Capillary ion chromatography

摘要

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

主权项

1. An electrolytically-regenerated suppressor for capillary ion chromatography comprising:
(a) a central chamber including:
(i) an ion exchange packing; and(ii) a capillary tubing having an inlet and an outlet and formed of a permselective ion exchange membrane, the capillary tubing being at least partially disposed in the ion exchange packing; (b) a first electrode chamber having an inlet and an outlet, the first electrode chamber including:
(i) a first electrode:(ii) a first permselective barrier that separates the first electrode chamber from the ion exchange packing; and (c) a second electrode chamber having an inlet and an outlet, the second electrode chamber including:
(i) a second electrode;(ii) a second permselective barrier that separates the second electrode chamber from the ion exchange packing.