Ion mobility spectrometer and method of using the same
US9147565B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Dec 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/622
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting constituents in a sample includes generating a plurality of ions in an ionization region. The method also includes preventing the plurality of ions in the ionization region from flowing into a drift region through inducing a first voltage in a device positioned between the two regions. The method further includes injecting at least a portion of the ions from the ionization region into the drift region. The method also includes regulating the voltage in the device to a second voltage for a first predetermined temporal period, the second voltage less than the first voltage. The method further includes regulating the voltage in the device to the first voltage. The method also includes regulating the voltage in the device to the second voltage for a second predetermined temporal period, the second predetermined temporal period different from the first predetermined temporal period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.