METHOD OF DETERMINING CONCENTRATIONS OF CHLOROPHENOLS IN AQUEOUS SOLUTIONS, INVOLVING SORPTION CONCENTRATION AND HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC DETERMINATION

摘要

FIELD: chemistry.;SUBSTANCE: method of determining concentrations of chlorophenols in aqueous solutions involves flow sorption concentration on polymer sorbents, desorption of chlorophenols with water at temperature 150-200°C and high-performance liquid chromatographic determination of chlorophenols in an aqueous concentrate. Through desorption with water at temperature 150-200°C and feeding the entire concentrate into the chromatographic column, the half-width of chlorophenol peaks on chromatograms drops 2-3-fold (to 6-8 s), and the detection limit falls 5-fold compared to existing methods.;EFFECT: method of determining chlorophenols in water, characterised by high sensitivity and small width of peaks on the chromatogram.;1 dwg