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Spectroscopy and multivariate data analysis for quality control of modified wood

Summary of the Project

Infrared radiation was discovered over 200 years ago, but for many years the near infrared (NIR) region was neglected due to demanding spectra interpretation. NIR is now used as a routine method in several sectors; however, its regular implementation toward biomaterials characterization is still problematic due to their natural variability. The project MULTI-SPEC will use non-destructive spectroscopic techniques with advanced data mining for systematic and extensive characterization and evaluation of modified wood. A bottom-up approach – allowing prediction of several macro properties of wood from the information recorded at the molecular level will be implemented. The MULTI-SPEC project will compare influence of selected wood modification processes, available at industrial scale in Italy and Slovenia.

Relevance of the results expected from research project

The objective is to develop chemometric models allowing fast and non-destructive comparison of modification extent. Two types of instruments – bench laboratory FT-N IR and portable one will be used for extensive samples measurements. Comparison of equipment performance and calibration transfer protocol will be developed. Such approach is in line with an increased interest in bringing sensors out to “where the samples are,” as opposed to the bringing samples to the lab approach. It is expected that the output of the project will bring confidence in practical applications of NIR spectroscopy for in-situ and on-line applications and its future industrial implementation.