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Capillary liquid chromatography of chlorophenoxy acid herbicides and their esters in apple juice samples after preconcentration on a cation exchanger based on polydivinylbenzene-N-vinylpyrrolidone

Food ChemistryChemical EngineeringEngineeringPesticide-residue AnalysisCation ExchangerEnvironmental EngineeringMedicineCapillary Liquid ChromatographyApple Juice SamplesAnalytical ChemistryLiquid ChromatographyChromatographic AnalysisPharmacologyChemical ContaminantChromatography