Closed path ion mobility spectrometer having a common ion inlet and outlet
US10788453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2019 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Mar 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion mobility spectrometer includes a drift tube responsive to application of at least a first voltage to establish a first electric field therein configured to cause ions within the drift tube to move along and about the drift tube while separating from one another as a function of ion mobility, and a transition region coupled to opposed ends of the first drift tube such that the drift tube and the transition region together define a closed path. The transition region is responsive to application of at least a second voltage to cause the ions to move along and about the closed path, to application of at least a third voltage to selectively pass ions into the drift tube and to application of at least a fourth voltage to selectively pass ions out of the drift tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.