Liquid chromatography and apparatus using the same
US4806250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1988 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Feb 26, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8411
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Desired components can be simply and economically separated and recovered from a sample solution having a complicated composition through a liquid chromatography by passing the sample solution through a separation column, thereby separating components contained therein in the separation column, then selectively passing the eluate from the separation column through a trapping column according to a desired component, thereby trapping the desired component in the trapping column, while discarding or recycling the effluent eluate from the trapping column, and then passing another eluting solution composed of a volatile substance when dried under reduced pressure through the trapping column, thereby recovering eluate containing the desired component from the trapping column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.