Separation column from chromatography, medium for solid phase extraction and sample injection system for chromatography
US7211189B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 23, 2004 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Aug 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/009
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A separation column for chromatography or a medium for solid phase extraction, which comprises a hollow capillary and a collected body packed in the hollow capillary and serving as a stationary phase, the collected body comprising long fibers having an adsorbing ability selective towards a target solute and arranged in the axial direction of the capillary, and a sample injection system which comprises the foregoing hollow capillary incorporated into a loop of a valve or a passage connecting two valves, the valve(s) being used as an injector for the chromatography. The use of the polymeric long fibers, which have chemical structures specially designed so that they can specifically interact with a target substance (a solute or an analyte) to be analyzed, permits the selective or preferential extraction and/or concentration of the solute.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.