表面增强拉曼光谱技术在食品安全检测中的最新研究进展

食品种类繁多, 食品中存在的污染物问题也越来越复杂。因此, 探究快速、灵敏、简单地检测食品中痕量污染物的检测技术对保障食品安全具有重要的意义, 也是食品安全中非常重要的一环。近几十年来, 表面增强拉曼散射(surface-enhanced Raman scattering, SERS)检测技术凭借其检测快速、无损、灵敏度高等优点, 已成为食品安全检测的可靠工具。目前缺乏近几年关于SERS检测技术最新研究进展的概述。因此, 本文简要综述了SERS的增强机制、增强底物及其检测技术; 总结了近3年来关于表面增强拉曼光谱在食品安全检测方面的实际应用。为了更好地将SERS检测技术应用于今后食品安全的常规检测中, 应研发更加低成本的技术, 更简单的操作方法, 开发新的SERS增强底物, 将SERS检测与其他检测方法更好的结合。

Recent research progress of surface-enhanced Raman spectroscopy in food safety detection

There are many kinds of food, and the problem of pollutants in food has been more and more complicated. Therefore, the exploration of rapid, sensitive and simple detection technology for the detection of trace pollutants in food is of great significance to ensure food safety, and is also a very important part of the food safety. In recent decades, surface-enhanced Raman scattering (SERS) detection technology has become a reliable tool for food safety detection with its advantages of fast detection, non-destructive detection and high sensitivity. At present, the overview of the latest research progress on SERS detection technology in recent years is lacking. Therefore, this paper briefly reviewed the enhancement mechanism, enhanced substrate and detection technology of SERS, summarized the application of surface-enhanced Raman spectroscopy in food safety detection in recent 3 years. In order to better apply SERS detection technology to routine detection of food safety in the future, we should develop more low-cost technology, simpler operation method, develop new SERS enhanced substrate, and better combine SERS detection with other detection methods.