Stationary separation system for mixture components
US8287712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2006 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Nov 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/447
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Components of a mixture are separated by feeding charged molecules of the components into a end surface of a suitable medium, for example a gel. The molecules are drawn in a first direction through the medium by means of an DC electric field, while at the same time being subjected to an alternating voltage with a strongly asymmetric profile in a direction transverse to the first direction. The nonlinear behavior of the electrically-generated migration causes a large number of molecules to migrate transversely out of the medium while only a small number of molecules reach the opposite end surface of the medium. A superimposed DC voltage in the transverse direction selects which of the mixture components migrate all the way through the medium in the first direction. The separated components can be sampled from the opposite end surface and from points on the upper and lower medium surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.