System and method for grouping precursor and fragment ions using selected ion chromatograms
US7800055B2 · kind B2 · utility
15Cited by
3References
20Claims
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Key dates
| Filing date | May 20, 2005 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Aug 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
LC/MS data generated by an LC/MS system is analyzed to determine groupings of ions associated with originating molecules. Ions are grouped initially according to retention time, for example, using retention time or chromatographic peaks in mass chromatograms. After initial groupings are determined based on retention time, ion peak shapes are compared to determine whether ions should be excluded. Ions having peak shapes not matching other ions, or alternatively a reference peak shape, are excluded from the group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.