pH stable chromatographic media using templated multilayer organic/inorganic grafting
US7563367B2 · kind B2 · utility
4Cited by
11References
15Claims
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Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Feb 26, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/3289
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An advanced silica gel sorbent for use in chromatographic separations that has been chemically modified by surface polycondensation of a trifunctional and/or difunctional organosilane. The chromatographic media exhibits a wider pH range and improved pH stability as compared to other silica gel based sorbents, while retaining all other positive aspects attributed to silica gel based sorbents. A method of forming the advanced silica gel sorbent by Templated Multilayer Inorganic/Organic Grafting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.