| 吸光光度多组分同时测定方法研究——MR和PLS法测定钴、镍、铜三组分混合体系 |
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| 引用本文： | 陆晓华,朱丽华.吸光光度多组分同时测定方法研究——MR和PLS法测定钴、镍、铜三组分混合体系[J].高等学校化学学报,1991,12(2):177. |
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| 作者姓名： | 陆晓华 朱丽华 |
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| 作者单位： | 华中理工大学化学系, 430074 |
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| 摘 要： | 用偏最小二乘法(PLS)和多元线性回归法(MR)分别对钴、镍、铜三组分混合体系进行同时测定,证明PLS法对光谱重叠严重的体系较MR法有更好的预报准确性.着重讨论了校正集样品数n、波长数,和特征变量数d等测定参数对预报结果的影响.
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| 关 键 词： | 偏最小二乘法 多元线性回归 钴、镍、铜同时测定 |
| 收稿时间： | 1989-09-14 |
Studies on the Simultaneous Determination of Multicomponent System by Absorption Spectrometry--Determination of Cobalt,Nickel and Copper in TricomponentMixing System by MR and PLS Methods |
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| Lu Xiao-hua,Zhu Li-hua.Studies on the Simultaneous Determination of Multicomponent System by Absorption Spectrometry--Determination of Cobalt,Nickel and Copper in TricomponentMixing System by MR and PLS Methods[J].Chemical Research In Chinese Universities,1991,12(2):177. |
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| Authors: | Lu Xiao-hua Zhu Li-hua |
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| Institution: | Department of Chemistry, Huazhong University of Science and Technology, Wuhan, 430074 |
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| Abstract: | The partial least-square (PLS) and multivariable linear regression methods are used in the simultaneous determination of Co, Ni and Cu mixtures. The effects of parameters, the number of calibration samples n, the number of wavelengths p and the latent variables d, on the prediction of results are discussed. The results show that the accuracy of PLS analysis is superior to that of MR method for determining a multicomponent system in the case of the spectra with a low selectivity. |
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| Keywords: | Partial least-square method Multivariable linear regression method Simultaneous determination of Co Ni and Cu |
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