Vented filter for automatic HPLC loop loading
US8065928B2 · kind B2 · utility
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1References
13Claims
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Key dates
| Filing date | Nov 3, 2008 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jul 6, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vented filter is placed at the HPLC (High Performance Liquid Chromatography) loop entry port of an HPLC injector valve. The vented filter prevents the push gas used to deliver the crude radiolabeled product from over-pushing the liquid to waste. Push gas is vented off when the entire crude liquid product has passed through the vented filter and been loaded onto the HPLC loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.