Portable quadrupole ion trap mass spectrometer
US8278621B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2011 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/424
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A portable quadrupole ion trap mass spectrometer includes an electron emission source, an ion trap including a ring electrode and first and second end cap electrodes arranged opposite sides of the ring electrode, and an ion detector for detecting an amount of ions discharged from the ion trap. The first end cap electrode includes a first aperture through which the electrons emitted by the electron source enter the ion trap, and the second end cap electrode includes a second aperture through which ions are discharged the ion trap. A first electron multiplier is disposed in the first aperture of the first end cap electrode and multiplies an amount of the electrons and input to the ion trap. An ion detector detects an amount of the ions discharged from the ion trap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.