On-line measurement of lignin in wood pulp by color shift of fluorescence
Patent
·
OSTI ID:187062
Lignin concentrations from wood pulp samples are measured by applying an excitation light at a selected wavelength to the samples in order to cause the lignin to emit fluorescence. A spectral distribution of the fluorescence emission is then determined. The lignin concentration is then calculated based on the spectral distribution signal. The spectral distribution is quantified by either a wavelength centroid method or a band ratio method. 6 figs.
- Research Organization:
- Babcock and Wilcox Co
- DOE Contract Number:
- FC05-90CE40905
- Assignee:
- Babcock and Wilcox Co., New Orleans, LA (United States)
- Patent Number(s):
- US 5,486,915/A/
- Application Number:
- PAN: 8-226,801
- OSTI ID:
- 187062
- Country of Publication:
- United States
- Language:
- English
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