SERS活性光纤光谱微探针研究  

Studies on the SERS-Active Optic Fiber Probe

作　　者：徐蔚青[1] 徐抒平[1] 胡冰[2] 王魁香[2] 赵冰[1] 谢玉涛[1] 樊玉国[1] 

机构地区：[1]吉林大学超分子结构与材料教育部重点实验室 [2]吉林大学物理科学学院,长春130023

出　　处：《高等学校化学学报》2004年第1期144-147,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 99750 11;2 0 3 750 14和 2 0 2 73 0 2 2 )资助

摘　　要：用真空蒸镀银岛膜和银溶胶自组装膜两种方法对光纤探针进行表面增强拉曼 ( SERS)活性修饰 ,构造了圆锥型 SERS活性光纤光谱微探针 .选取几个有代表性的分子作为检测样品 ,得到了低浓度样品的 SERS光谱 ,对样品 BVPP的检测下限达到 10 - 9m ol/L.比较两种修饰光纤探针的检测结果可知 ,银溶胶自组装膜修饰更有优势 .Surface-enhanced Raman scattering(SERS)-active optic fiber probe was fabricated with single optic fiber which modified the surface of the coned-shape fiber tip by two methods, vacuum deposited silver island and self-assemblied silver colloid. The fiber was used for both transporting the exciting laser radiation and collecting Raman scattering from the molecules absorbed onto the SERS-active substrates. Several molecules were selected to be analyzed and the molar detection limit reached 10 -9 mol/L. The SERS-active optic fiber probes were used for on line or in situ detection.

关 键 词：表面增强拉曼散射 光纤探针 自组装膜 检测 银溶胶 

分 类 号：O657.37[理学—分析化学]