Flow cells utilizing photometric techniques
US6734961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Mar 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/064
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow cell for transporting fluid in a radiant energy field includes a cell structure having a tube extending therethrough including a radiant energy blocking portion integral therewith. In a particular embodiment, the cell structure includes one or more end caps having a protrusion extending therefrom, wherein the protrusion may be inserted into the tube to create a fluid seal, the end caps including open channels for transporting fluid and radiant energy therethrough, and the tube in the cell structure includes an efficient radiant energy transmission lining that is spaced from the end cap protrusions, thereby forming a gap volume in the flow cell open channel, which gap volume may be calibrated such that radiant energy losses may be standardized in respective flow cells transporting fluids having various indexes of refraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.