title: A gas chromatography quartz crystal microbalance for speciation of nitroaromatic compounds in landfill gas.
abstract: A new method based on separation with gas chromatography and detection with a quartz crystal microbalance was used for quantification of nitrobenzene, 2-, 3- and 4-nitrotoluene in landfill gas. The analytical error, the analysis time and general analytical performance were identical for gas chromatography-mass spectrometry (GC-MS) and gas chromatography-quartz crystal microbalance (GC-QCM). GC-QCM constitutes a very inexpensive alternative to GC-MS for monitoring nitroaromatic compounds in landfill gas.
authors.affiliation: Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
authors.forename: T A
authors.initials: TA
authors.lastname: Rocha Santos
authors.forename: A C
authors.initials: AC
authors.lastname: Duarte
authors.forename: J A
authors.initials: JA
authors.lastname: Oliveira