Process for effecting high efficiency separations by capillary electrophoresis
US5192405A · kind A · utility
51Cited by
1References
16Claims
0Family size
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Key dates
| Filing date | Sep 9, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Sep 9, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/44747
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Capillary electrophoresis is effected by introducing into a capillary a buffer solution a zwitterion composition comprised of substantially equal numbers of positive and negative charges when the negative charges are desired from sulfonate or sulfate groups and the positive charges are derived from quaternary amines, quaternary phosphines or quanternary arsines. A sample is introduced into the capillary and an electric field is established through the capillary to cause the sample to migrate through the capillary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.