Discharge ionization mass spectrometer
CA 1269180 C · Owner: Micromass Uk Limited · Inventors: Bateman, Robert Harold; Jones, David Spencer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a mass spectrometer (10) for the analysis of a sample dissolved in a fluid and, in particular a spectrometer for the analysis of high molecular weight compounds in the eluent of a liquid chromatograph. The fluid to be analyzed is at least partly vaporized and sprayed into the cathode dark space (45) of a glow discharge (46). Ions characteristic of the sample are extracted from the discharge and subsequently mass analyzed. Conveniently, spraying into the cathode dark space (45) is achieved by making the cathode electrode of the discharge comprise the spraying means (38) through which the fluid is sprayed. Little fragmentation of the high mass ions is caused by the …
Read the whole patent
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 May 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
- 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
Timeline From CIPO dates
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.