Method for adjusting operating parameters in comprehensive two-dimensional chromatography

The invention provides a manual or automated method for eliminating or minimizing retention time shifts in comprehensive two-dimensional gas chromatography (abbreviated GCxGC). Under nominal identical conditions (identical column-set specifications and GCxGC oven temperature programming), the invent...

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Bibliographische Detailangaben
Hauptverfasser:	KNOOREN, JEROEN ALBERT ANGELICUS, MOMMERS, JOHANNES HELENA MICHAEL, MENGERINK, YNZE, WILBERS, ARNOLD THEODOR MARIE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention provides a manual or automated method for eliminating or minimizing retention time shifts in comprehensive two-dimensional gas chromatography (abbreviated GCxGC). Under nominal identical conditions (identical column-set specifications and GCxGC oven temperature programming), the invention allows one to reproduce the two-dimensional retention times from one column-set to another, from one GCxGC to another or from one column outlet pressure to another. A procedure is described to manually or automatically adjust the head pressure of the primary column and the (effective) secondary column length to compensate for the two-dimensional retention time differences.