Ion mobility spectrometer instrument and method of operating same
US7838821B2 · kind B2 · utility
11Cited by
2References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 21, 2009 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Jan 21, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/622
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion mobility spectrometer instrument has a drift tube that is partitioned into a plurality of cascaded drift tube segments. A number of electric field activation sources may each be coupled to one or more of the plurality of drift tube segments. A control circuit is configured to control operation of the number of electric field activation sources in a manner that applies switched electric fields at a specified switching rate to the drift tube segments to thereby produce at the ion outlet only ions having a predefined ion mobility or range of ion mobilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.