RehmanniaYin-YangSuspensionsDrugs, Chinese HerbalTabletsAdministration, OralChromatography, High Pressure LiquidIonic LiquidsChromatography, LiquidLiquid CrystalsMass SpectrometryTandem Mass SpectrometryKineticsMolecular WeightCatharticsRabbitsLiquid VentilationElectrophoresis, Polyacrylamide GelSpectrometry, Mass, Electrospray IonizationDrug StabilityTime FactorsHydrogen-Ion ConcentrationCattleSpectrophotometry, UltravioletDelayed-Action PreparationsGuinea PigsTooth Preparation, ProsthodonticTemperatureReference StandardsReproducibility of ResultsChromatography, GelSolubilityCalibrationMolecular Sequence DataMethodsPlant PreparationsIndicators and ReagentsChromatography, Ion ExchangeMicroscopy, ElectronAmino AcidsAmino Acid SequenceFreeze DryingDrug CompoundingDrug ContaminationAnalytic Sample Preparation MethodsPharmaceutical PreparationsChromatographyCulture MediaChemistry, PharmaceuticalCell MembraneChromatography, AffinityWaterLiverDental Cavity PreparationChromatography, Thin LayerSensitivity and Specificity