Sample pre-compression valve for liquid chromatography
US11156590B2 · kind B2 · utility
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23References
14Claims
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Key dates
| Filing date | Apr 17, 2020 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Apr 20, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample pre-compression valve for liquid chromatography applications is described. The valve enables a sample pre-compression while the solvent pump continues to conduct solvent to the chromatography column. Furthermore, the sample pre-compression valve includes an INJECT position, a LOAD position and a PUMP PURGE position, in which all connecting grooves of the valve are flushed with liquid. A use of the sample pre-compression valve is described as part of a sampler for liquid chromatography applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.