A method for element-selective detection, a micro plasma mass spectrometer for use in the method and a plasma ion source, together with applications thereof
CA 2278807 A1 · Owner: Brede, Cato · Inventors: Brede, Cato; Greibrokk, Tyge; Lundanes, Elsa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method for element-selective detection of chromatographically or electrophoretically separated compounds there is employed a micro plasma mass spectrometer with a plasma ion source provided in the mass spectrometer's high vacuum chamber. The plasma ion source is equipped with a capillary channel surrounded by a radio-frequency electrode connected to a radio-frequency generator and around or adjacent to the capillary channel there are provided one or more earth electrodes. When plasma gas is introduced into the channel the plasma is created by discharges between the radio-frequency electrode and one or more of the earth electrodes. The method the plasma mass spectrometer , and …
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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
- Filed February 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2020.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.