Time-of-flight mass spectrometry analysis of biomolecules
US6057543A · kind A · utility
105Cited by
95References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1999 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Jul 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/403
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A time-of-flight mass spectrometer for measuring the mass-to-charge ratio of a sample molecule is described. The spectrometer provides independent control of the electric field experienced by the sample before and during ion extraction. Methods of mass spectrometry utilizing the principles of this invention reduce matrix background, induce fast fragmentation, and control the transfer of energy prior to ion extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.