几种醇类物的荧光效率及荧光寿命研究  

Fluorescence Efficiency and Fluorescence Lifetime of Several Alcohol Materials

作　　者：徐辉[1] 朱拓[2] 虞锐鹏 顾恩东[1] 史爱敏[1] 

机构地区：[1]江南大学通信与控制工程学院,江苏无锡214122 [2]江南大学理学院,江苏无锡214122 [3]江南大学分析测试中心,江苏无锡214122

出　　处：《食品与生物技术学报》2007年第4期56-61,共6页Journal of Food Science and Biotechnology

基　　金：国家自然科学基金项目(20276027);江苏省自然科学基金项目(BK2005010).

摘　　要：以硫酸奎宁稀溶液为参比,计算了7种醇类物的荧光量子效率。结果发现这几种醇类物的荧光量子效率较低,属于弱荧光物质;作者对不同体积比的甲醇-乙醇混合溶液的荧光量子效率进行了计算,发现存在着最佳体积比使荧光量子效率达到最大;同时,通过Forster公式对这7种醇类物的荧光寿命进行了计算,其数值均处在荧光寿命允许的范围内,进一步证明了紫外激励下这几种醇类物质发射的光是荧光,为醇类物质的进一步深入研究提供了依据。In this study, with quinine bisulphate as a reference, fluorescence efficiency for seven alcohol materials were determined. It is found that all of them are weak fluorescence materials. In order to get the best fluorescence efficiency from the mixture of methanol and ethanol materials, the optimum volume ratio was determined. Furthermore, the fluorescence lifetime values for the seven materials were calculated through Forster equation. All of them are located at the sphere of the fluorescence lifetime. This results further proved that the light emitted under UV-light should be the very fluorescence light.

关 键 词：光谱学 荧光光谱 荧光效率 荧光寿命 参比法 硫酸奎宁 

分 类 号：O621.2[理学—有机化学]