HeracleumLiquid-Liquid ExtractionChemical FractionationSolid Phase ExtractionGas Chromatography-Mass SpectrometrySolventsChromatography, LiquidPressureChromatography, High Pressure LiquidTooth ExtractionIonic LiquidsLiquid CrystalsCataract ExtractionReproducibility of ResultsTandem Mass SpectrometryTime FactorsMass SpectrometryChromatography, Supercritical FluidSerial ExtractionSensitivity and SpecificityReference StandardsSpectrometry, Mass, Electrospray IonizationCalibrationChemistry Techniques, AnalyticalPolymerase Chain ReactionLimit of DetectionTreatment OutcomeSpecimen HandlingLiquid VentilationChromatography, GasMicrowavesAlgorithmsEquipment DesignMolecular Sequence DataMethodsSpectrophotometry, UltravioletWaterAutomationIndicators and ReagentsPlant ExtractsBacteriological TechniquesChloroformDevice RemovalSubstance Abuse DetectionMolar, ThirdCulture MediaTemperatureHydrogen-Ion ConcentrationTooth SocketCattleEvaluation Studies as TopicProspective StudiesKineticsMethanolSolid Phase MicroextractionAnalytic Sample Preparation MethodsSolubilityForensic MedicineChromatography, Reverse-PhaseNatural Language ProcessingAmino Acid SequenceElectrophoresis, Polyacrylamide GelChromatography, Thin LayerReagent Kits, DiagnosticSwineMicrochemistryMolecular WeightGerm-Free LifeLiquid Phase MicroextractionDNA, BacterialLiverPhenolsMagnetic Resonance SpectroscopyHexanesMolecular StructureImage Processing, Computer-AssistedFollow-Up StudiesBicuspidAcetonitrilesRetrospective StudiesDogsMagnetic Resonance ImagingData MiningQuality ControlPesticide ResiduesBacteriaFreezing