Pathlength-independent methods for optically determining material composition
US7009180B2 · kind B2 · utility
91Cited by
50References
45Claims
0Family size
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Key dates
| Filing date | Dec 12, 2002 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/3271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method uses spectroscopy to determine an analyte concentration in a sample. The method includes producing an absorbance spectrum of the sample. The method further includes shifting the absorbance spectrum to zero in a wavelength region. The method further includes subtracting a water or other substance contribution from the absorbance spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.