Guard cartridge for chromatography
US5863428A · kind A · utility
26Cited by
31References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Apr 1, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A new type of guard cartridge has been provided to prevent contamination of liquid chromatography (LC) columns by particulate and soluble contaminants. The cartridge is prepared by packing an empty tube with a chromatographic stationary phase and the packed tube is then sealed on both ends with porus sheets held in place by two collars. The cartridge gives minimum disturbance on column performance and significantly decreases the cost of production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.