利用透射近红外光谱快速筛选木材化学成分变化

Rapid screening of wood chemical component variations using transmittance near-infrared spectroscopy.

作者信息

Yeh Ting-Feng, Yamada Tatsuhiko, Capanema Ewellyn, Chang Hou-Min, Chiang Vincent, Kadla John F

机构信息

Department of Wood and Paper Science, North Carolina State University, Raleigh, North Carolina 276095-8005, USA.

出版信息

J Agric Food Chem. 2005 May 4;53(9):3328-32. doi: 10.1021/jf0480647.

DOI:10.1021/jf0480647

PMID:15853367

Abstract

A rapid transmittance near-infrared (NIR) spectroscopy method was developed to predict the variation in chemical composition of solid wood. The effect of sample preparation, sample quantity (single versus stacked multiple wood wafers), and NIR acquisition time on the quantification of alpha-cellulose and lignin content was investigated. Strong correlations were obtained between laboratory wet chemistry values and the NIR-predicted values. In addition to the experimental protocol and method development, improvements in calibration error associated with utilizing stacked multiple wood wafers as opposed to single wood wafers are also discussed.

摘要

开发了一种快速透射近红外（NIR）光谱法来预测实木化学成分的变化。研究了样品制备、样品量（单个木片与堆叠多个木片）和近红外采集时间对α-纤维素和木质素含量定量的影响。实验室湿化学值与近红外预测值之间具有很强的相关性。除了实验方案和方法开发外，还讨论了与使用堆叠多个木片而非单个木片相关的校准误差的改进。