Selective assessment of duplex heat-treated wood by near-infrared spectroscopy with principal component and kinetic analyses

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 3 Band assignments in NIR spectra of wood

	Wave number (cm⁻¹)	Assignment	Component	Wave number from reference (cm⁻¹)
1	6148	1st OT O–H str	Cell	6126
2	5983–5967	1st OT C–H str	Hemi	6003
		1st OT C_arm–H str	Extr	5995
			Lig	5980
				5974
				5963
				5978
3	5867	1st OT C–H str	–	5900
			Lig	5890
			Cell	5872
			Hemi	5865
4	5809	1st OT C–H str	Lig./Hemi./Cell	5814, 5816
			Hemi	5800
			Lig	5795
5	5610	1st OT C–H₂ str	Cell	5618

OT overtone, Lig. lignin, Hemi. hemicellulose, Cell. cellulose, Extr. extractives