Solid phase extraction
US5242598A · kind A · utility
8Cited by
25References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Aug 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/924
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrophobic contaminants are removed from a particulate matter by contacting the particulate matter with a solid organic phase. The hydrophobic contaminants have greater affinity for the solid organic phase than for the particulate matter and repartition to the solid organic phase. The solid organic phase is then separated from the particulate matter. A typical embodiment utilizes polystyrene particles to remove polychlorinated biphenyls from soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.