Calibration function for time-of-flight mass spectrometers with extreme mass accuracy
US8581183B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Sep 14, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Dec 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A calibration function for time-of-flight mass spectrometers that converts ion times of flight into mass to charge ratios, takes into account not only the time of flight of a specific ionic species, but also the ion signal intensity of that ionic species. Use of the conversion function reduces nonsystematic deviations of the calculated mass values from the true mass values previously experienced in time of flight mass spectrometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.