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Direct determination of chlorophenols in water samples through ultrasound-assisted hollow fiber liquid–liquid–liquid microextraction on-line coupled with high-performance liquid chromatography

Chemical EngineeringEngineeringGas ChromatographyDirect DeterminationEnvironmental EngineeringWater SamplesWater AnalysisWater PurificationWater TreatmentAnalytical ChemistryLiquid ChromatographyChromatographic AnalysisMedicineChromatographyHigh-performance Liquid ChromatographyDrug Analysis