High speed countercurrent centrifuge for removal attachment of chromatographic columns thereto, and chromatographic column for the same
US4792395A · kind A · utility
Inventor
Key dates
| Filing date | Aug 14, 1987 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | Aug 14, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/6091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high speed countercurrent centrifuge is designed so that the chromatographic column used therewith may be readily replaced. A shaft for rotating a chromatographic column includes a column holder plate fixed therearound. The column holder plate has upwardly extending pins which engage the corresponding holes on the bottom flange of a spool about which a chromatographic column is wrapped, fixing the orientation of the spool relative to the column holder plate. Also a multi-layer chromatographic column is constructed to be used in the centrifuge. Multiple layers of tubing are wrapped around the above-described spool. The inlet and outlet ends of this tubing terminate in tubing adaptors mounted on an outer surface of a flange to permit quick connection of the column to the flow tubes of the centrifuge apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.