Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1988-02-25
1991-07-23
Kepplinger, Esther L.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
422 90, 436161, 73 2342, 73 234, 73 2335, 55386, G01N 3002
Patent
active
050341936
ABSTRACT:
A preparative-scale gas chromatographic system has conduits and valves adapted for analysis and collection of low volatility effluent. An injection site is provided for alternately supplying liquid solvent for removing condensed effluent from the system when the flow of effluent is terminated. Conduits are joined within the thermal conductivity detector of the system to prevent condensation at the joint. Conduits are provided with copper jackets which are coupled to sources of thermal energy to prevent condensation within the conduits. A trap filter provides backpressure in the collection system wherein recovery of condensed effluent in the filter is facilitated by the smooth surface of the filter.
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Roeraade, J. and Enzell, C. R. "Preparative Gas Chromatography with Glass Capillary Columns", J. of High Resolution Chromatography & Chromatography Communications, (Mar. 1979), pp. 123-132.
Roz, B., Bonmati, R., Hagenbach, G. and Valentin, P. "Practical Operation of Prep-Scale Gas Chromatographic Units", J. of Chromatographic Science, (Aug. 1976), pp. 367-380.
Varex Automatic Preparative Gas Chromatograph, Varex Corporation, Product Literature, (.RTM.1985).
Booker John
Byerley Robert A.
Clark Patrick J.
Maroulis Peter J.
Morris Victoria J.
Air Products and Chemicals Inc.
Dannells, Jr. Richard A.
Kepplinger Esther L.
Kummert Lynn M.
Marsh William F.
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