Estimation of Crystallinity of Poplar Cellulose Using Near Infrared Spectroscopy
Many studies have successfully applied near infrared (NIR) spectroscopy to estimate important wood properties. In this paper, the use of NIR (350–2500 nm) spectroscopy to predict the cellulose crystallinity of Poplar (Populus nigra var.) was investigated. The calibration and test models were constructed using partial least squares regression (PLS). The correlations were significant both the calibration and the test samples using six factors, and the correlation coefficients (R2) were 0.9367, 0.9472 respectively. The results suggest that NIR spectroscope may provide a useful tool for rapid and accurate prediction of the cellulose crystallinity of Poplar.
Z. B. Liu et al., "Estimation of Crystallinity of Poplar Cellulose Using Near Infrared Spectroscopy", Advanced Materials Research, Vols. 622-623, pp. 1532-1535, 2013