Congener-specific identification of bromochlorobenzenes and bromotoluenes in effluents from municipal waste incineration plants

Summary Bromochloro- and bromomethylbenzenes have been collected by a condensation and impinger absorption technique from flue gas of municipal waste incineration plants. After extractive enrichment with dichloromethane the congeners have been separated by high resolution capillary gas chromatography using methylphenyl- and methyl-cyanopropylsilicon phases with electron capture (ECD) and mass-selective detection (MSD). The monobromomethylbenzenes and the monobromotrichloro- to monobromopentachlorobenzenes were predominant. The corresponding dibromochlorobenzenes were found at a level of less than 1% of the monobromo congeners. The amounts of the monobromochlorobenzenes were found to lie in the lower g/Nm³ range, the same as for the polychlorobenzenes.

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Kongeneren-spezifische Identifizierung von Brom-chlorbenzolen und Brom-methylbenzolen im Reingas von Müllheizkraftwerken