Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mark A. Gregory0
Anthony J. Cochran0
Garth E. Patterson0
Jason L. Springston0
Date of Patent
April 21, 2009
Patent Application Number
11367334
Date Filed
March 6, 2006
Patent Primary Examiner
Patent abstract
The present invention discloses a gas chromatograph assembly. In one implementation, the assembly includes a sample injector and a guard column assembly. The guard column assembly includes a guard column connected to and downstream of the sample injector; a jacket with low thermal mass surrounding the guard column; a temperature controlled heater connected to the jacket to control the temperature of the jacket and thereby the temperature of the guard column; and an insulating housing surrounding the jacket. An analytical column is connected to and downstream of the guard column.
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