High stability porous zirconium oxide spherules
US5141634A · kind A · utility
19Cited by
32References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1991 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Feb 12, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/525
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a stable stationary phase for chromatography which comprises porous ZrO.sub.2 spherules coated with a cross-linked polymer coating wherein said coated spherules have a pore size from about 20-500 .ANG. and a particle diameter range of about 0.5-500 microns, and are stable in basic media to pHs of up to about 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.