表面等离子体波共振与常规检测技术的联用

表面等离子体波共振(SPR)是被入射电磁波所激发、存在于金属和电介质界面上电荷密度振动的谐振波.SPR是一种消逝场光学成功应用的典范,它具有体积小、分辨率高、无需标记、抗电磁干扰能力强等特点.本文介绍了SPR与电化学方法(循环伏安法、溶出伏安法)、光学方法(荧光光谱、红外光谱)、质谱和石英晶体微天平等其它常规检测技术联用的研究进展,与其它常规方法联用能进一步提高分析能力,可弥补彼此的不足.本文还特别详细说明了部分电化学方法、干涉测量法与表面等离子体波共振联用的优势及不足.

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Surface plasmon resonance(SPR) is used to describe the excitation and propagation of electromagnetic waves along the metal-dielectric interface.SPR is one of the successful applications for evanescent wave,which has the features of small volume,high resolution,label-free analysis and the strong capability of anti-electromagnetism etc.SPR combined with other conventional techniques(electrochemical techniques such as cyclic voltammetry and stripping voltammetry;optical techniques including fluorescence spectrometry and infrared spectrometry;mass spectrometry;quartz crystal microbalance etc.) are discussed,which can further improve the ability of analysis and is complement for each other.In particular,the advantage and disadvantage of electrochemical surface plasmon resonance and interferometry-surface plasmon resonance are reviewed in details.