Integrated illumination-detection flow cell for liquid chromatography
US11169126B2 · kind B2 · utility
1Cited by
18References
7Claims
0Family size
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Key dates
| Filing date | Feb 22, 2018 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Oct 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0627
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid chromatography flow cell including an integrated light source and an integrated detection chamber. The integrated light source includes a plurality of light emitting diodes (LEDs), wherein each LED emits light of a specific wavelength. The light emitted from the integrated light source is directed to pass through a sample in a flow chamber of the flow cell without any optical conditioning, and the light not absorbed by the sample flows out of the flow chamber directly into the integrated detection chamber, where an intensity of the unabsorbed light is measured by detectors coupled to the integrated chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.