Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1991-01-30
1992-08-04
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55197, 55386, 210656, 2101982, B01D 1508
Patent
active
051355493
ABSTRACT:
To provide a compact, sensitive comprehensive, two-dimensional gas chromatograph, a chromatographic column has first and second sections in series with each other to permit the flow of sample and a carrier through the first section and the second section. The retention time of the second section is less than the band resolution time of the first section. To control the wave fronts between the first and second sections, first and second heaters are positioned to heat and drive off sample collected at the outlet of the first section for collection in the second section and to heat sample collected at the inlet of the second section so that the first heater rapidly drives off sample for collection in the second section and then the second section rapidly drives off sample in a sharp wave front while the first section is accumulating another band for later movement into the second section.
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Liu Zaiyou
Phillips John B.
Spitzer Robert
The Board of Trustees of Southern Illinois University
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