Yeh Ting-Feng, Chang Hou-Min, Kadla John F
Wood Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8005, USA.
J Agric Food Chem. 2004 Mar 24;52(6):1435-9. doi: 10.1021/jf034874r.
A rapid transmittance near-infrared (NIR) spectroscopic method has been developed to characterize the lignin content of solid wood. Using simple, multiple regression, and partial least-squares statistical analysis the lignin contents of wood wafers, taken from increment cores, and synthetic wood, prepared by blending milled wood lignin and holocellulose, were compared and quantified. Strong correlations were obtained between the predicted NIR results and those obtained from traditional chemical methods. In addition to the experimental protocol and method development, NIR results from wood samples with different particle sizes and various lignin contents are discussed.
一种快速透射近红外（NIR）光谱法已被开发出来用于表征实木中的木质素含量。使用简单、多元回归和偏最小二乘统计分析方法，对取自生长轮芯的木片以及通过混合磨木木素和全纤维素制备的合成木材中的木质素含量进行了比较和定量。预测的近红外结果与传统化学方法得到的结果之间获得了强相关性。除了实验方案和方法开发外，还讨论了不同粒径和各种木质素含量的木材样品的近红外结果。
