title: Use of a modified Tenax GC column packing for the direct gas chromatographic analysis of phenols in water at the ppm level.
abstract: Dilute solutions of phenols in water at the ppm level may be analysed gas chromatographically by direct injection onto a column with a packing similar to that used in the Viking 1975 spacecraft: Tenax GC (2,6-diphenyl-p-phenylene oxide polymer) modified with polymetaphenyl ether liquid phase to eradicate irreversible adsorption. Symmetrical peaks were observed for injections of less than 1 ng of phenol and some of its alkylated derivatives. Chromatographic properties of modified Tenax GC columns are reported along with their application to the analysis of some industrial effluents with previous work-up.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D010636:Phenols / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D010636:Phenols; D014873:Water Pollutants; D014874:Water Pollutants, Chemical