Rapid Extraction of Chlorinated Phenoxyacid Herbicides from Drinking Water Using Octadecylsilane Extraction Disks
- 1 July 1995
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Chromatographic Science
- Vol. 33 (7) , 393-398
- https://doi.org/10.1093/chromsci/33.7.393
Abstract
A series of chlorinated phenoxyacid herbicides is extracted from 1 L of drinking water in approximately 10 min using 47-mm diameter polymer disks impregnated with octadecylsilane adsorbent The herbicides are subsequently eluted with ethyl acetate and derivatized prior to analysis by gas chromatography-mass spectrometry. Overall average percent recoveries for the herbicides studied range from 71 to 91 % for concentrations of 10, 1, and 0.1 μg/L of reagent water. Similar recoveries are observed for well water samples, which are fortified with known concentrations of each herbicide.Keywords
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