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山药近红外拉曼光谱分析
引用本文:林文硕,陈荣,李永增,冯尚源,黄祖芳,谢秉贤.山药近红外拉曼光谱分析[J].光谱学与光谱分析,2008,28(5):1095-1097.
作者姓名:林文硕  陈荣  李永增  冯尚源  黄祖芳  谢秉贤
作者单位:医学光电科学与技术教育部重点实验室,福建师范大学,福建,福州,350007
基金项目:国家自然科学基金 , 国家重点实验室基金
摘    要:采用785 nm半导体激光光源,全息光栅和近红外增强CCD探测器等光电器件,构建了一套近红外拉曼光谱探测系统,测试获得了山药的拉曼光谱及拉曼一阶导数谱。山药拉曼光谱谱中出现了477,863,936 cm-1等较强的特征峰,主要归属为蛋白质、氨基酸、淀粉、多糖等物质,与已知山药生化成分基本相符。在山药拉曼一阶导数谱中,467,484,870,943 cm-1处出现明显特征峰。对比山药拉曼光谱,在600~800cm-1,1 000~1 400 cm-1区域内,山药拉曼一阶导数谱变化较为明显,可以更为清晰地表现山药拉曼光谱,能作为山药拉曼光谱分析的补充方法。

关 键 词:拉曼光谱  山药
文章编号:1000-0593(2008)05-1095-03
修稿时间:2007年5月9日

Near Infrared Raman Spectra Analysis of Rhizoma Dioscoreae
LIN Wen-shuo,CHEN Rong,LI Yong-zeng,FENG Shang-yuan,HUANG Zu-fang,XIE Bing-xian.Near Infrared Raman Spectra Analysis of Rhizoma Dioscoreae[J].Spectroscopy and Spectral Analysis,2008,28(5):1095-1097.
Authors:LIN Wen-shuo  CHEN Rong  LI Yong-zeng  FENG Shang-yuan  HUANG Zu-fang  XIE Bing-xian
Institution:Key Laboratory of Optoelectronic Science and Technology for Medicine, Ministry of Education, Fujian Normal University, Fuzhou 350007, China. lws43@163.com
Abstract:A novel and compact near-infrared(NIR) Raman system was developed using 785 nm diode laser,volume-phase technology holographic system,and NIR intensified charge-coupled device(CCD).The Raman spectra and first derivative spectra of rhizoma dioscoreae were obtained.The Raman spectra of rhizoma dioscoreae showed three strong characteristic peaks at 477,863 and 936 cm-1,respectively.The major ingredients are protein,amino acid,starch,polysaccharides and so on,matching the known basic biochemical composition of rhizoma dioscoreae.In the first derivative spectra of rhizoma dioscoreae,the distinguishing characteristic peaks appeared at 467,484,870 and 943 cm-1.Contrasted with rhizoma dioscoreae Raman spectra in the ranges of 600 to 800 cm-1 and 1 000 to 1 400 cm-1,the changes in rhizoma dioscoreae Raman first derivative spectra are represented more clearly than the rhizoma dioscoreae Raman spectra. So the rhizoma dioscoreae Raman first derivative spectra can be an accurate supplementary analysis method to the rhizoma dioscoreae Raman spectra.
Keywords:Raman spectra  Rhizoma dioscoreae
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