Rapid Lignin Measurement in Hardwood Pulp Samples by Near-Infrared Fourier Transform Raman Spectroscopy

Zhaohui Sun, Amin Ibrahim, Philip B. Oldham, Tor P. Schultz, Terrance E. Conners

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

FT-Raman spectroscopy is used for rapid quantification of hardwood pulp lignin. The ratio of the integrated area of the lignin band near 1600 cm-1 to that of cellulose in the region of 1200-1010 cm-1 behaves linearly with measured κ number for two separate sets of kraft hardwood pulp samples. Spectra and quantitative results of the hardwood samples, both with and without base line correction, are compared. Sources of error and measurement reproducibility are discussed. The method described shows potential for at-line process analysis of wood pulp.

Original languageEnglish
Pages (from-to)3088-3091
Number of pages4
JournalJournal of Agricultural and Food Chemistry
Volume45
Issue number8
DOIs
StatePublished - Aug 1997

Keywords

  • FT-Raman spectroscopy
  • Lignin
  • Wood pulp
  • κ number

ASJC Scopus subject areas

  • Chemistry (all)
  • Agricultural and Biological Sciences (all)

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