Determination of quaternary ammonium compounds in seawater samples by solid-phase extraction and liquid chromatography–mass spectrometry

Bassarab, Paul, Williams, David, Dean, John, Ludkin, Edwin and Perry, Justin (2011) Determination of quaternary ammonium compounds in seawater samples by solid-phase extraction and liquid chromatography–mass spectrometry. Journal of Chromatography A, 1218 (5). pp. 673-677. ISSN 0021-9673

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Official URL: http://dx.doi.org/10.1016/j.chroma.2010.11.088

Abstract

A method for the simultaneous determination of two biocidal quaternary ammonium compounds; didecyldimethylammonium chloride (didecyldimethyl quat) and dodecylbenzyldimethylammonium chloride (benzyl quat), in seawater by solid phase extraction (SPE) followed by liquid chromatography–mass spectrometry (LC–MS) was developed. The optimised procedure utilised off-line extraction of the analytes from seawater using polymeric (Strata-X) SPE cartridges. Recoveries ranged from 80 to 105%, with detection limits at the low parts-per-trillion (ng/l) level for both analytes. To demonstrate sensitivity, environmental concentrations were measured at three different locations along the North East coast of England with measured values in the range 120–270 ng/l.

Item Type: Article
Uncontrolled Keywords: Quaternary ammonium salts, Seawater-Analysis
Subjects: F100 Chemistry
Department: Faculties > Health and Life Sciences > School of Life Sciences > Applied Sciences
Depositing User: EPrints Services
Date Deposited: 24 Feb 2011 10:08
Last Modified: 10 Aug 2015 11:39
URI: http://nrl.northumbria.ac.uk/id/eprint/1416

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