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657992 
Journal Article 
Solid phase extraction of phenols from water by highly porous cross-linked polystyrene 
Koch, J; Voelker, P 
1995 
Yes 
Acta Hydrochimica et Hydrobiologica
ISSN: 0323-4320
EISSN: 1521-401X 
BIOSIS/95/16962 
23 
2 
66-71 
English 
The extraction of organic trace components from water by solid phase extraction has largely substituted liquid/liquid extraction. For the isolation of many underivatized phenols with significant water solubility however, the conventional surface-modified silicagels are unsuitable. In the following, results are reported of experiments with a novel, highly porous material of cross-linked polystyrene. Using columns with 0.2 g of the adsorbent, the isolation of more than 60 differently substituted phenols, including 6 pesticides and 31 metabolites, in the concentration range of 25 to 125 ng has been accomplished. After adsorption from 1 L of sample water, derivatization and gas chromatographic determination recoveries ranged from 70 to 100%. 
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