Automatic installation for liquid chromatography
US4478713A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Sep 23, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the automatic installation for liquid chromatography according to the invention, the container of product to be fractionated is associated to a measuring container and is provided, as are the containers of eluents, with low level detector means; feed valves are interposed between said containers and the injection pump whereas output valves are interposed between the outlet from the column and the collector containers; a control unit comprises a safety device connected to the low level detectors to control the stoppage of the pump whenever necessary, and a control device receiving the signals from detection means connected to the output of the column and controlling the measuring container and said valves to perform successive cycles of chromatography each one including the steps of injecting a quantity of product, admitting at least one eluent and collecting the or each corresponding fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.