Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 313183
Title Comprehensive two-dimensional gas chromatography with a rotating thermal desorption modulator and independently temperature-programmable columns
Author(s) Geus, H.J. de; Schelvis, A.; Boer, J. de; Brinkman, U.A.Th.
Source Journal of high resolution chromatography 23 (2000)3. - ISSN 0935-6304 - p. 189 - 196.
Department(s) ID Lelystad, Institute for Animal Science and Health
Netherlands Institute for Fisheries Research
Publication type Refereed Article in a scientific journal
Publication year 2000
Abstract In comprehensive two-dimensional gas chromatography, two individual separations are coupled by means of a rotating thermal desorption modulator interface. The injection pulse introduced via the interface onto the second column should be as short as possible. Parameters affecting the modulator operation are studied. In the set-up used in this study, the temperature of the second column can be programmed independently from that of the first column. Optimization of the second-dimension separation to minimize peak broadening and maximize resolution is discussed and an elegant approach to determine second-dimension retention times using a non-constant modulation frequency is demonstrated. The high separation power of the comprehensive system is demonstrated by the analysis of technical and biota samples containing chlorinated biphenyls and toxaphene.
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