石斛与桑寄生的红外光谱对比分析  

Comparative Analysis Dendrobium and Ramulus Taxilli by Fourier Transform Infrared Spectroscopy

作　　者：孙艳琳[1] 司民真[2] 时有明[1] 刘仁明[2] 张德清[2] 

机构地区：[1]曲靖师范学院物理与电子工程学院,云南省曲靖市麒麟区三江大道655011 [2]楚雄师范学院物理与电子科学系

出　　处：《光谱实验室》2013年第3期1505-1508,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：国家自然科学基金资助项目"正;负性纳米银粒子及其二维组装的表面增强拉曼光谱;荧光光谱研究"(10864001)

摘　　要：用傅里叶变换红外光谱仪测定了石斛与桑寄生的红外光谱,通过比较发现两者光谱较相似,桑寄生与石斛的相似峰个数达到91.7%。主要吸收峰的频率基本一致,反映两样品的主要化学成分相似。利用差谱技术对石斛与桑寄生的光谱进行分析,发现两者的红外光谱差异主要在1800—800cm-1范围,该范围内的差谱反映出两者的差异主要来自黄酮、蛋白质、多糖类化合物的相对含量不同。Fourier transform infrared spectroscopy was used for obtaining vibrational spectra of the Dendrobium and Ramulus Taxilli. Compared with the spectra of Dendro＆＇urn and Ramulus TaxiUi, the result showed that their spectra are very similar, the ratio of similar absorption peaks is 91. 7%. The＇wave number of mainly absorption peaks are uniform, it reflected they had similar chemical constituents mainly. Difference spectrum technology was used to analysis the spectra, the obvious differences between 1800 and 800cm-1 was presented. The difference spectrum showed that contain of flavones,protein and polysaccharide are different.

关 键 词：傅里叶变换红外光谱 石斛 桑寄生 差谱 

分 类 号：O657.33[理学—分析化学]