http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2408144-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5db97a1c67e768f4b174d8c343d5a713 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-405 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-421 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-26 |
| filingDate | 2004-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_324ca3b9bf85bea1fce26c1ee826beb0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba6b80946d305c4fed36d4e9b2274374 |
| publicationDate | 2005-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2408144-A |
| titleOfInvention | A mass filter for a mass spectrometer |
| abstract | A mass filter for a mass spectrometer comprises an orthogonal acceleration electrode 9. Ions entering the mass filter are orthogonally accelerated by the orthogonal acceleration electrode 9 in a primary acceleration region 2 and enter a flight region 3. The ions 6,7,8 are then reflected by a reflectron 4 and are directed towards an exit region of the mass filter. Ions having a desired mass to charge ratio are arranged to arrive in the primary acceleration region 2 at a time when a voltage pulse applied to the orthogonal acceleration electrode 9 falls from a maximum to zero. Ions having a desired mass to charge ratio are orthogonally decelerated such that they have a zero component of velocity in the orthogonal direction. Accordingly, ions having a desired mass to charge ratio exit the mass filter in an axial direction. The mass filter also reduces the angular divergance of the entering ion beam. It may be operated in a non-mass filtering mode, acting solely as an ion guide. |
| priorityDate | 2003-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.