Method for analyzing impurities in a gas stream
US6473175B1 · kind B1 · utility
5Cited by
3References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Apr 19, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0018
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of analyzing a sample gas for the presence of at least one gas impurity by combining a stream of sample gas with a stream of carrier gas to provide a combined stream of gas, directing the combined stream of gas through a column which preferentially removes the sample gas from the combined stream to produce a retentate stream of gas, and analyzing the retentate stream of gas for the presence of the at least one gas impurity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.