亚油酸的拉曼光谱分析  

Analysis on Raman Spectrum of Linoleic Acid

作　　者：沈金虎[1] 王卫东[1] 耿梅艳[1] 徐志坤[1] 苏张磊[1] 秦广雍[1] 

机构地区：[1]河南省离子束生物工程重点实验室,郑州大学物理工程学院,河南郑州450052

出　　处：《安徽农业科学》2009年第15期6827-6828,6846,共3页Journal of Anhui Agricultural Sciences

基　　金：农业部农业公益性行业科研专项经费项目"核技术农业应用"资助(200803034);国家自然科学基金项目资助课题(10505018)

摘　　要：[目的]分析亚油酸的拉曼光谱效应。[方法]分别采用可见(514 nm)和紫外(325 nm)激光对亚油酸进行拉曼光谱测定,并对谱线进行初步的指认和分析,得到亚油酸拉曼光谱主要谱峰位置和强度。[结果]结果表明,2种波长激光得到的亚油酸拉曼光谱基本相同,相对而言,514 nm激光激发得到的拉曼光谱较好。采用325 nm波长紫外激光对样品辐照表明,短时间的325 nm紫外光辐照对亚油酸样品没有影响。[结论]该研究结果为采用拉曼光谱分析亚油酸氧化的机理提供试验依据。[ Objective] The purpose of this research was to analyze on Raman spectrum of linoleic acid. [ Method] Linoleic acid was studied by Raman spectrograph under UV and visible laser . The basic characteristic spectrunet were identified and analyzed. The intensity and main peak position of Raman spectrums of linoleic acid were got. [ Result]The results showed that the spectrum under different laser had no difference. The spectrum under visi- ble laser was better. The study of the UV irradiation on linoleic acid found that short time irradiation had no change on linoleic spectrum. [ Conclusion] This study result will give a good support for studying the mechanism of lipid peroxidation by Raman spectrograph.

关 键 词：拉曼光谱 特征振动频率 官能团 亚油酸 

分 类 号：O657.31[理学—分析化学]