Time-of-flight mass spectrometry analysis of biomolecules
US5625184A · kind A · utility
185Cited by
24References
109Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | May 19, 2015 |
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 the 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.