Ion transfer device for mass spectrometry with selectable bores
US10388501B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2018 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Apr 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ion transfer device for transferring ions from a first chamber to a second, reduced-pressure chamber includes a tube and a bore selector. The tube includes a plurality of tube bores. The bore selector is positioned at an inlet end of the tube and includes an inlet port. The tube is movable relative to the bore selector, and/or the bore selector is movable relative to the tube, to align the inlet port with a selected one of the tube bores while blocking the other tube bores. Alignment of the inlet port with the selected tube bore defines an ion transfer path from the first chamber, through the selected tube bore, and to the second chamber. The ion transfer device may be utilized, for example, in an atmospheric-pressure interface of a mass spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.