| 近红外光谱法快速测定甘蔗渣水分和糖分含量 |
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| 引用本文： | 张翠,柴欣生. 近红外光谱法快速测定甘蔗渣水分和糖分含量[J]. 中华纸业, 2011, 32(22): 55-58 |
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| 作者姓名： | 张翠 柴欣生 |
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| 作者单位： | 1. 广东省质量监督制浆造纸产品检验站,广东江门529000;华南理工大学制浆造纸工程国家重点实验室,广州510640
2. 华南理工大学制浆造纸工程国家重点实验室,广州,510640 |
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| 摘 要： | 探讨了近红外光谱法快速测定甘蔗渣水分和糖分含量的可行性。基于实验室自制的20个水分和糖分不同含量的甘蔗渣样品，用近红外光谱仪积分球旋转方式在12500～4000cm^-1范围内采集相应样品的光谱，利用化学计量学软件建立样品水分和糖分含量与光谱数据之间的相关性模型。结果表明，对原始光谱进行多元散射校正的预处理后，选择9295．8～6098．2cm^-1和5450．2-4597．8cm^-1波数区间，用偏最小二乘法（PLS）和完全交互验证方式建立的校正模型的相关系数R^2分别为0．9886和0．9793，交互验证均方差RMSECV分别为2．18和0．463。该方法操作简单、准确性好，适用于生产过程中对甘蔗渣水分和糖分含量的快速测定。
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| 关 键 词： | 近红外 偏最小二乘法 水分 糖分 |
Rapid determination of moisture and sugar content of bagasse by NIR spectroscopy |
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| ZHANG Cui,CHAI Xin-sheng. Rapid determination of moisture and sugar content of bagasse by NIR spectroscopy[J]. China Pulp & Paper Industry, 2011, 32(22): 55-58 |
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| Authors: | ZHANG Cui CHAI Xin-sheng |
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| Affiliation: | 1.Pulp and Paper Quality Supervision Inspection Center, Jiangmen 529000, Guangdong, China; 2.State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China) |
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| Abstract: | This paper reports on a rapid method to determinate the moisture and sugar content of bagasse by NIR spectroscopy. This method, simple and accurate, can achieve simultaneous determination of moisture and sugar content, the prediction models were established respectively, i.e. y =0.9891x +0.3925(R2 = 0.9886), and y =0.9689x +0.1197(R2 = 0.9793). It is suitable to be applied to production process for rapid determination of the moisture and sugar content of bagasse. |
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| Keywords: | near-infrared partial least squares moisture content sugar content |
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