title: Twin comprehensive two-dimensional gas chromatographic system: concept and applications.
abstract: A twin GC x GC system has been designed which enables the analysis of a sample by means of two different and independent column combinations simultaneously. Both combinations are incorporated in the same oven, using the same temperature programme, and are fed using a 50:50 column-entrance-split. It is demonstrated that, employing combinations of a conventional non-polar x polar and a reversed-type polar x non-polar column set, the information content is as high, and the analytical performance is as good as when using two separate GC x GC systems. That is, there is an appreciable gain of time and a reduction of costs without any loss of quality. The general usefulness of performing, and comparing two mutually different GC x GC runs is further illustrated with FAMEs in olive oil, and pollutants in a sediment sample.
authors.affiliation: Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, de Boelelaan 1083, 1081 HVAmsterdam, The Netherlands. M.Adahchour@few.vu.nl
authors.forename: Mohamed
authors.initials: M
authors.lastname: Adahchour
authors.forename: Eric
authors.initials: E
authors.lastname: Jover
authors.forename: Jan
authors.initials: J
authors.lastname: Beens
authors.forename: René J J
authors.initials: RJ
authors.lastname: Vreuls
authors.forename: Udo A Th
authors.initials: UA
authors.lastname: Brinkman
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis; D005504:Food Analysis; D019015:Geologic Sediments / Q000737:chemistry; D015203:Reproducibility of Results
chemical_list: D004785:Environmental Pollutants