Ion mobility spectrometer apparatus and methods
US7705296B2 · kind B2 · utility
11Cited by
12References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Jul 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/062
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion mobility spectrometer includes a protective housing. A drift tube having at least one inlet and at least one outlet confines a drift gas. An ion gate is positioned in the drift tube. The ion gate defines a reaction region and a drift region in the drift tube. An ion detector is positioned in the drift tube downstream of the ion gate at an end of the drift region. A helical resistive wire coil is positioned around the drift tube. A power supply generates an electric field in the helical resistive wire coil that rapidly controls the temperature of the drift gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.