Variations in the chemical composition within pine (Pinus sylvestris) trunks determined by diffuse reflectance infrared spectroscopy and chemometrics |
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Authors: | Timo-Jaakko Toivanen Raimo Alén |
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Institution: | 1. Laboratory of Applied Chemistry, University of Jyv?skyl?, P.O. Box 35, FIN ?40014, Jyv?skyl?, Finland
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Abstract: | The feasibility of using DRIFT (diffuse reflectance infrared Fourier transform) spectroscopy combined with a multivariate
analysis method (a PLS (projection to latent structures), regression) for predicting the distribution of the main organic
constituents (cellulose, glucomannan, xylan, lignin, and extractives) within the Scots pine (Pinus sylvestris) stemwood was examined. PLS calibrations were carried out to establish a mathematical correlation between the data sets of
conventional (“wet-chemistry-based”) wood analysis and the DRIFT spectra of the corresponding wood samples. Based on this
approach, different surface maps on variations in the content of the main organic constituents within the stemwood matrix
were shown. |
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Keywords: | DRIFT Carbohydrates Distribution Extractives Lignin Multivariate analysis PLS Scots pine Stemwood |
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