title: Occurrence of low- and high-chlorinated phenols in municipal sewage before and after passing through biological treatment plants.
abstract: Four biological treatment plants for municipal sewage, situated at different locations, were examined for their chlorophenol content and their ability to degrade these compounds. A routine method for the analysis of both low- and high-chlorinated phenols was developed, based on gas chromatography with electron-capture detection (GC-ECD). The method was evaluated by comparing the GC-ECD results with those obtained by combined gas chromatography-mass spectrometry with selected-ion monitoring of the molecular ions of the specific phenols. The total phenol content, determined by GC-ECD showed a good correlation with the phenol number, obtained by using the 4-aminoantipyrine method.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002733:Chlorophenols / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry; D012722:Sewage / Q000032:analysis*; D012997:Solvents
chemical_list: D002733:Chlorophenols; D012722:Sewage; D012997:Solvents