Method and apparatus for mobile phase ion chromatography and membrane suppression
CA 1207026 A · Owner: Dionex Corporation · Inventors: Pohl, Christopher A.; Slingsby, Rosanne W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile liquid phase including an ion exchange site-forming compound is directed through a porous hydrophobic chromatographic separation medium without permanently attached ion exchange sites. Such compounds include a hydrophobic counter-ion opposite in charge to the ionic species to be separated,which form reversible adsorptive bonds with the chromatographic medium. The effluent from the chromatographic medium is contacted with a membrane separating a compartment for the effluent and one for a regenerant. The membrane includes exchangeable ions capable of converting the co-ions of the ion exchange site forming compoùnd to weakly ionized form. The ionic species are detected, suitably by a …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2003.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.