| 引用本文:杜 敏1 吴志生1 巩 颖2 史新元1 华国栋2 乔延江1.基于近红外光谱技术的道地山药快速无损分析[J].世界中医药,2013,8(11):. |
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| 基于近红外光谱技术的道地山药快速无损分析 |
| Rapid Non-destructive Analysis of Genuine Chinese Yam by Near Infrared Diffuse Reflectance Spectroscopy |
| 投稿时间：2013-10-30 |
| DOI：10.3969/j.issn.1673-7202.2013.11.004 |
| 中文关键词: 道地山药 近红外漫反射光谱 判别分析法 鉴别 |
| English Keywords:Key Words Genuine Chinese Yam Near infrared diffuse reflectance spectroscopy Discriminant analysis Identification |
| 基金项目:国家自然科学基金项目（编号：81303218）；省部级中药基础与新药研究重点实验室开放课题 |
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| 中文摘要: |
| 目的：采用近红外漫反射光谱技术，建立对道地山药的快速无损鉴别方法。方法：收集三个产地（河南、河北、广东）的山药饮片共90份，采集其近红外漫反射光谱。采用判别分析法建立定性鉴别模型，并考察不同数据预处理方法对模型预测结果的影响。结果：道地山药饮片与其他产地的山药饮片在原始光谱与主成分得分的空间分布中均表现出较大的差异性。所建定性判别模型中，经多元散射校正结合二阶导数及SG平滑处理的模型表现出最佳预测结果，其对校正集与验证集的判正率均为100%。结论：近红外漫反射光谱技术在道地药材的质量分析中具有可行性，可实现道地山药饮片的快速无损鉴别。 |
| English Summary: |
| Abstract To investigate the feasibility of NIR spectroscopy in the discrimination of genuine Chinese Yam，90 samples from three origins were collected and their near infrared diffuse reflectance spectra were acquired.Discriminant analysis was employed to create qualitative model，and several data pre-processing methods were explored.The results showed that genuine Chinese Yam was greatly different from other samples according to raw spectra and score plot of PCA.The discriminant analysis model with raw spectra after pretreatment of multiplicative scatter correction，2nd derivative and Savitzky-Golay filter smoothing，showed the best predicative ability( the percentage of correctly identified varieties were both 100% for the calibration sample set and validation sample set ).This research indicated that NIR diffuse reflection spectroscopy could be used for the rapid analysis of genuine Chinese Yam . |
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