Chromatography apparatus
AssigneeGroupe Industriel de Realisations et Applications
InventorFrancois Couillard
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Abstract
In a chromatographic column assembly comprising a tubular column a first end of which is sealed, the second end of said column is also sealed in order to form an enclosure between said second end and a piston. A pressurized fluid introduced into this enclosure displaces the piston in the direction corresponding to compression of a packing or filling provided in the column. A flexible conduit ensures the circulation of a fluid to be chromatographed and crosses through the piston, the enclosure containing the pressurized fluid and the second end of the column.
Claims12
A chromatographic column assembly comprising:
- a tubular column having first and second sealed ends,
- a sealed piston slidable within the column for compressing a filling placed in a tubular chamber defined between the piston and said first sealed end of the tubular column,
- communicating means provided in the piston and in said first sealed end for ensuring a circulation of fluid to be chromatographed through the filling,
- a sealed enclosure defined between said piston and said second sealed end and independent of the circulation of the fluid to be chromatographed, and which contains a pressurized fluid which displaces said piston in the direction of said filling, and a flexible conduit ensuring the independent circulation of the fluid to be chromatographed and crossing through the second sealed end of said column, the enclosure containing the pressurized fluid and said piston.
Dependencies are inferred from the claim text.