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黄酒总糖含量的中红外光谱定量检

, PP. 143-145

Keywords: 总糖,黄酒,中红外光谱

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Abstract:

利用中红外光谱技术对黄酒中的总糖含量进行了快速检测。实验以3个厂家的共30个样品为研究对象,在1000~1500cm-1和2500~3000cm-1波段范围内建立了多元线性回归、主成分回归以及偏最小二乘回归模型,并比较了微分的光谱预处理方法对模型精度的影响。二阶微分光谱建立的偏最小二乘模型的精度最佳,交互验证的相关系数为0.984,RMSECV为0.765g/L,RPD为5.75,表明中红外光谱技术可以用于黄酒中总糖含量的快速检测。

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