表面增强拉曼光谱技术在食品安全检测中的应用

表面增强拉曼光谱是一种强有力的食品检验技术,当待测样品吸附于具有纳米量级粗糙度的金属结构表面时,样品分子的拉曼信号将得到极大的增强。该检测技术具有灵敏度高、响应迅速以及"指纹"识别等特点,在快速检测食品污染物等方面具有巨大的应用前景。该文介绍了表面增强拉曼光谱技术的发展历史、基本原理、基底分类以及联用技术,综述了该技术在重金属离子、兽药残留、农药残留、非法添加物、食源性致病微生物等方面的最新应用,最后提出了亟需解决的问题与未来的发展趋势(引用文献74篇)。

Application of Surface Enhanced Raman Spectroscopy on Food Safety Detection

Surface enhanced Raman spectroscopy(SERS)is a powerful food inspection technology.When the sample is adsorbed on the surface of metal structure with nanometer roughness,the Raman signal of the sample molecule will be greatly enhanced.The detection technology has the characteristics of high sensitivity,rapid response and"fingerprint"identification,and has great application prospects in the rapid detection of food contaminants.In this paper,the development history,basic principle,basement classification and combined technology of SERS are introduced.The latest applications of SERS in heavy metal ions,veterinary drug residues,pesticide residues,illegal additives,food-borne pathogenic microorganisms and other aspects are summarized.Furthermore,the urgent problems and development trends are put forward(74 ref.cited).