Gas Chromatography-Mass SpectrometryMass SpectrometryChromatography, GasChromatography, LiquidChromatography, High Pressure LiquidVolatile Organic CompoundsSolid Phase MicroextractionSpectrometry, Mass, Electrospray IonizationTandem Mass SpectrometryMetabolomicsMetabolomePerianal GlandsOils, VolatileVolatilizationOcimum basilicumChromatography, Thin LayerAndrostenediolsSubstance Abuse DetectionAcetic AnhydridesMeconiumDeuteriumMagnetic Resonance SpectroscopyDoping in SportsF2-IsoprostanesSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationFatty AcidsGasesBiotransformationCarboxylic AcidsHydroxyeicosatetraenoic AcidsReproducibility of ResultsUrinalysisQuality ControlOxidation-ReductionEstersMolecular StructureSteroidsMolecular Sequence DataProteomicsCarbohydrate SequenceMethylationSensitivity and SpecificityCarbohydrate ConformationWater Pollutants, ChemicalLipoxygenasePolycyclic Hydrocarbons, AromaticStereoisomerismChemistryChemical PhenomenaHydrolysisArachidonic AcidsArachidonic AcidCalibrationBiological MarkersDinoprostLiverCytochrome P-450 Enzyme SystemFatty Acids, UnsaturatedTime FactorsCattleIsotope LabelingHexanesAmino Acid SequenceChromatography, AffinityProteomeKineticsChromatography, Ion ExchangeReference StandardsLimit of DetectionEucommiaceaeIonsLipid MetabolismBreath TestsPentanesChromatography8,11,14-Eicosatrienoic AcidCarbon IsotopesChromatography, Reverse-PhaseChromatography, GelRhodiolaPeptidesReference ValuesEnvironmental MonitoringCarbon RadioisotopesWater PollutantsFlame IonizationMethanolSpectrometry, Mass, Secondary IonSugar AcidsSolid Phase ExtractionOligosaccharidesGlucoseDose-Response Relationship, DrugCholesterolMicrosomes, LiverHydrocarbonsIsotopesElectrophoresis, Gel, Two-DimensionalAmino AcidsSugar Alcohols