Capillary ion chromatography

Details Capillary ion chromatography Capillary ion chromatography

G - Physics

01

N

G01N 30/96 (2006.01) B01D 15/36 (2006.01)

Patent

CA 2579821

An apparatus for capillary ion chromatography comprising a suppressor comprising flow-through ion exchange packing in a housing and capillary tubing (32) formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit (38) for aqueous liquid from the detector (34) to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.

L'invention concerne un dispositif de chromatographie d'échange ionique capillaire qui comprend un suppresseur pourvu d'un remplissage d'échange ionique à flux continu contenu dans un logement et un tube capillaire (32) formé d'une membrane d'échange ionique permsélective, et au moins partiellement disposée dans ledit remplissage d'échange ionique. De plus, un conduit de recyclage (38) dirige les liquides aqueux du détecteur (34) au remplissage. Par ailleurs, le tube capillaire peut comporter des groupes fonctionnels faiblement acides ou faiblement basiques. L'invention concerne en outre un procédé d'utilisation de ce dispositif.

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