Mass spectrometer
US7205538B2 · kind B2 · utility
24Cited by
24References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2006 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jun 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/4225
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mass spectrometer is disclosed comprising an ion trap wherein ions which have been temporally separated according to their mass to charge ratio or ion mobility enter the ion trap. Once at least some of the ions have entered the ion trap, a plurality of ion trapping regions are created along the length of the ion trap in order to fractionate the ions. Alternatively, the ions may be received within one or more axial trapping regions which are translated along the ion trap with a velocity which is progressively reduced to zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.