Identification of material inclusions in pulp and paper using Raman spectroscopy
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United States of America Patent
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Jun 1, 2004
Grant Date -
Apr 24, 2003
app pub date -
Oct 23, 2001
filing date -
Oct 23, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Pulp and/or paper samples are scanned with a Laser Raman Spectroscopic probe, utilizing Raman spectroscopic technology, to generate Raman spectroscopic images of all or selected ones of the constituents and/or contaminants contained in the sample, to compare the same with a library of Raman spectroscopic fingerprints of known constituents and/or contaminants, and to identify and communicate data on all or selected ones of the constituents and/or contaminants for purposes of controlling the paper making process and/or determination of the quality of the paper produced.
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