激光诱导击穿光谱技术及其在食品分析中的应用研究进展

激光诱导击穿光谱技术是一种对元素进行定性、定量分析的光谱学技术，通过对样品进行表面激光灼烧获得样品组成元素的等离子体光谱，从而实现对样品的分析。激光诱导击穿光谱技术作为一种高效的免试剂在线检测技术，具有环保、微创、低成本、易操作等优势，随着该技术日趋成熟及相关科学理论的发展，其成为了食品行业新兴的分析检测工具。本文简述了激光诱导击穿光谱的基本原理，综述了其在食品中的应用和最新进展，评估了其在食品分析检测方面的潜力。虽然激光诱导击穿光谱显示出许多优势，但由于其在食品中的应用正处于起步阶段，在检测灵敏度、消除基质效应及便携应用等方面依然存在挑战。

A Review of Laser-Induced Breakdown Spectroscopy and Its Application in Food Analysis

Laser-induced breakdown spectroscopy (LIBS) is a spectroscopic technique for the qualitative and quantitative analysis of elements where the surface of samples is burned by laser to obtain the plasma spectra of the target elements in them. As an efficient reagent-free online testing technology, LIBS has the advantages of environmental friendliness, minimal invasion, low cost and ease of operation. With the gradual maturity of this technology and the development of relevant scientific theories, it has become an emerging analytical tool in the area of food research. The basic principle of LIBS is briefly described in this article, and the latest progress in its application in food research is reviewed. Finally, the potential of LIBS in food analysis is also evaluated. Despite its many advantages, the application of LIBS in food analysis is still in its infancy, and there are still challenges in detection sensitivity, matrix effect elimination and portability.