System and method for determining flux of isotopologues
US8681336B2 · kind B2 · utility
4Cited by
2References
32Claims
0Family size
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Key dates
| Filing date | Mar 12, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | May 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system comprising measuring concentrations of first and second isotopologues of a gas of interest within a first cavity that is sealably in contact with a soil location through an inlet membrane, and the first cavity being defined by chamber walls having openings covered by outlet membranes. Reference concentrations of the first and second isotopologues are measured in a second cavity having a closed bottom, the second cavity being defined by chamber walls having openings covered by more outlet membranes. Relative flux of the isotopologues can be calculated using the measured concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.