Invention Grant
- Patent Title: System for integrated backflush in a gas chromatograph
- Patent Title (中): 气相色谱仪集成反吹系统
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Application No.: US12331671Application Date: 2008-12-10
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Publication No.: US08210026B2Publication Date: 2012-07-03
- Inventor: Matthew S. Klee , Lawrence John Gajdos , Bruce Douglas Quimby
- Applicant: Matthew S. Klee , Lawrence John Gajdos , Bruce Douglas Quimby
- Applicant Address: US CA Santa Clara
- Assignee: Agilent Technologies, Inc.
- Current Assignee: Agilent Technologies, Inc.
- Current Assignee Address: US CA Santa Clara
- Main IPC: G01N30/62
- IPC: G01N30/62

Abstract:
A detector in a gas chromatograph includes a detector inlet configured to receive a chromatographic column, the chromatographic column having a column entrance and a column exit, the column exit coupled to the detector inlet, a restriction integrated within the detector, the restriction located to receive an output of the chromatographic column, at least one pressure regulated gas source provided for normal gas chromatograph operation and arranged to provide at least one gas to a location between the integrated restriction and the column exit, and a backflush controller coupled to the pressure regulated gas source, the backflush controller configured to control a pressure differential between the column exit and the column entrance such that the at least one gas backflushes the chromatographic column when a pressure at the column exit exceeds a pressure at the column entrance.
Public/Granted literature
- US20100139363A1 System For Integrated Backflush In A Gas Chromatograph Public/Granted day:2010-06-10
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