Method for separation and enrichment of isotopes in gaseous phase
US6831271B1 · kind B1 · utility
27Cited by
19References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 2001 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/044
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method for separating and enriching stable isotopes in gas phase using the principles of high field asymmetric waveform ion mobility spectrometry, substantially at atmospheric pressure (760 torr) and substantially at room temperature (298 K). Specifically, the method of the present invention may be used to separate and enrich isotopes of chlorine. Electrospray ionization may be used to generate a gaseous mixture of ions and the ion beam exiting the high field asymmetric waveform ion mobility spectrometer may be sampled into a mass spectrometer for isotope identification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.