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Fluorescence analyzer for lignin

Patent ·
OSTI ID:868802
 [1];  [2];  [3]
  1. Salem, OH
  2. Hubbard, OH
  3. Alliance, OH
+ Show Author Affiliations

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.

Research Organization:
BABCOCK & WILCOX CO
DOE Contract Number:
FC05-90CE40905
Assignee:
Babcock & Wilcox Company (New Orleans, LA)
Patent Number(s):
US 5216483
OSTI ID:
868802
Country of Publication:
United States
Language:
English

References (4)

A procedure for tracing of kraft mill effluent from an ocean outfall by constituent fluorescence journal August 1971
A modified fluorometric method for measurement of lignin sulfonates and its in situ application in natural waters journal December 1974
Laser Excited Fluorescence Studies Of Black Liquor conference October 1986
Contribution to On-Line Kraft Pulping Control journal January 1980

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Related Subjects

/356/162/250/
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