磁性固相萃取因在外部磁场下能够解决柱填充和相分离问题而受到越来越多的重视.磁性固相萃取吸附剂是以磁性纳米粒子为核,并由一种或多种无机及有机材料如二氧化硅、碳纳米管、氧化铝、有机小分子、有机高分子等经单层或多层包覆而成的复合纳米粒子.有关磁性固相萃取吸附剂的应用文献及研究进展呈爆发式增长,但都未对此类吸附剂的分类做详细探讨.在查阅大量文献的基础上,分别按结构及吸附剂与分析物间的作用方式对磁性固相萃取吸附剂进行了分类,还介绍了该吸附剂在自动化系统中在线联机操作的研究进展,以及磁性固相萃取吸附剂的未来前景.
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