On-column conductivity detector for microcolumn electrokinetic separations
CA 1339779 C · Owner: The Board Of Trustees Of The Leland Stanford Junior University · Inventors: Huang, Xiao-Hua; Pang, Joseph; Zare, Richard N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An on-column conductivity detector for microcolumn electrokinetic separation systems is disclosed. The detector is based on the column itself the column having a largest internal cross-sectional dimension of 500 microns or less and includes one or more sensing electrodes positioned directly upon or immediately adjacent to (i.e. contiguous with) the wall of the column into communication with the analyte stream so as to present no dead volume and no increase in cross-sectional area to the fluid flow. In one embodiment this, conductivity detector has a single on-column electrode located immediately adjacent to the exit end of the column. In a preferred embodiment, this conductivity detector …
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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 March 24, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.