DE2656398
The enclosure comprises an insulating and demountable sealed box unit fitted with a closure lid and placed around a chromatographic column consisting of a metal tube of constant cross-section, said tube being arranged in the form of a helix and supplied with electric heating current which is cut-off...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The enclosure comprises an insulating and demountable sealed box unit fitted with a closure lid and placed around a chromatographic column consisting of a metal tube of constant cross-section, said tube being arranged in the form of a helix and supplied with electric heating current which is cut-off for cooling purposes. The heating and cooling air is supplied through a coaxial injection pipe and nozzle, circulated axially through and then around the column within the box unit, then discharged through the bottom wall of a collector casing. |
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