Sorbent devices with longitudinal diffusion paths and methods of using them
US8561484B2 · kind B2 · utility
9Cited by
41References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2010 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Mar 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/405
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Certain aspects and examples are directed to sorbent devices and methods of using them. In certain embodiments, a sorbent device comprising a body comprising a sampling inlet, a base and a longitudinal diffusion path between the inlet and the base is provided. In some embodiments, the sorbent device can include at least two sorbent materials fluidically coupled to the longitudinal diffusion path, in which the sorbent materials are arranged from a material with a weakest sorbent strength to a material with a strongest sorbent strength with the weakest sorbent strength material adjacent to the sampling inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.