Time-of-flight bacteria analyser using metastable source ionization
US6627881B1 · kind B1 · utility
42Cited by
4References
16Claims
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Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Feb 14, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For analyzing micro-organisms and other high-molecular weight species, a sample of the substance to be analyzed is prepared, placed in a pyrolyzer where it is pyrolyzed with a selected temperature program to provide pyrolyzed product of a high-dalton mass range. The product is ionized using metastable atoms which results in efficient ionization with little fragmentation. The metastable atoms are generated using a generator that provides a beam of metastable atoms which is basically free from ions. The ionized product is then analyzed using a high acquisition rate mass analyzer, such as a time-of-flight (TOF) analyzer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.