Gas-chromatographic determination of phenols in aqueous samples after solid phase extraction |
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Authors: | P Mußmann K Levsen and W Radeck |
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Institution: | (1) Fraunhofer-Institut für Toxikologie und Aerosolforschung, Nikolai-Fuchs-Strasse 1, D-30625 Hannover, Germany;(2) Rheinisch-Westfälischer Technischer Überwachungsverein, Langemarkstrasse 20, D-4514 Essen, Germany |
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Abstract: | 27 phenols including mono-, di-, tri-, tetra- and pentachlorophenols, mono- and dinitrophenols, mono-and dinitrocresols and dimethylnitrophenols have been extracted from aqueous samples by solid phase extraction using both modified silica gel (C18) and XAD resin-adsorbents and determined by gas chromatography (GC) using capillary columns with specially desactivated weakly polar phases. If a 11 sample of spiked water is used, a considerable breakthrough is observed with phenol itself, while all other phenols are almost quantitatively extracted. The recovery of phenol itself can be improved by employing smaller sample volumes. |
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