Periodic field focusing ion mobility spectrometer
US6639213B2 · kind B2 · utility
23Cited by
8References
27Claims
0Family size
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Inventors
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Apr 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention is generally in the field of improved ion mobility spectrometry. The improvement lies in the use of periodic focusing electric fields that minimize the spatial spread of the migrating ions by keeping them in a tight radius about the axis of travel. The resulting enhancement in sensitivity is accomplished without a concomitant loss in resolution as would normally be expected when non-linear fields are used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.