Chromatographic columns and separation devices comprising a superficially porous material; and use thereof for supercritical fluid chromatography and other chromatography
US11577179B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Jun 10, 2014 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Apr 12, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides methods for performing supercritical fluid chromatography comprising loading a sample to be separated by supercritical fluid chromatography onto a stationary phase comprising a spherical, monodisperse, core-shell particulate material comprising a nonporous core and one or more layers of a porous shell material surrounding the core, wherein the particles are sized less than 2 microns; and performing supercritical fluid chromatography to separate the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.