| 阿司匹林合成过程的在线拉曼光谱研究 |
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| 引用本文： | 李卫华,吕国伟,黄兰,高红,杜为民.阿司匹林合成过程的在线拉曼光谱研究[J].物理化学学报,2003,19(2):105-108. |
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| 作者姓名： | 李卫华 吕国伟 黄兰 高红 杜为民 |
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| 作者单位： | School of Physics, College of Chemistry and Molecular Engineering, Continue Education School, Peking University, Beijing 100871 |
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| 基金项目： | 中国科学技术部科学仪器设备改造升级技术开发项目，北京市科技项目资助~ |
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| 摘 要： | 利用在线拉曼光谱的方法,跟踪阿司匹林合成反应过程的实验.直接观测到反应过程中体系的拉曼光谱随时间的变化,用小波变换的方法去除光谱的本底之后, 又利用多波长线性回归的方法对实验数据进行实时的处理,得到了实验中各组分的相对浓度随时间的变化.
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| 关 键 词： | 拉曼光谱 多波长线性回归 小波变换 阿司匹林 在线测量 |
| 收稿时间： | 2002-04-05 |
| 修稿时间： | 2002年4月5日 |
Aspirin Synthesis On-line Measurement by Raman Spectroscopy |
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| Li Wei-Hua,Lü Guo-Wei,Huang Lan,Gao Hong,Du Wei-Min.Aspirin Synthesis On-line Measurement by Raman Spectroscopy[J].Acta Physico-Chimica Sinica,2003,19(2):105-108. |
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| Authors: | Li Wei-Hua Lü Guo-Wei Huang Lan Gao Hong Du Wei-Min |
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| Institution: | School of Physics, College of Chemistry and Molecular Engineering, Continue Education School, Peking University, Beijing 100871 |
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| Abstract: | In this paper,the process of aspirin synthesis was studied by using on line Raman spectroscopy.Wavelet analysis has been applied to remove the fluorescent background from the Raman spectra,and the variation of components concentration was determined with Multi wavelength Linear Regression Method.The on line Raman spectroscopy provided direct information about the variation of components concentration on the reaction time in the synthesis process. |
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| Keywords: | Raman spectroscopy Multi wavelength Linear Regression(MLR) method Wavelet analysis Aspirin On line measurement |
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