Isotopic pattern recognition
US10658165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A measure of abundance is determined for an element or element combination within a sample, the element or element combination having at least one isotopic variant. An isotopic mass spectral pattern is identified for the element or element combination that indicates an expected abundance and expected mass-to-charge ratio difference for each isotopic variant. These are identified relative to the respective abundance and mass-to-charge ratio of a principal isotope. The isotopic mass spectral pattern is compared with mass spectral data from a molecular mass analysis of the sample to identify peak groups, each matching the isotopic mass spectral pattern. A measure of abundance is determined for the element or element combination as a function of the intensity measurement of one or more peaks from each of the identified peak groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.