Determination of Major Phenolic Compounds in Water by Reversed-phase Liquid Chromatography After Pre-column Derivatization with Benzoyl Chloride

Overview

Journal J Chromatogr A

Publisher Elsevier

Specialty Chemistry

Date 2003 Mar 22

PMID 12647829

Citations 10

Authors

Adem Asan

Ibrahim Isildak

Affiliations

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Abstract

A simple reversed-phase LC method capable of detecting ng/ml quantities of phenolic compounds in water is described. Pre-column derivatization with benzoyl chloride is used for the separation and determination o-cresol, m-cresol, p-cresol, phenol, resorcinol, catechol and hydroquinone in water. The benzoyl derivatives formed within in 15 min, were extracted with dietyl ether, and then analyzed by liquid chromatography with UV detection at 232 nm. With a mobile phase of acetonitrile-tetrahydrofuran-water (54:6:40, v/v) the seven derivatives were eluted in 15 min. The detection limits were between 0.05 and 0.50 ng/ml for 50 ml of a standard water sample. The method was applied to the analysis of phenols in wine and river water. The recovery of the derivatives from pure water was 81-94% with relative standard deviations of 2.5-5.0%.

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