| 小波包变换潜变量回归同时测定三组分混合物 |
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| 引用本文： | 高玲,任守信.小波包变换潜变量回归同时测定三组分混合物[J].分析试验室,2004,23(7):57-60. |
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| 作者姓名： | 高玲 任守信 |
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| 作者单位： | 内蒙古大学化学化工学院,呼和浩特,010021;内蒙古大学化学化工学院,呼和浩特,010021 |
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| 基金项目： | 国家自然科学基金 (2 996 5 0 0 1)，内蒙古自然科学基金 (2 0 0 2 2 0 80 2 0 115 ) |
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| 摘 要： | 采用小波包变换潜变量回归 (WPLVR)方法 ,同时测定水杨酸甲酯(MSA)、邻苯二甲酸二丁酯 (DBP)和邻苯二甲酸氢钾 (PHP)。该法结合小波包变换和潜变量回归改进除噪质量。通过最佳化 ,选择了小波函数及小波包分解水平 (L)。编制了两个程序 (PWPLVR)和 (PFTLVR)进行WPLVR和付立叶变换潜变量回归 (FTLVR)法计算。实验结果表明WPLVR法是成功的且优于FTLVR法。
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| 关 键 词： | 小波包变换 潜变量回归 三组分同时测定 |
| 文章编号： | 1000-0720(2004)07-0057-04 |
Simultaneous determination of the mixture of three components by spectrophotometry with a wavelet packet transform latent variable regression |
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| GAO Ling and REN Shou-xin.Simultaneous determination of the mixture of three components by spectrophotometry with a wavelet packet transform latent variable regression[J].Chinese Journal of Analysis Laboratory,2004,23(7):57-60. |
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| Authors: | GAO Ling and REN Shou-xin |
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| Abstract: | A wavelet packet transform latent variable regression (WPLVR) method was developed to perform simultaneous determination of methyl salicylate (MSA), dibutyl phthalate (DBP) and potassium hydrogen phthalate (PHP) in their mixture. The quality of the noise removal was improved by combining wavelet packet transform with latent variable regression (VLR). Through optimization, wavelet function and wavelet packet decomposition levels (L) were selected. Two-programs, PWPLVR and PFTLVR, were designed to perform WPLVR and Fourier transform latent variable regression (FTLVR) calculations. Experimental results showed the WPLVR method was better than FTLVR. |
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| Keywords: | Wavelet packet transform Latent variable regression Simultaneous three-component analysis |
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