TeflonAF_共振拉曼光谱_液芯光纤_

TeflonAF光纤共振拉曼光谱法测量β胡罗卜素

http://www.100md.com 《分析化学》 2006年第10期

TeflonAF,共振拉曼光谱,液芯光纤,,TeflonAF，,共振拉曼光谱，,液芯光纤,1引言,2实验部分,3结果与讨论,Refer

     摘要 TeflonAF是折射率低于水折射率(n=1.33)的新材料，应用TeflonAF光纤测量了浓度低至10-10 mol/L水中β胡萝卜素的共振拉曼光谱。TeflonAF光纤能够增强拉曼光谱强度，提高测量检出限103倍。TeflonAF光纤内共振拉曼技术，是检测水中物质信息的可行的新方法。

    关键词 TeflonAF，共振拉曼光谱，液芯光纤

    Application of TeflonAF Fibre in the Measurement of Resonance Raman Spectroscopy

    Tian Yanjie, Zhang Liuyang, Zuo Jian, Li Zuowei, Gao Shuqin, Lu Guohui

    (College of physics, Jilin University, Changchun 130023)

    Abstract TeflonAF is a new material with a refractive index lower than that of the water (n=1.33). The resonance Raman spectra of aqueous βcarotene at extremely low concentration from 10-5 to 10-10mol/L were obtained by TeflonAF fibre. The Raman intensity can be enhanced, and the detection limit can be improved approximately 1000 times. The technique of resonance Raman scattering in TeflonAF fibre provides new and effective way for the detection of molecules in aqueous solution.

    Keywords TeflonAF, resonance Raman spectroscopy; liquid core optical fibre

    本文系国家自然科学基金资助项目(No.10274023)

     1 引言

    拉曼光谱是提供物质结构信息的一个强有力的工具 ......

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