Gas Chromatography-Mass SpectrometryMass SpectrometryChromatography, GasChromatography, LiquidChromatography, High Pressure LiquidVolatile Organic CompoundsSolid Phase MicroextractionMetabolomicsTandem Mass SpectrometryMetabolomePerianal GlandsSpectrometry, Mass, Electrospray IonizationOils, VolatileSubstance Abuse DetectionVolatilizationOcimum basilicumChromatography, Thin LayerAndrostenediolsAcetic AnhydridesMagnetic Resonance SpectroscopyMeconiumDeuteriumDoping in SportsF2-IsoprostanesFatty AcidsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGasesBiotransformationCarboxylic AcidsMolecular StructureHydroxyeicosatetraenoic AcidsOxidation-ReductionChemistryChemical PhenomenaReproducibility of ResultsUrinalysisMolecular Sequence DataEstersQuality ControlSteroidsStereoisomerismWater Pollutants, ChemicalKineticsMethylationCarbohydrate SequenceCarbohydrate ConformationFlame IonizationHydrolysisLipoxygenasePolycyclic Hydrocarbons, AromaticModels, ChemicalHot TemperatureSensitivity and SpecificityArachidonic AcidsArachidonic AcidTime FactorsProteomicsCytochrome P-450 Enzyme SystemDinoprostLiverFatty Acids, UnsaturatedBiological MarkersHexanesAmino Acid SequenceMycolic AcidsCattleChromatography, AffinityChromatography, Ion ExchangeEucommiaceaeCalibrationIsotope LabelingLipid MetabolismPentanesChromatographyReference Standards8,11,14-Eicosatrienoic AcidProteomeLimit of DetectionZeolitesRhodiolaPolycyclic CompoundsChromatography, GelBiofuelsBreath TestsWater PollutantsReference ValuesCarbon IsotopesSugar AcidsCarbon RadioisotopesDose-Response Relationship, DrugEnvironmental MonitoringMethanolMethanococcalesFiresChromatography, Reverse-PhasePeptidesGlucoseModels, BiologicalCholesterolOligosaccharides