酸性金黄偶氮染料在银镜上的表面增强拉曼光谱研究  

Study on Surface-Enhanced Raman Scattering Spectra of Acid Golden Yellow G

作　　者：王铮[1] 李志美[1] 李风亭[1] 

机构地区：[1]同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室

出　　处：《光谱实验室》2005年第3期638-640,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：以银氨溶液和葡萄糖制备的银镜为吸附基底,获得了酸性金黄G偶氮染料在银镜上的表面增强拉曼光谱,并对其拉曼峰的归属及吸附机理进行了探讨。酸性金黄G靠静电引力和范德华力以带孤对电子的N原子垂直吸附在银镜表面,SERS强度随染料浓度的降低而降低,检出限为10-10mol/L。The SERS spectra of acid golden yellow G on silver mirrors prepared with ammoniacal silver solution and glucose were studied. The acid golden yellow G is absorbed perpendicularly on the surface of silver mirror through N atom with lone pair electrons by van der force and electrostatic force. The SERS intensity decreased with the decrease of concentration. The lowest detection limit is 10-10mol/L.

关 键 词：表面增强拉曼光谱 银镜 酸性金黄G 

分 类 号：O657.37[理学—分析化学]