Open channel solid phase extraction systems and methods
US7151167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2004 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Jun 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/062
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides, inter alia, methods of extracting an analyte from a solution comprising the steps of: passing a solution containing an analyte through an extraction channel having a solid phase extraction surface, whereby analyte adsorbs to the extraction surface of said extraction channel; and eluting the analyte by passing a desorption solution through the channel, wherein the method includes a step wherein a multiple-pass solution is passed through at least some substantial portion of the extraction channel at least twice. Non-limiting examples multiple-pass solutions include a solution containing an analyte, a wash solution and/or a desorption solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.