Methods and systems for analyzing airborne compounds
US9494514B2 · kind B2 · utility
0Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Apr 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/6486
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In systems and methods for analyzing traces of airborne compounds, the air to be analyzed is circulated for a given length of time through a small-diameter analysis tube while lowering the temperature of the air at the entrance to the analysis tube. Condensation and deposits of compounds are formed on the inner walls of the analysis tube. A scraping liquid is circulated through the analysis tube to scrape off the deposits. The compounds in the deposits are concentrated at the front of this liquid. The front of the liquid is then analyzed to identify the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.