Method and apparatus for membrane extraction of hydrolysis contaminates
US4891137A · kind A · utility
9Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1989 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Mar 3, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process removes FMOC--OH which is an undesirable by-product of the derivatization of amino acids by FMOC. The process uses a silicone rubber membrane extractor cell. The sample containing the FMOC--OH is held in a silicone rubber tubing, while pentane flows past the outside of the tube; the FMOC--OH is thus extracted from the sample into the pentane. The process is integrated into a conventional high performance liquid chromatography system and is readily automated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.