咪唑酯
化学
固相萃取
沸石咪唑盐骨架
介孔材料
磁性纳米粒子
纳米颗粒
检出限
化学工程
固相微萃取
色谱法
比表面积
材料科学
萃取(化学)
吸附
纳米技术
金属有机骨架
无机化学
有机化学
气相色谱-质谱法
质谱法
催化作用
工程类
作者
Baichun Wang,Bin Liu,Yinghua Yan
出处
期刊:Journal of Analytical Chemistry
[Springer Nature]
日期:2021-04-01
卷期号:76 (4): 430-441
被引量:7
标识
DOI:10.1134/s1061934821040110
摘要
In this work, zeolitic imidazolate framework (ZIF-8) coated mesoporous magnetic nanoparticles (Fe3O4@PDA@mSiO2@ZIF-8) were prepared through a facile and efficient strategy and used as a magnetic solid phase extraction platform for phthalates detection. Polydopamine (PDA) not only provides a hydrophilic layer, but also possesses π electrons for aromatic compounds recognition; mSiO2 endows the nanoparticles with large surface area and regular channels, which facilitates the rapid transport of phthalates. The prepared Fe3O4@PDA@mSiO2@ZIF-8 with imposed properties showed ultrahigh efficiency and reusability for phthalates determination in human plasma samples. The linearity range was 50–8000 ng/mL, limits of detection were between 50–80 ng/mL, the intra-day RSDs were lower than 4.8%, inter-day RSDs were lower than 6.7%, the recoveries ranged from 90 to 107%. The new prepared nanoparticles displayed potential performance for aromatic compounds detection.
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