HeracleumLiquid-Liquid ExtractionChemical FractionationSolid Phase ExtractionGas Chromatography-Mass SpectrometryChromatography, LiquidSolventsPressureChromatography, High Pressure LiquidIonic LiquidsLiquid CrystalsTooth ExtractionTandem Mass SpectrometryMass SpectrometryCataract ExtractionSpectrometry, Mass, Electrospray IonizationLiquid VentilationReproducibility of ResultsReference StandardsCalibrationChromatography, Supercritical FluidLimit of DetectionSpectrophotometry, UltravioletSerial ExtractionChemistry Techniques, AnalyticalChromatography, Reverse-PhaseChromatography, GasWaterIndicators and ReagentsSpecimen HandlingSubstance Abuse DetectionTime FactorsPlant ExtractsTemperatureChloroformMethanolAcetonitrilesLiquid Phase MicroextractionCulture MediaHydrogen-Ion ConcentrationMolecular Sequence DataChromatography, Thin LayerAnalytic Sample Preparation MethodsForensic MedicineMethodsMicrochemistryAutomationSolid Phase MicroextractionMolecular StructureKineticsCattleDrug StabilityTooth SocketMolar, ThirdPhenolsBody FluidsDevice RemovalSolubilityElectrophoresis, Polyacrylamide GelHexanesFreezingMicrowavesMolecular WeightFluorocarbonsPolymerase Chain ReactionAmino Acid SequenceChromatography, Ion ExchangeSolutionsMagnetic Resonance SpectroscopyBiotransformationSensitivity and SpecificityPhase TransitionAmino AcidsNatural Language ProcessingQuality ControlForensic ToxicologyPesticide ResiduesLiverChromatography, GelProteomicsSilica GelFood AnalysisRadioimmunoassayStereoisomerismAlgorithmsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationPharmaceutical PreparationsSwineEthanol