Composition and column used in HPLC
US5993653A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Aug 11, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An alkyl-phenyl bonded a stationary phase for use in reversed-phase liquid chromatography, having five to ten carbon atoms in the alkyl group, is disclosed. The alkyl-phenyl bonded phase has its unique selectivity, and it is chemically stable in both acidic and basic environments as well as having high retention capacity, hence high resolution. A method for preparing the alkyl-phenyl bonded phase and a column inside of which the alkyl-phenyl bonded phase is packed with are also disclosed. Additionally, a method for performing liquid chromatography and a mixed stationary phase which has more than one alkyl-phenyl phases are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.