Solid Phase ExtractionInorganic ChemicalsBurseraceaeCalibrationChromatography, High Pressure LiquidTandem Mass SpectrometryChromatography, LiquidLimit of DetectionAcanthopanaxReproducibility of ResultsSpectrophotometry, AtomicReference StandardsGas Chromatography-Mass SpectrometryMass SpectrometrySpectrometry, Mass, Electrospray IonizationSensitivity and SpecificityWater Pollutants, ChemicalIndicators and ReagentsPhenolsMolecular StructureTooth ExtractionSolid Phase MicroextractionSolid-Phase Synthesis TechniquesSpectrophotometry, UltravioletMolecular WeightElectrophoresis, Polyacrylamide GelChromatography, AffinityChromatography, Ion Exchange