Pre-column for preconcentrating substances to be chromatographed as well as device for a liquid chromatography system and coupling member for said device
US4554071A · kind A · utility
38Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1984 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Sep 7, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a pre-column of pressure-resistant material for preconcentrating at elevated pressure substances to be chromatographed, which column consists of a vessel-shaped body which narrows internally towards the two ends and has means for sealing connections, upstream to an inlet tube for the liquid to be preconcentrated and downstream to a separating column. The invention also relates to a device for a liquid chromatography system, comprising one or more pre-columns, optionally one or more separating columns, and a coupling member, and to a coupling member for said device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.