| 近红外光谱法预测粗皮桉木材的化学成分质量分数 |
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| 引用本文： | 霍小梅,赵荣军,姚春丽,任海青. 近红外光谱法预测粗皮桉木材的化学成分质量分数[J]. 东北林业大学学报, 2010, 38(8) |
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| 作者姓名： | 霍小梅 赵荣军 姚春丽 任海青 |
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| 作者单位： | 中国林业科学研究院,北京,100091;北京林业大学;中国林业科学研究院 |
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| 基金项目： | 国家林业局"948"引进项目 |
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| 摘 要： | 采用近红外光谱法对粗皮桉木材中化学成分质量分数进行快速预测。用常规湿化学方法测定了粗皮桉木材样品的化学成分质量分数,结合近红外光谱仪采集相应的光谱,对原始光谱进行二阶导数预处理后,用偏最小二乘法建立相应的模型并对其进行外部验证。结果表明:粗皮桉木材综纤维素校正模型的相关系数为0.96,预测模型的相关系数为0.92,RPD为2.30。木质素校正模型的相关系数为0.91,预测模型相关系数为0.88,RPD为2.11。利用近红外光谱分析方法可以快速预测粗皮桉木材中综纤维素和木质素质量分数。
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| 关 键 词： | 粗皮桉 木材 近红外光谱 综纤维素 木质素 |
Prediction of Chemical Compositions of Eucalyptus pellita by Near Infrared Spectroscopy |
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| Huo Xiaomei,Zhao Rongjun,Yao Chunli,Ren Haiqing. Prediction of Chemical Compositions of Eucalyptus pellita by Near Infrared Spectroscopy[J]. Journal of Northeast Forestry University, 2010, 38(8) |
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| Authors: | Huo Xiaomei Zhao Rongjun Yao Chunli Ren Haiqing |
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| Affiliation: | Huo Xiaomei,Zhao Rongjun(Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,P.R.China),Yao Chunli(Beijing Forestry University),Ren Haiqing(Research Institute of Wood Industry,Chinese Academy of Forestry) |
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| Abstract: | A rapid near infrared(NIR)spectroscopy method was used to predict chemical compositions of Eucalyptus pellita.The chemical compositions of wood samples were analysed using conventional wet chemical methods,and the spectra were collected by NIR.After the second derivative pretreatment of raw spectra,the models were developed using partial least-squares statistical analysis and external validation.Results showed that the correlation coefficients (r) of calibration and validation for holocellulose were 0.96 an... |
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| Keywords: | Eucalyptus pellita wood Near infrared(NIR)spectroscopy Holocellulose Lignin |
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