固体进样元素分析技术在农业领域的应用

Applications of Solid Sampling Analytical Technologies of Elements in Agricultural Field

重金属是农产品、农田土壤、肥料、饲料等农业样品中的重要污染物,传统的实验室分析方法需繁琐的前处理,耗时费力,无法满足重金属的快速检测需求。固体进样元素分析技术具有简化样品前处理、便捷、绿色、高效等优势,在农业领域中元素的快速检测分析中具有良好的应用前景。通过对固体进样元素分析技术,包括样品导入技术和电热蒸发、电感加热、激光烧蚀、X射线荧光光谱、激光诱导击穿光谱等固体进样分析系统进行综述,并对这些技术在农业领域中的应用做了进一步的梳理。固体进样分析技术已在农业样品中元素的快速检测、现场监测、风险评估等工作中发挥着举足轻重的作用,相信随着仪器研发、材料科学、机器学习等新兴技术的快速发展,其结构小巧、使用简单、分析迅速等优势将会充分发挥、为农业领域中质量安全监管提供一种更为有效、可靠的快速检测手段。

Heavy metals are important pollutants in agro-products,farmland soil,fertilizers,feeds and other samples in agricultural field.Conventional laboratory analytical methods cannot meet the major demand for rapid detection of elements,due to complex sample digestion,long time-consuming and high-skilled requirement.The solid sampling analytical technologies have some advantages,such as without sample pretreatment,convenient,green,safety and high sampling efficiency,and have good application prospects in the rapid elemental analysis for the agricultural field.In this paper,the solid sampling elemental analysis technologies and applications in agricultural field were reviewed,including sample introduction,electrothermal vaporization,induction heating,laser ablation,X-ray fluorescence and laser induced breakdown spectrometry,etc.The solid sampling analysis has played a significant role in the rapid detection,on-site monitoring and risk assessment in agricultural field,etc.And we believe that with rapid growth of instruments development,materials science,machine learning and other emerging technologies,the advantages of solid sampling analysis,such as compact,simple,rapid and on-site analysis could be sufficiently realized,and it will be widely used in quality and safety supervision in the agricultural field.