skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and apparatus for assaying wood pulp fibers

Abstract

Paper pulp is added to a stain solution. The stain solution and pulp fibers are mixed to form a slurry. Samples are removed from the slurry and are admixed with dilution water and a bleach. Then, the fibers are moved into a flow cell where they are subjected to a light source adapted to stimulate fluorescence from the stained pulp fiber. Before the fiber slurry enters the flow cell it is mixed with a dilution water of bleach to reduce background fluorescence. The fluorescent light is collimated and directed through a dichroic filter onto a fluorescence splitting dichroic filter.

Inventors:
 [1];  [2];  [3];  [4];  [5];  [2]
  1. Bellevue, WA
  2. Seattle, WA
  3. Neenah, WI
  4. Issaquah, WA
  5. San Mateo, CA
Issue Date:
Research Org.:
University of Washington (Seattle, WA)
Sponsoring Org.:
USDOE
OSTI Identifier:
988042
Patent Number(s):
7537732
Application Number:
10/788,548
Assignee:
University of Washington (Seattle, WA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
FC07-97ID13539
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Gustafson, Richard, Callis, James B, Mathews, Jeffrey D, Robinson, John, Bruckner, Carsten A, and Suvamakich, Kuntinee. Method and apparatus for assaying wood pulp fibers. United States: N. p., 2009. Web.
Gustafson, Richard, Callis, James B, Mathews, Jeffrey D, Robinson, John, Bruckner, Carsten A, & Suvamakich, Kuntinee. Method and apparatus for assaying wood pulp fibers. United States.
Gustafson, Richard, Callis, James B, Mathews, Jeffrey D, Robinson, John, Bruckner, Carsten A, and Suvamakich, Kuntinee. Tue . "Method and apparatus for assaying wood pulp fibers". United States. https://www.osti.gov/servlets/purl/988042.
@article{osti_988042,
title = {Method and apparatus for assaying wood pulp fibers},
author = {Gustafson, Richard and Callis, James B and Mathews, Jeffrey D and Robinson, John and Bruckner, Carsten A and Suvamakich, Kuntinee},
abstractNote = {Paper pulp is added to a stain solution. The stain solution and pulp fibers are mixed to form a slurry. Samples are removed from the slurry and are admixed with dilution water and a bleach. Then, the fibers are moved into a flow cell where they are subjected to a light source adapted to stimulate fluorescence from the stained pulp fiber. Before the fiber slurry enters the flow cell it is mixed with a dilution water of bleach to reduce background fluorescence. The fluorescent light is collimated and directed through a dichroic filter onto a fluorescence splitting dichroic filter.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {5}
}

Patent:

Save / Share: