Ion mobility filter
US11543385B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 5, 2018 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Oct 28, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/624
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion mobility filter is disclosed. The present invention relates to but not exclusively a field asymmetric ion spectrometry filter. For example, we describe an ion filter for filtering ions in a gas sample. The ion filter is comprised of a plurality of electrodes, a first ion channel, and a second ion channel. The first ion channel filters ions from a target chemical in the gas sample, defines a gap between a first pair of electrodes in the plurality of electrodes, and has a first ion channel gap width. The second ion channel filters ions from the target chemical in the gas sample, defines a gap between a second pair of electrodes in the plurality of electrodes, and has a second ion channel gap width. The first ion channel gap width is greater than the second ion channel gap width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.