Abstract
A chemically modified polymeric resin with an acetyl group is developed for use in a solid-phase extraction process. The breakthrough volumes and selectivity of several phenolic compounds were studied and compared with the ones obtained for several commercial sorbents such as PLRP-s, Amberchrom, Envi-Chrom P and LiChrolut EN. The study was carried out by coupling an on-line solid-phase extraction system to a modified liquid chromatograph where compounds were eluted only by the organic solvent of the mobile phase. The sorbent studied was used to establish a method for determining eleven Environmental Protection Agency priority phenolic compounds in water at low levels.
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