Chromatographic interface for thermal desorption systems

Details Chromatographic interface for thermal desorption systems Chromatographic interface for thermal desorption systems

2007-10-22

2009-06-30

Larkin, Daniel S (Department: 2856)

Measuring and testing

Gas analysis

Gas chromatography

C073S023350, C095S082000, C096S101000, C096S105000, C096S106000

Reexamination Certificate

active

07552618

ABSTRACT:
Disclosed are systems and methods that include a thermal desorption unit, a chromatographic column, and an interface device between the unit and the column. The interface device controls the fluid flowing into the column, such as by providing additional carrier gas to maintain a substantially constant gas flow or velocity, by proving a controlled temperature increase, or by venting a portion of the gas received from the thermal desorption unit, thereby removing the dependence on the thermal desorption unit for such control. In some embodiments, the interface is a chromatographic injector. In certain embodiments, a transfer line from the desorption unit is coupled to the same port of the interface device as the chromatographic column. In some of these embodiments, this is accomplished by employing a special adaptor.

REFERENCES:
patent: 3672226 (1972-06-01), Reid
patent: 5545252 (1996-08-01), Hinshaw et al.
patent: 6402947 (2002-06-01), Altamirano et al.
patent: 6652625 (2003-11-01), Tipler et al.
patent: 6814785 (2004-11-01), Tipler et al.
patent: 7284410 (2007-10-01), Tipler et al.
patent: 2002/0157453 (2002-10-01), Van der Maas
patent: 43 16 375 (1994-06-01), None
patent: WO 2005/040786 (2005-05-01), None
International Search Report, Oct. 15, 2005, 7 pages.

Affiliated with

Also associated with

Rating

Chromatographic interface for thermal desorption systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chromatographic interface for thermal desorption systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromatographic interface for thermal desorption systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4128725