Mass spectrometry with segmented RF multiple ion guides in various pressure regions
US7858926B1 · kind B1 · utility
53Cited by
28References
57Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 21, 2006 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Feb 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mass spectrometer includes an ion source and at least one vacuum stage, a means for delivering ions from the ion source to the vacuum stage, a collision cell, a detector, at least two multipole ion guide segments, and independent RF frequency and DC voltage sources applied to the multipole ion guide segments, the RF frequency and DC voltage sources being controlled independently of each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.