Ion mobility spectrometer
US7164122B2 · kind B2 · utility
20Cited by
22References
92Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2005 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Jul 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to an improved ion mobility spectrometer and method for the analysis of chemical samples. The improvements are realized in the optimization of resolution and sensitivity. Increases in sensitivity are realized by preserving a narrow spatial distribution of migrating ions through the use of periodic/hyperbolic field focusing. Use of a plurality of drift cells and a new RF field focusing interface are discussed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.