Ion guide and mass spectrometer using same
US10204773B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2015 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Feb 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A first rod electrode set has a first center axis, into which ions and air current are introduced. A second rod electrode set has a second center axis at a distance from the first center axis, from which the ions are discharged. A power supply applies voltages to the first rod electrode set and the second rod electrode set. The first rod electrode set and the second rod electrode set have a region where the sets overlap each other in the longitudinal direction, and form a single multipole ion guide by being combined to each other in the region. Different offset DC voltages are applied to the first rod electrode set and the second rod electrode set, respectively, and a DC potential for moving the ions to the second rod electrode set in the region is formed, the ions having been guided by the first rod electrode set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.