Overall, spectroscopic techniques can be suggested as screening methods for distribution of impregnation chemicals of esterified wood. The results show that using spectroscopic methods such as ATR-FTIR, NIR and X-ray density profiling for a WPG prediction have a potential to develop robust models for the QC of SorCA-modified wood. Future research should focus on investigating wet chemistry methods to acquire more precise reference values.
Keywords: citric acid, esterified wood, quality control, sorbitol
Authors
Katarzyna Kurkowiak
University of Goettingen Wood Biology and Wood Products, Buesgenweg 4, D-37077 Goettingen, Germany
Holger Militz
Georg-August University of Goettingen Busgenweg 4, 37077 Gottingen, Germany
Aaron Kilian Mayer
Lukas Emmerich
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