http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009094760-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_da36661d71c21e036b6bdd00434150aa http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e41651508566f0385833e1ba14a21ffd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_db747897c4d69281f0d4f6ac677485d6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5701d98a0cadfdfe76e39f4ee1d98e9e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9df4608ec59267d5a41c8e091a1af1c5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-426 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-0063 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-10 |
| filingDate | 2009-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71052ca0c46504841c095f98bc9344a4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f5edbaed563595ad2650afe3d58117f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f492f9f1cade7c83f4570d7aca115321 |
| publicationDate | 2009-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2009094760-A1 |
| titleOfInvention | Method of operating a linear ion trap to provide low pressure short time high amplitude excitation with pulsed pressure |
| abstract | Methods for fragmenting ions in an ion trap are described. These methods involve a) selecting parent ions for fragmentation; b) retaining the parent ions within the ion trap for a retention time interval, the ion trap having an operating pressure of less than about 1 x 10-4 Torr; c) providing a RF trapping voltage to the ion trap to provide a Mathieu stability parameter q at an excitement level during an excitement time interval within the retention time interval; d) providing a resonant excitation voltage to the ion trap during the excitement time interval to excite and fragment the parent ions; e) providing a non- steady-state pressure increase of at least 10% of the operating pressure within the ion trap by delivering a neutral gas into the ion trap for at least a portion of the retention time interval to raise the pressure in the ion trap to a varying first elevated-pressure in the range between about 6 x 10-5 Torr to about 5 x 10-4 Torr for a first elevated-pressure duration; and f) within the retention time interval and after the excitement time interval, terminating the resonant excitation voltage and changing the RF trapping voltage applied to the ion trap to reduce the Mathieu stability parameter q to a hold level less than the excitement level to retain fragments of the parent ions within the ion trap. The excitation time interval and the first elevated-pressure duration substantially overlap in time. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103119689-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2936546-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014096917-A1 |
| priorityDate | 2008-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.