Introducing samples into supercritical fluid chromatography systems
US9764251B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Mar 5, 2013 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A supercritical fluid chromatography system is provided with an injection valve subsystem for introducing a sample into a flow of mobile phase fluid. The injection valve subsystem includes an auxiliary valve and an inject valve. The operations of the auxiliary and inject valves are coordinated in such a manner as to reduce sample carry-over and system pressure perturbations occurring during sample injection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.