| 小波变换-主成分回归法在四组分食用色素同时测定中的应用研究 |
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| 引用本文： | 司圣柱,王丽平,董雄辎.小波变换-主成分回归法在四组分食用色素同时测定中的应用研究[J].安徽教育学院学报,2009,27(6):69-72. |
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| 作者姓名： | 司圣柱 王丽平 董雄辎 |
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| 作者单位： | 合肥师范学院化学化工系,安徽,合肥,230061 |
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| 基金项目： | 安徽省高校青年教师资助计划项目 |
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| 摘 要： | 将小波变换（WT）与主成分回归（PCR）法相结合，对苋菜红、胭脂红、、诱惑红、赤藓红四种食用色素进行同时测定。选用Bior1．1小波对四组分混合物的原始吸光度数据进行一次分解，以低频系数作校正集并用交叉验证法选择主成分数进行PCR建模，获得了令人满意的预测结果。
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| 关 键 词： | 小波变换 主成分回归 食用色素 分光光度 同时测定 |
Study on Simultaneous Determination of Pigments in Tetrad Mixtures by Spectrophotometry with Wavelet Transform-Principal Component Regression Method |
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| SI Sheng-zhu,WANG Li-ping,DONG Xiong-zi.Study on Simultaneous Determination of Pigments in Tetrad Mixtures by Spectrophotometry with Wavelet Transform-Principal Component Regression Method[J].Journal of Anhui Institute of Education,2009,27(6):69-72. |
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| Authors: | SI Sheng-zhu WANG Li-ping DONG Xiong-zi |
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| Institution: | SI Sheng-zhu,WANG Li-ping,DONG Xiong-zi(Department of Chemistry , Chemical Engineering,Hefei Normal University,Hefei 230061,China) |
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| Abstract: | A wavelet transform(WT) combined with principal component regression(PCR)method is established for simultaneous determination of tetrad mixtures of carmine,amaranth,allura red and erythrosine A PCR multivariate calibration model on the first approach coefficients of the original visible absorption spectra extracted by Bior1.1 wavelet transform,using cross-validation method leaving one out of calibration sample at a time to select the optimal number of component,and produces a satisfactory result with good p... |
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| Keywords: | wavelet transform principal component regression pigment spectrophotometry simultaneous determination |
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