High-throughput liquid-absorption preconcentrator sampling methods
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 12, 1994
Grant Date -
N/A
app pub date -
Dec 18, 1992
filing date -
Aug 4, 1986
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for detecting trace concentrations of an analyte in air includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container comprising a wettable material. The wettable material is continuously wetted with an analyte-sorbing liquid which flows from one part of the container to a lower end. Sampled air flows through the container in contact with the wetted material with a swirling motion which results in efficient transfer of analyte vapors or aerosol particles to the sorbing liquid and preconcentration of traces of analyte in the liquid. The preconcentrated traces of analyte may be either detected within the container or removed therefrom for injection into a separate detection means or for subsequent analysis.
First Claim
Family
International Classification(s)
Cited Art Landscape
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| * 4549965 Liquid chromatographic method and apparatus with membrane for post-column derivatization | 16 | 1984 | |
|
|
|||
| * 4954318 Optical sensor | 65 | 1987 | |
|
|
|||
| * 4533367 Gas scrubbing method using gas liquid contact in a particulate bed | 24 | 1982 | |
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully