Material separation device

G - Physics – 01 – N

Patent

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Details

G01N 27/447 (2006.01) B01D 57/02 (2006.01) B01L 3/00 (2006.01)

Patent

CA 2491303

A separating device for use in separating electrically charged components e.g. by electrophoresis comprises a channel branched at a branch point to provide a main feed channel (105) connected to at least two subsidiary channels (110, 115). In use, different components (120, 125, 130) show differential migration along the feed channel (105) so they can be separated into different subsidiary channels (110, 115) at the branch point. To support this separation, the separating device is provided with switchable voltage control means for controlling local voltages in the region of the branch point to provide potential differences of opposing polarity along the respective subsidiary channels (110, 115) such that a component to be separated (125) can be caused to migrate from the feed channel into a different subsidiary channel (115) from one or more other components.

L'invention concerne un dispositif de séparation destiné à séparer des composants électriquement chargés par exemple par électrophorèse. Ce dispositif comprend un canal ramifié au niveau d'un point de ramification en vue de fournir un canal d'alimentation principal (105) relié à au moins deux canaux auxiliaires (110, 115). En fonctionnement, différents composants (120, 125, 130) affichent une migration différentielle le long du canal d'alimentation (105) ainsi ils peuvent être séparés en différents canaux auxiliaires (110, 115) au niveau du point de ramification. En vue de supporter cette séparation, le dispositif de séparation est équipé de moyens de commande de tension commutable permettant de commuter les tensions locales dans la zone du point de ramification en vue de produire des différences de potentiel de polarités opposées le long des canaux auxiliaires respectifs (110, 115) de sorte qu'un composant à séparer (125) puisse être migré du canal d'alimentation vers un canal auxiliaire différent (115) à partir d'un ou plusieurs autres composants.

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