Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1990-03-05
1991-07-02
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55197, 55208, 55270, 55386, B01D 1508
Patent
active
050282433
ABSTRACT:
Gas chromatographic methods and apparatus are disclosed whereby improved separation times and efficiency are achieved by provision of a rapid transfer of heat or cooling from a heating or cooling source to the chromatographic column. The column is provided within an insulating sheath. A resistance heating element disposed in the sheath and optional heated or cooling gas flow through the sheath is capable of rapdily changing the temperature imparted to the column thereby.
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Spitzer Robert
University of Dayton
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