| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2fc8c4f23758df7ed658973e2a913e38 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-401 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-063
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-164
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-10 |
| filingDate |
2004-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2007-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46ccc8673e0057f21afbc37417cf77e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0787872a2e424821fa89ff00436d801
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c4db84dfb796107991631b995c9cace0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09c5f608c176b9373a21727b70c6178f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e85346229347a268f9b36e134827953a |
| publicationDate |
2007-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7189963-B2 |
| titleOfInvention |
Spectrometer provided with pulsed ion source and transmission device to damp ion motion and method of use |
| abstract |
A method and apparatus are provided for providing an ion transmission device or interface between an ion source and a spectrometer. The ion transmission device can include a multipole rod set and includes a damping gas, to damp spatial and energy spreads of ions generated by a pulsed ion source. The multipole rod set has the effect of guiding the ions along an ion path, so that they can be directed into the inlet of a mass spectrometer. The invention has particular application to MALDI (matrix-assisted laser desorption/ionization) ion sources, which produce a small supersonic jet of matrix molecules and ions, which is substantially non-directional, and can have ions travelling in all available directions from the source and having a wide range of energy spreads. The ion transmission device can have a number of effects, including: substantially spreading out the generated ions along an ion axis to generate a quasi-continuous beam; reducing the energy spread of ions emitted from the source; and at least partially suppressing unwanted fragmentation of analyte ions. Consequently, a number of pulses of ions can be delivered to the time-of-flight or other spectrometer, for each cycle of the ion generation. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005285031-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9136098-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007142817-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009094757-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8110798-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011174965-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7388194-B2 |
| priorityDate |
1998-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |