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Title: On-line measurement of lignin in wood pulp by color shift of fluorescence

Abstract

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.

Inventors:
 [1];  [2]
  1. Washington Township, Stark County, OH
  2. Liberty Township, Trumbull County, OH
Issue Date:
Research Org.:
BABCOCK & WILCOX CO
OSTI Identifier:
870267
Patent Number(s):
5486915
Assignee:
Babcock & Wilcox Company (New Orleans, LA)
DOE Contract Number:  
FC05-90CE40905
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
on-line; measurement; lignin; wood; pulp; color; shift; fluorescence; concentrations; samples; measured; applying; excitation; light; selected; wavelength; emit; spectral; distribution; emission; determined; concentration; calculated; based; signal; quantified; centroid; method; band; ratio; spectral distribution; selected wavelength; excitation light; fluorescence emission; lignin concentration; wood pulp; calculated based; ratio method; selected wave; /356/162/250/

Citation Formats

Jeffers, Larry A, and Malito, Michael L. On-line measurement of lignin in wood pulp by color shift of fluorescence. United States: N. p., 1996. Web.
Jeffers, Larry A, & Malito, Michael L. On-line measurement of lignin in wood pulp by color shift of fluorescence. United States.
Jeffers, Larry A, and Malito, Michael L. Mon . "On-line measurement of lignin in wood pulp by color shift of fluorescence". United States. https://www.osti.gov/servlets/purl/870267.
@article{osti_870267,
title = {On-line measurement of lignin in wood pulp by color shift of fluorescence},
author = {Jeffers, Larry A and Malito, Michael L},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

Patent:

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