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作 者:姜刘杉 周庆祥[1] JIANG Liushan;ZHOU Qingxiang(College of Chemical Engineering and Environment,China University of Petroleum-Beijing,Beijing 102249,China)
机构地区:[1]中国石油大学(北京)化学工程与环境学院,北京102249
出 处:《色谱》2025年第2期107-119,共13页Chinese Journal of Chromatography
基 金:国家自然科学基金(22176219).
摘 要:痕量污染物因其在环境中的微量存在和基质的复杂性,难以直接通过仪器进行检测,对人类的健康构成潜在威胁。磁性固相萃取(MSPE)技术因具有操作简单、成本低廉、富集效率高等优势,在样品前处理领域一直备受关注。磁性固相萃取的研究聚焦于磁性材料的功能化,近年来研究者深入探索了磁性材料的功能化途径,将多种新兴材料引入磁性材料的修饰,有效拓展了磁性功能化材料的性能和应用领域。其中,磁性共价有机骨架材料(MCOFs)是一种具有代表性的材料,不仅具有比表面积大、稳定性高的特点,还兼具磁性材料的快速分离特性;可通过氢键作用、疏水作用、π-π共轭作用实现对目标物的快速、高效富集。本文重点综述了MCOFs的种类、合成方法及其在富集检测农药、内分泌干扰物(EDCs)及药物和个人护理产品(PPCPs)中的应用,并对该领域未来研究的发展方向进行了展望。Trace contaminants are toxic and their widespread presence in the environment potentially threatens human health.The levels of these pollutants are often difficult to determine directly using instruments owing to the complexities of environment matrices.Hence,pretreatment steps,such as sample purification and concentration,are key along with various processes that enhance the accuracy and sensitivity of the detection method.To date,researchers have successfully developed a variety of efficient and reliable sample-pretreatment techniques that are based on different principles.Among these,magnetic solid-phase extraction(MSPE)is a rapid and efficient sample-pretreatment technology that is based on the similar solid-phase-extraction(SPE)principle,which mainly enriches target analytes by exploiting their interactions with functional groups on the surfaces of magnetic materials,thereby achieving rapid separation when an external magnetic field is applied.MSPE has been a focus of attention in the environmental-sample-pretreatment,food-analysis,and other fields owing to advantages that include ease of operation,low cost,and high enrichment efficiency.The selection of the magnetic material is key to MSPE process because traditional magnetic materials exhibit certain functionality limitations.Accordingly,designing and synthesizing green and efficient functionalized magnetic materials have become a research focus in this field,with researchers having extensively explored multiple ways of preparing functionalized modified magnetic materials through the introduction of a variety of emerging materials,including metal-organic frameworks(MOFs),covalent organic frameworks(COFs),carbon nanotubes(CNTs),graphene oxide(GO),and other specific functional groups to modify magnetic materials and effectively expanded the applications scope of MSPE.Among these,COFs are porous crystalline materials consisting of light elements(C,N,H,O and B,etc.)linked through covalent bonds.COFs are mainly classified as imine COFs,boronic-acid COFs,triazin
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