Determination of Aromatic Sulfonates in Coastal Water by On-Line Ion-Pair Solid-Phase Extraction/Ion-Pair Liquid Chromatography with UV Detection

摘要

A method for determining aromatic sulfonates in sea water is presented.Ion-pair solid phase extraction is coupled on-line to ion-pair liquid chromatography with UV detection.in the enrichment step,the recoveries from 100 rL of sea water were higher than 65% for most analytes.Linearity was good and detection limits were between 0.02 and 1 #mu#gL~(-1).The repeatability of the method,expressed as% of relative standard deviation (n=3) was between 1 adn 15%.The method was checked in coastal water near the commercial prot of Tarragona,where effluents from the petrochemical industry are discharged.All the samples taken were found to contain 2-naphthalenesulfonate.