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磁性β-环氧烯分子印记聚合物用于从水中选择性提取 perfluorooctanoic 酸

Nompumelelo Malatji^1,2, Anele Mpupa³, Boris Mizaikoff^1,4,5

¹Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, PO Box 17011, 2028 Doornfontein, South Africa.

|September 15, 2025

概括

一种新的磁性聚合物吸附剂在复杂的水样中有效量化 perfluorooctanoic 酸 (PFOA). 这种方法为环境监测提供了高灵敏度和精度.

科学领域:

环境化学环境化学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

在水中存在的 perfluorooctanoic 酸 (PFOA) 是一个日益严重的环境问题.
在复杂矩阵中以低度量化PFOA在分析上具有挑战性.

研究的目的:

开发一种灵敏而准确的方法,用于在真实水样中测定PFOA.
使用磁性分子印记聚合物来增强PFOA检测.

主要方法:

在磁性茶废活性炭上使用表面印记制备磁性β-cyclodextrin基分子印记聚合物 (TWAC-Fe3O4@β-CD-MIP).
优化用于PFOA提取的吸附条件.
使用UHPLC-ESI-MS/MS.进行量化.

主要成果:

实现了17-5000 ng/L (R2 = 0.9990) 的线性范围,LOD为8.6 ng/L,LOQ为29 ng/L.
证明了高精度 (%RSD < 3.7%) 和准确性 (102-106%的恢复).
吸附剂显示可重复使用3个周期,回收率>60%.

结论:

开发的TWAC-Fe3O4@β-CD-MIP方法对于复杂水中的敏感PFOA测定是有效的.
分子印记聚合物为环境污染物分析提供了一个有前途的方法.

关键词:

化学化学化学环境技术环境技术材料科学是一种材料科学.分子印记技术分子印记技术纳米材料是一种纳米材料.

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