Automated sample concentrator for trace components
US4500432A · kind A · utility
44Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1983 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Oct 4, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/407
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Concentration of the solutes contained in a liquid solvent is effected by passing the solvent through a first trapping means that adsorbs them, flushing the first trapping means with supercritical fluid and reducing its solubility parameter in a second trapping means so that the latter can adsorb desired solutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.