METHOD AND APPARATUS FOR MEASURING VELOCITY OF CHROMATOGRAPHIC PULSE

An Apparatus and method for two-stage chromatographic separation uses thermal modulation. The chromatographic column or modulation tube ( 1 ) has a loop structure such that two portions of modulation tube ( 1 ) can be thermally modulated simultaneously by at least one thermal modulation device, whic...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	LEDFORD, EDWARD, B., JR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS SEPARATION TESTING TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An Apparatus and method for two-stage chromatographic separation uses thermal modulation. The chromatographic column or modulation tube ( 1 ) has a loop structure such that two portions of modulation tube ( 1 ) can be thermally modulated simultaneously by at least one thermal modulation device, which device can have a cold gas source, jet tube ( 2 ), and a hot gas source, hot jet tube ( 5 ), to modulate the temperature of the portions ( 3, 4 ) of modulation tube ( 1 ).