Gas Chromatography-Mass SpectrometryMass SpectrometryChromatography, GasChromatography, LiquidChromatography, High Pressure LiquidTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationVolatile Organic CompoundsSolid Phase MicroextractionMetabolomicsMetabolomeSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationOrganic ChemicalsPerianal GlandsOils, VolatileChromatography, Thin LayerVolatilizationOcimum basilicumMagnetic Resonance SpectroscopySubstance Abuse DetectionAndrostenediolsMolecular StructureAcetic AnhydridesChemistry, OrganicCarboxylic AcidsDeuteriumMeconiumEvolution, ChemicalDoping in SportsF2-IsoprostanesFatty AcidsOrganic Chemistry PhenomenaStereoisomerismBiotransformationMolecular Sequence DataOxidation-ReductionGasesReproducibility of ResultsProteomicsHydroxyeicosatetraenoic AcidsExobiologyBiogenesisMeteoroidsUrinalysisCarbohydrate SequenceEstersQuality ControlCarbohydrate ConformationAmino Acid SequenceMethylationSteroidsSensitivity and SpecificityWater Pollutants, ChemicalKineticsLipoxygenasePolycyclic Hydrocarbons, AromaticHydrolysisProteomeChemistryChemical PhenomenaBiological MarkersArachidonic AcidsArachidonic AcidCattleCalibrationTime FactorsLiverIsotope LabelingChromatography, AffinitySpectrometry, Mass, Secondary IonCytochrome P-450 Enzyme SystemFatty Acids, UnsaturatedSolventsDinoprostChromatography, Ion ExchangeReference StandardsHexanesLimit of DetectionPeptidesSpectrometry, Mass, Fast Atom BombardmentElectrophoresis, Gel, Two-DimensionalModels, MolecularChromatographyEucommiaceaeChromatography, GelWaterLipid MetabolismProteinsModels, ChemicalPentanesChromatography, Reverse-Phase8,11,14-Eicosatrienoic AcidSolid Phase ExtractionOligosaccharidesBreath TestsCarbon IsotopesProtein BindingReference ValuesRhodiolaMolecular Weight