Tandem Mass SpectrometryMass SpectrometrySpectrometry, Mass, Electrospray IonizationChromatography, LiquidSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationChromatography, High Pressure LiquidProteomicsGas Chromatography-Mass SpectrometryProteomeInfant, NewbornNeonatal ScreeningMolecular Sequence DataAmino Acid SequencePeptidesSolid Phase ExtractionElectrophoresis, Gel, Two-DimensionalSpectrometry, Mass, Fast Atom BombardmentAnimals, NewbornSpectrometry, Mass, Secondary IonReproducibility of ResultsMolecular StructureReference StandardsTandem Repeat SequencesCalibrationMetabolism, Inborn ErrorsPeptide MappingLimit of DetectionIsotope LabelingSensitivity and SpecificityIonsSequence Analysis, ProteinProteinsIndicators and ReagentsDatabases, ProteinComplex MixturesPeptide FragmentsIndicator Dilution TechniquesDeuteriumDeuterium Exchange MeasurementChemical FractionationSubstance Abuse DetectionIsomerismTrypsinChromatography, Reverse-PhaseProtein Processing, Post-TranslationalCarbohydrate SequenceInfant, Newborn, DiseasesDried Blood Spot TestingIsotopesBiotransformationAlgorithmsBlood Specimen CollectionFourier AnalysisAtmospheric PressureMetabolomicsAcetonitrilesMagnetic Resonance SpectroscopyOxygen IsotopesGlucuronidesSoftwareCarnitineMicrochemistryProtein BindingElectrophoresis, Polyacrylamide GelAconitumCattleGasesPhosphopeptidesAnalytic Sample Preparation MethodsOxidation-ReductionOligosaccharidesDrug StabilityGlycosylationPaperGlycerophospholipidsElectrophoresis, CapillaryBiological MarkersPolysaccharidesCarbohydrate ConformationModels, MolecularDNA AdductsImmunoassayModels, ChemicalDrug ResiduesTime FactorsNanotechnologyChromatography, Thin LayerBase SequenceStereoisomerismMolecular WeightLysineChromatography, GasSpectroscopy, Fourier Transform InfraredBacterial ProteinsVeterinary DrugsAustralian Capital TerritoryHydrolysisCyclotronsBlood Chemical AnalysisBinding Sites