Apparatus for sampling & analysis of thermally-labile species and a method relating thereto
US6520033B1 · kind B1 · utility
7Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2223
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for, and a method of, sampling and analyzing thermally-labile chemical species, comprises a quartz tube having a filter member positioned in the bore of the tube. The filter member comprises a plug of quartz beads having a layer of quartz frits on either side. A fluid (gas or liquid) carrying one or more chemical substances associated with particulate matter is passed through the tube, the particulate material being collected by the quartz beads. After sample collection, the material remaining/retained from the original sample is removed, as for example by thermal desorption, and the material is then analyzed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.