacrylamide GelGlycosylationHorsesOligosaccharidesEvolution, PlanetaryCarbon IsotopesProtein BindingOxidation-ReductionFullerenesTime FactorsBiological MarkersHydrogenLasersAutomationModels, MolecularStereoisomerismAcetonitrilesPolysaccharidesGlucuronidesBlood Specimen CollectionEquipment Failure AnalysisAconitum