Carrier ampholytes of high pH range
US7022214B2 · kind B2 · utility
88Cited by
9References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2004 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Oct 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/44747
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Carboxylic acid-substituted polyalkylene polyamines in which amine nitrogen atoms on the polyamine backbone structure are replaced by guanidine groups provide a pH range extending into high pH values. These substances are useful as carrier ampholytes in isoelectric focusing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.