Determination of lecithin
CA 1184101 A · Owner: Boehringer Mannheim G.M.B.H. · Inventors: Becker, Jurgen; Beinstingl, Gerhard; Beutler, Hans-Otto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process and reagent for the determination of lecithin in a sample and for the splitting of lecithin; in particular lecithin is split with, for example, phospholipase-C and alkaline phosphatase to give choline this is, reacted in the presence of adenosine triphosphate with the help of choline kinase again to give phosphorylcholine and the thereby formed adenosine diphosphate is measured in known manner; in accordance with the invention the splitting of the lecithin is carried out in the presence of a borate/borax buffer and of a detergent, particularly a non-ionic detergent based, on a condensation product of polyethyleneglycol with isooctylphenol.
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 March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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.