Mass SpectrometryTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryAutoanalysisChromatography, LiquidChromatography, High Pressure LiquidProteomicsSpectrometry, Mass, Secondary IonProteomeMolecular Sequence DataAmino Acid SequenceSpectrometry, Mass, Fast Atom BombardmentReproducibility of ResultsElectrophoresis, Gel, Two-DimensionalCalibrationCentrifugationReference StandardsSensitivity and SpecificityPeptidesBlood Chemical AnalysisDeuterium Exchange MeasurementIsotope LabelingIndicators and ReagentsMolecular StructurePeptide MappingIonsMagnetic Resonance SpectroscopyChemistry, ClinicalQuality ControlSolid Phase ExtractionProteinsDeuteriumCarbohydrate SequenceBody Mass IndexLimit of DetectionChromatography, GasSubstance Abuse DetectionPeptide FragmentsFourier AnalysisChromatography, Thin LayerMetabolomicsImmunoassayGasesHematologyMicrochemistryNephelometry and TurbidimetryAutomationCyclotronsProtein BindingProtein Processing, Post-TranslationalIsotopesAnalytic Sample Preparation MethodsSoftwareTrypsinElectrophoresis, CapillaryTime FactorsSpectrophotometry, AtomicMetabolomeAlgorithmsIndicator Dilution TechniquesElectrophoresis, Polyacrylamide GelPolysaccharidesCattleEvaluation Studies as TopicBiological MarkersBreath TestsGlycosylationSequence Analysis, ProteinPoint-of-Care SystemsMolecular WeightReference ValuesOligosaccharidesOxidation-ReductionCarbohydrate ConformationSpectrophotometry, UltravioletIsomerismChromatography, Reverse-PhaseKineticsForensic MedicineModels, MolecularComplex MixturesBiotransformationAutomation, LaboratoryOxygen IsotopesAtmospheric PressurePhotometryHydrogen-Ion ConcentrationHydrolysisRecombinant ProteinsSpectroscopy, Fourier Transform InfraredChemical FractionationUrinalysisBacterial ProteinsNanotechnologyDrug StabilityLasersBlood ProteinsSpecimen Handling