Surface preparation and direction dependence of diffuse reflectance infrared Fourier transform spectra of wood

L. Tolvaj, Katsuya Mitsui

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effect of roughness changes and the effect of the angle between the fiber direction and the incident light were studied. The DRIFT spectra of several wood species were recorded at different angles between the fiber direction and the projection of the incident light on the surface. After measuring the IR spectra, the surface of the sample was graded with sandpaper grit 600 and 120, respectively. The IR measurement was repeated after all surface modifications. Spectral intensities were calculated in K-M units. It was confirmed that the DRIFT technique is a convenient way to obtain valuable IR spectra of solid wood surfaces. To gain reproducible DRIFT spectra of wood, the surface roughness, the anatomical position of the surface, and the angle between the fiber direction and the incident IR beam must be kept constant. By using sandpaper for surface preparation, the direction dependence of the DRIFT spectra was diminished.

Original languageEnglish
Pages (from-to)1137-1140
Number of pages4
JournalApplied Spectroscopy
Volume58
Issue number9
DOIs
Publication statusPublished - Sep 2004

Fingerprint

Wood
Fourier transforms
Infrared radiation
reflectance
preparation
Fibers
Surface roughness
fibers
grit
Surface treatment
Direction compound
surface roughness
roughness
projection

ASJC Scopus subject areas

  • Spectroscopy
  • Instrumentation

Cite this

Surface preparation and direction dependence of diffuse reflectance infrared Fourier transform spectra of wood. / Tolvaj, L.; Mitsui, Katsuya.

In: Applied Spectroscopy, Vol. 58, No. 9, 09.2004, p. 1137-1140.

Research output: Contribution to journalArticle

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