Device for the refrigerated storage and dispensation of...

G - Physics – 01 – N

Patent

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Details

G01N 30/24 (2006.01) B01L 7/00 (2006.01) G01N 30/30 (2006.01)

Patent

CA 2575864

The invention relates to a device for the refrigerated storage and dispensing of substance samples, in particular a sample dispenser that is used in chromatography. Said device comprises a holder (7) for receiving one or more substance samples (3), at least one section of the holder (7) comprising at least one cavity (13) that is traversed by a liquid coolant (29), said cavity or cavities (13) being connected to a feed connection for supplying the coolant (29) and a return connection for evacuating the coolant (29). The device also comprises a liquid refrigeration unit (21), the feed connection of which is connected to the feed connection of the cavity or cavities (13) and the return connection of which is connected to the return connection of the cavity or cavities (13), a pump (23) for transporting the coolant (29) through the cavity or cavities (13) and a Peltier refrigeration unit (27) for cooling the coolant (29). In addition, the invention relates to an integrated liquid refrigeration unit (21) for a device of this type.

L'invention concerne un dispositif pour conserver au frais et pour livrer des substances d'essais, notamment un échantillonneur pour la chromatographie, ce dispositif comprenant un dispositif récepteur (7) pour recevoir une ou plusieurs substances d'essais (3), au moins une partie de ce dispositif récepteur (7) comportant au moins une cavité (13) traversée par un agent frigorifique (29) liquide. Cette cavité (13) est reliée à un raccordement d'entrée pour l'alimentation en agent frigorifique (29) et à un raccordement de retour pour l'évacuation de l'agent frigorifique (29). Le dispositif comporte également une unité de réfrigération par fluide (21), dont le raccordement d'entrée est relié au raccordement d'entrée de la cavité (13) et dont le raccordement de retour est relié au raccordement de retour de la cavité (13), cette unité de réfrigération étant pourvue d'une pompe (23) pour le transport de l'agent frigorifique (29) à travers la cavité (13) et d'une unité de réfrigération à effet Peltier (27) pour refroidir l'agent frigorifique (29). La présente invention porte également sur une unité de réfrigération par fluide (21) intégrée, adaptée à un dispositif de ce type.

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