05141532 is referenced by 27 patents and cites 10 patents.

A gas chromatography system which incorporates a simplified sample injection system in which replaces conventional mechanical injection systems with one based strictly upon thermal trapping of a continuously supplied carrier gas and sample stream. The carrier gas and sample stream pass continuously through the device which incorporates a thermal focusing chamber which communicates with the inlet end of a gas chromatography separation column. By causing the focusing chamber temperature of a sample tube passing through the focusing chamber to be dropped, incoming components comprising the sample stream are condensed and trapped. Injection into the column occurs rapidly heating the sample in the thermal focusing chamber causing a narrow sample plug to be introduced into the column. Various embodiments of this invention are intended for operation for evaluating carrier gas and sample stream provided at a above atmospheric pressure, or which are drawn through the system by vacuum source at the outlet end of the column. In addition, vacuum backflushing features are also described.

Title
Thermal modulation inlet for gas chromatography system
Application Number
590174
Publication Number
5141532
Application Date
June 5, 1991
Publication Date
August 25, 1992
Inventor
Christine L Rankin
Ann Arbor
MI, US
Richard D Sacks
Ann Arbor
MI, US
Agent
Harness Dickey & Pierce
Assignee
The Regents of the University of Michigan
MI, US
IPC
B01D 15/08
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