Method of isolating a single mass or narrow range of masses and/or enhancing the sensitivity of an ion trap mass spectrometer
US4818869A · kind A · utility
44Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | May 22, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/427
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The method of isolating ions of single mass or narrow range of masses in a three-dimensional ion trap comprising ionizing a sample in the trap at a low RF voltage, increasing the RF voltage and applying a DC voltage whereby to eject unwanted ions while isolating ions of said single mass or narrow range of masses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.