Sample sweeping and injection device for chromatography apparatus
US4168235A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1978 |
| Grant date | Sep 18, 1979 |
| Priority date | — |
| Expiry date | Feb 28, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In this device, for sweeping and injecting samples into the separation column of a chromatography apparatus, the separation column is secured to an opening connecting with a conduit which feeds a stream of carrier liquid to the device. The device subdivides a stream of carrier liquid into a primary stream and a secondary stream and feeds the primary stream over the entire cross section of the entrance to a separation column. Simultaneously feed of the secondary stream axially to the entrance of the separation column is performed while introducing the sample into the secondary stream. The device is usable particularly in liquid-phase chromatography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.