Metering device for gas chromatography

Metering device for gas chromatography having a multi-way metering valve (DV) with connections (a1 to a6) for sample gas, carrier gas, separation column and a metering volume (D). In the filling position, a fill volume (F) about one to three powers of ten larger than the metering volume (D) (meterin...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	STRAUB, HORST. , 7500 KARLSRUHE, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Metering device for gas chromatography having a multi-way metering valve (DV) with connections (a1 to a6) for sample gas, carrier gas, separation column and a metering volume (D). In the filling position, a fill volume (F) about one to three powers of ten larger than the metering volume (D) (metering loop) is arranged upstream of the metering volume, the fill volume being able to be connected alternately to the sample gas source (PQ) at subatmospheric pressure, a carrier gas source (TQ) at superatmospheric pressure and a vacuum pump (P). The invention is used in gas chromatography, in particular laboratory gas chromatography.