Method of making liquid chromatography packing materials
US4959340A · kind A · utility
7Cited by
18References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1989 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Apr 10, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8822
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Packing materials for use in liquid chromatographic analysis are prepared by contacting a porous support, such as porous silica, with a ketal silane to form ketal blocked diol groups on the surfaces thereof. An end-capping reagent such as a trimethylsilyl reagent may be added. In addition, the ketal blocked diol groups may be further hydrolyzed to diol groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.