Spectrometry, Mass, Electrospray IonizationAtmospheric PressureMass SpectrometryPhenindioneTandem Mass SpectrometryChromatography, LiquidChromatography, High Pressure LiquidSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryAir IonizationMolecular StructureIonsCyclotronsMolecular Sequence DataCalibrationGasesAmino Acid SequenceSpectrometry, Mass, Fast Atom BombardmentFourier AnalysisGlycerophospholipidsSpectrometry, Mass, Secondary IonReproducibility of ResultsReference StandardsDeuteriumSensitivity and SpecificityProteomicsIndicators and ReagentsComplex MixturesCarbohydrate SequencePeptidesLimit of DetectionElectrophoresis, CapillarySolid Phase ExtractionIsomerismDeuterium Exchange MeasurementMagnetic Resonance SpectroscopySolventsNanotechnologyModels, ChemicalProteomeProteinsPeptide MappingMicrochemistryHydrogen-Ion ConcentrationMyoglobinSubstance Abuse DetectionSolutionsOligosaccharidesElectrophoresis, Gel, Two-DimensionalMolecular WeightSpectroscopy, Fourier Transform InfraredMetals, AlkaliHydrogenMetabolomicsExplosive AgentsPeptide FragmentsFlame IonizationChromatography, Reverse-PhaseTrypsinBenzyl AlcoholsModels, MolecularSpectrophotometry, UltravioletProtein ConformationPolysaccharidesAcetonitrilesOxidation-ReductionCapillary ActionElectrochemistryCarbohydrate ConformationForensic SciencesCrown EthersHydrolysisPlasmalogensDrug StabilityIsotope LabelingChromatography, Thin LayerAnalytic Sample Preparation MethodsStereoisomerismMetalsChemistry Techniques, AnalyticalGlycerylphosphorylcholineProtein BindingKineticsCattleMolecular ConformationSulfoglycosphingolipidsGlycosylationPhospholipidsLipidsBinding SitesMethanolDisulfidesHorsesForensic MedicineOligonucleotidesMonosaccharidesElectrophoresis, Polyacrylamide GelCysteineCapillary ElectrochromatographyChemical Fractionation