基于金属有机框架的农产品中农兽药残吸附萃取技术研究进展

Research Progress of Adsorption Extraction of Pesticide and Veterinary Drug Residues in Agricultural Products Based on Metal-organic Frameworks

农产品中农兽药物的残留是食品安全领域的主要问题之一,有必要对这些药物残留进行含量检测并严格限量。目前的吸附萃取材料如沸石、多壁碳纳米管等存在吸附量少、孔隙易堵塞的问题。金属有机框架(Metalorganic Frameworks,MOFs)因具有可调节孔隙、分级结构、巨大的孔体积和表面积、优异的吸附性能和可回收等特点而被逐渐应用于吸附萃取农产品中的农兽药残。本文综述了MOFs作为吸附剂吸附萃取农产品中农兽药残的应用现状,并分别从农、兽药种类的角度出发就MOFs的吸附应用进行了系统阐述,综合分析了MOFs的优异吸附性能。文章为MOFs吸附萃取农兽药残技术的进一步发展提供参考,为食品安全检测提供了技术借鉴。

Pesticide and veterinary drug residues in agricultural products are one of the main problems in the field of food safety.It is necessary to test the residual content of these drugs and set strict limits.At present,adsorption extraction materials such as zeolite and multi-walled carbon nanotubes have the problems of low adsorption capacity and easy clogging of pores.Metal-organic frameworks(MOFs)have been gradually applied in the adsorption extraction of pesticide and veterinary drug residues in agricultural products due to their characteristics of adjustable pores,hierarchical structure,large pore volume and surface area,excellent adsorption performance and recyclability.In this paper,the application status of MOFs as adsorbent for extraction of pesticide and veterinary drug residues in agricultural products is reviewed,and the adsorption application of MOFs is systematically described from the perspective of pesticide and veterinary drug types,and the excellent adsorption performance of MOFs is comprehensively analyzed.This paper gives a reference for the further development of MOFs adsorption extraction technology of pesticide and veterinary drug residues,provides a technical reference for food safety detection.