Apparatus and method for pulsed mode charge detection mass spectrometry
US12112936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2020 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | May 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/4265
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge detection mass spectrometer includes an ion trap configured to receive and store ions therein and to selectively release stored ions therefrom, and an electrostatic linear ion trap (ELIT) spaced apart from the ion trap, the ELIT including first and second ion mirrors and a charge detection cylinder positioned therebetween, and means for selectively controlling the ion trap to release at least some of the stored ions therefrom to travel toward and into the ELIT, and for controlling the first and second ion mirrors in a manner which traps in the ELIT a single one of the ions traveling therein and causes the trapped ion to oscillate back and forth between the first and second ion mirrors each time passing through and inducing a corresponding charge on the charge detection cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.