Conversion of a conventional packed-column gas chromatograph to accommodate megabore columns : II. Determination of organophosphorus pesticides in environmental water

Several methods involving solvent extraction or solid extraction (Amberlite XAD resins) were studied for the multi-residue recovery of fourteen organophosphorus compounds in water. It was found that extraction with ethyl acetate in a salted medium provided the most consistent data, both in terms of...

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Published in:Journal of Chromatography A 1989, Vol.481, p.37-44
Main Authors: Mallet, Claude, Mallet, Victorin N.
Format: Article
Language:English
Subjects:
Analysis methods
Applied sciences
Exact sciences and technology
Natural water pollution
Pollution
Water treatment and pollution
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Mallet, Victorin N.
description Several methods involving solvent extraction or solid extraction (Amberlite XAD resins) were studied for the multi-residue recovery of fourteen organophosphorus compounds in water. It was found that extraction with ethyl acetate in a salted medium provided the most consistent data, both in terms of number of compounds recovered and percentage recovery. Amberlite XAD resins gave consistently high recoveries, and this was attributed to a matrix effect upon the particular nitrogen-phosphorus detector. The evaluation was made using a megabore column installed in a conventional packed-column chromatograph, and the results show that such a system is amenable to the multi-residue analysis of organophosphorus pesticides at very low cost.
doi_str_mv 10.1016/S0021-9673(01)96750-0
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subjects Analysis methods
Applied sciences
Exact sciences and technology
Natural water pollution
Pollution
Water treatment and pollution
title Conversion of a conventional packed-column gas chromatograph to accommodate megabore columns : II. Determination of organophosphorus pesticides in environmental water
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