Methods and apparatus for transport of airborne molecules using an active cyclical vapor/liquid exchange
US8792095B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2010 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Mar 10, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for detection and/or analysis of gas phase analytes and chemical compounds. The apparatus can be formed with microfluidic cells containing a selected fluid that interacts with the analyte(s), wherein the fluid can selectively transition between a vapor phase and a liquid phase. During condensation of the fluid, the population of analytes present within the vapor phase region of the fluid can be transported into the liquid phase region of the fluid within the microfluidic cells. During evaporation of the fluid, the analytes can be substantially retained within liquid phase region of the fluid and within the cells. Repetitive cycling of this vapor/liquid exchange can provide a build-up of the analytes within the microfluidic cells where they can be detected/analyzed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.