Gas Chromatography-Mass SpectrometryMass SpectrometryChromatography, High Pressure LiquidChromatography, LiquidTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationChromatography, GasSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationChromatography, Thin LayerChromatography, AffinityChromatography, Ion ExchangeChromatography, GelChromatographyMetabolomicsMolecular Sequence DataMagnetic Resonance SpectroscopyProteomicsVolatile Organic CompoundsMetabolomeSolid Phase MicroextractionAmino Acid SequenceChromatography, Reverse-PhaseBiotransformationReproducibility of ResultsMolecular StructureCalibrationReference StandardsProteomeCarbohydrate SequenceIsotope LabelingLimit of DetectionMolecular WeightEucommiaceaeIonic LiquidsSpectrophotometry, UltravioletSubstance Abuse DetectionDeuteriumElectrophoresis, Polyacrylamide GelSensitivity and SpecificityPerianal GlandsFatty AcidsKineticsVolatilizationPeptidesOligosaccharidesMeconiumCarbohydrate ConformationOxidation-ReductionOils, VolatileCattleStereoisomerismMicrosomes, LiverMethanolChemistryChemical PhenomenaHydrolysisMethylationPentanesOcimum basilicumDoping in SportsAmino AcidsElectrophoresis, Gel, Two-DimensionalPeptide FragmentsAndrostenediolsSugar AcidsSolid Phase ExtractionAcetic AnhydridesLiverBileHydroxyeicosatetraenoic AcidsWater PollutantsPlant ExtractsTerphenyl CompoundsGlucuronidesSpectrometry, Mass, Fast Atom BombardmentHydrogen-Ion ConcentrationSpectrometry, Mass, Secondary IonSugar AlcoholsF2-IsoprostanesTime FactorsCarboxylic AcidsLiquid CrystalsQuality ControlIsotopesPolysaccharidesIndicator Dilution TechniquesFungicides, IndustrialSulfur CompoundsCytochrome P-450 Enzyme SystemIndicators and ReagentsSubstrate SpecificityChromatography, DEAE-CelluloseDisaccharidesPhenolsCarbon RadioisotopesIonsPeptide MappingEstersHydroxylationEscherichia coli