Dodecylsulfonic Acid-Binding Polyamide as Adsorobent for Organic Compounds in Air Sample

Abstract

A method to collect non-polar organic air pollutants and concentrate them by using an adsorbent, dodecylsulfonic acid binding polyamide, was investigated. Air samples containing PCBs, phthalates and chloronaphthalene were passed through a column packed with the adsorbent and the compounds adsorbed were eluted with ethanol. The compounds eluted were extracted with hexane after dilution of the eluate with water and measured by gas-liquid chromatography with an electron capture detector. These compounds at low level were quantitatively collected by the adsorbent and eluted from the column. This method was applied to the determination of air pollutants.