| 植物纤维原料的近红外光谱吸收机理的研究 |
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| 引用本文： | 吴新生,谢益民.植物纤维原料的近红外光谱吸收机理的研究[J].光谱实验室,2010,27(5):1685-1690. |
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| 作者姓名： | 吴新生 谢益民 |
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| 作者单位： | 1. 广东科学技术职业学院广州学院,广州市天河区科华街351号,510640
2. 湖北工业大学化学与环境工程学院,武汉市,430068;山东轻工业学院制浆造纸科学与技术教育部重点实验室,济南市,250353 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基资助项目 |
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| 摘 要： | 研究发现,植物纤维原料中的木素、纤维素、半纤维素和提取物等主要成分的近红外光谱吸收、同一成分中的不同基团的近红外光谱吸收、不同结构的基团的近红外光谱吸收相互重叠,导致植物纤维原料的近红外吸收光谱十分复杂。然而研究结果表明木素与碳水化合物在C—H键的第一倍频区(1600—1800nm)有明显的吸收差别,木素的苯环在1668nm处有吸收峰,而碳水化合物由于没有苯环C—H键而没有发现有此吸收峰。这反映了植物纤维原料中木素组分在近红外光谱区的信息具有特征吸收,为植物纤维原料的性质分析提供了理论基础。
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| 关 键 词： | 近红外光谱 植物纤维原料 吸收 木素 |
Study on Mechanism of Near-Infrared Absorption of Plant Fibrous Materials |
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| WU Xin-Sheng,XIE Yi-Min.Study on Mechanism of Near-Infrared Absorption of Plant Fibrous Materials[J].Chinese Journal of Spectroscopy Laboratory,2010,27(5):1685-1690. |
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| Authors: | WU Xin-Sheng XIE Yi-Min |
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| Institution: | WU Xin-Sheng XIE Yi-Mina,b(Guangzhou College,Guangdong Institute of Technology,Guangzhou 510640,P.R.China)a(School of Chemical and Environmental Engineering,Hubei University of Technology,Wuhan 430068,P.R.China)b(Key Lab of Paper Science and Technology of Ministry of Education,Shandong Institute of Light Industry,Jinan 250353,P.R.China) |
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| Abstract: | It was found that NIR spectra of plant fibrous materials that were very complex because of the overlap of the absorption from the materials＇ heterogeneities,different groups of the same component and different structures of the same group.Moreover,there was obvious difference in the absorption of C—H bonds between lignin and carbohydrates in the wave range of 1600—1800nm.There was an absorption band from phenyl group of lignin at 1668nm,which was absent in that of carbohydrates because of no phenyl group.These imply that near-infrared spectra contain characteristic information about lignin of plant fibrous materials and that is the theoretical basis of qualitatively and quantitatively analyzing the plant fibrous materials. |
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| Keywords: | Near-Infrared Spectroscopy Plant Fibrous Material Absorption Lignin |
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