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Title: Fluorescence analyzer for lignin

Abstract

A method and apparatus for measuring lignin concentration in a sample of wood pulp or black liquor comprises a light emitting arrangement for emitting an excitation light through optical fiber bundles into a probe which has an undiluted sensing end facing the sample. The excitation light causes the lignin concentration to produce fluorescent emission light which is then conveyed through the probe to analyzing equipment which measures the intensity of the emission light. Measures a This invention was made with Government support under Contract Number DOE: DE-FC05-90CE40905 awarded by the Department of Energy (DOE). The Government has certain rights in this invention.

Inventors:
 [1];  [2];  [3]
  1. Salem, OH
  2. Hubbard, OH
  3. Alliance, OH
Issue Date:
Research Org.:
BABCOCK & WILCOX CO
OSTI Identifier:
868802
Patent Number(s):
5216483
Assignee:
Babcock & Wilcox Company (New Orleans, LA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS
DOE Contract Number:  
FC05-90CE40905
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fluorescence; analyzer; lignin; method; apparatus; measuring; concentration; sample; wood; pulp; black; liquor; comprises; light; emitting; arrangement; excitation; optical; fiber; bundles; probe; undiluted; sensing; facing; causes; produce; fluorescent; emission; conveyed; analyzing; equipment; measures; intensity; government; support; contract; de-fc05-90ce40905; awarded; department; energy; rights; optical fiber; excitation light; light emitting; black liquor; government support; lignin concentration; wood pulp; fiber bundle; fiber bundles; emission light; fluorescent emission; /356/162/250/

Citation Formats

Berthold, John W, Malito, Michael L, and Jeffers, Larry. Fluorescence analyzer for lignin. United States: N. p., 1993. Web.
Berthold, John W, Malito, Michael L, & Jeffers, Larry. Fluorescence analyzer for lignin. United States.
Berthold, John W, Malito, Michael L, and Jeffers, Larry. Fri . "Fluorescence analyzer for lignin". United States. https://www.osti.gov/servlets/purl/868802.
@article{osti_868802,
title = {Fluorescence analyzer for lignin},
author = {Berthold, John W and Malito, Michael L and Jeffers, Larry},
abstractNote = {A method and apparatus for measuring lignin concentration in a sample of wood pulp or black liquor comprises a light emitting arrangement for emitting an excitation light through optical fiber bundles into a probe which has an undiluted sensing end facing the sample. The excitation light causes the lignin concentration to produce fluorescent emission light which is then conveyed through the probe to analyzing equipment which measures the intensity of the emission light. Measures a This invention was made with Government support under Contract Number DOE: DE-FC05-90CE40905 awarded by the Department of Energy (DOE). The Government has certain rights in this invention.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

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