Traditions, anomalies, mistakes and recommendations in infrared spectrum measurement for wood

Tolvaj, László (2022) Traditions, anomalies, mistakes and recommendations in infrared spectrum measurement for wood. WOOD SCIENCE AND TECHNOLOGY (Early Access: OCT 2022). ISSN 0043-7719

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This paper deals with the difficulties of infrared spectroscopy measurement and suggests ways of dealing with them. Many problems appear when applying ATR (attenuated total reflection) measurement for determining the absorbance spectrum of wood, especially the highly porous nature of wood which does not fulfil the requirements of ATR measurement. Correct ATR spectrum determination requires wavelength dependence correction, but some authors miss out doing this. Normalisation of the infrared (IR) spectrum is a useful data manipulation method for correct evaluation of the spectra, but the incorrect normalisation can destroy the spectrum preventing the evaluation of the spectrum appropriately. Examples are given to teach the correct normalisation process. The difference spectrum method is an excellent tool to present the changes in IR spectra, but only a few scientists use it. Usage of wavenumbers during IR spectrum presentation is a traditional method nowadays. However, the usage of wavelength gives a more expressive spectrum presentation than wavenumber if the whole wavelength interval is presented in one diagram.

Tudományterület / tudományág

engineering and technology > material sciences and technologies
engineering and technology > wood industry


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Soproni Egyetem

Item Type: Article
SWORD Depositor: Teszt Sword
Depositing User: Csaba Horváth
Identification Number: MTMT:33225852
Date Deposited: 11 Nov 2022 08:45
Last Modified: 11 Nov 2022 08:45

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