高吸附环境水样中全氟烷基和多氟烷基物质的叔胺功能化金属有机框架

IF 3.8 2区化学 Q1 BIOCHEMICAL RESEARCH METHODS

Journal of Chromatography A Pub Date : 2025-03-31 DOI:10.1016/j.chroma.2025.465926

Zhuoning Li , Xiaoli Wang , Leilei Wang , Lu Liu , Lingxi Zhao , Na Li , Hailong Jiang , Zhineng Hao , Jingfu Liu , Xiangfeng Chen , Rusong Zhao

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引用次数: 0

摘要

对全氟烷基和多氟烷基物质（PFASs）的敏感监测对于环境和健康风险评估至关重要。本研究采用一锅法合成了带正电叔胺（uuo -67- ch2 - n (CH3)2）功能化的金属有机骨架（MOFs），该方法将溶剂热mfs组装与甲酰基的原位还原胺化相结合。制备的UiO-67-CH2-N(CH3)2具有优异的固相萃取（SPE）吸附剂性能，其对PFASs的高效吸附归因于静电吸引和氢键作用。该方法检出限低（0.02 ~ 0.88 ng·L−1），线性度好（0.2 ~ 400 ng·L−1），精密度高(RSD <；8.18%)。通过对环境水体中PFASs的分析，评价了所建立方法的有效性，加标样品的回收率为84.0 ~ 117%,RSD <；13%。本研究突出了功能化UiO-67-CH2-N(CH3)2在痕量PFASs分析中的功效，推进了其在环境监测中的应用。

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Tertiary amine-functionalized metal-organic frameworks for high adsorption of perfluoroalkyl and polyfluoroalkyl substances in environmental water samples

Sensitive monitoring of per- and polyfluoroalkyl substances (PFASs) is critical for environmental and health risk assessment. In this work, metal-organic frameworks (MOFs) functionalized with positively charged tertiary amines (UiO-67-CH₂-N(CH₃)₂) were synthesized by the one-pot route, which integrated solvothermal MOFs assembly and in-situ reductive amination of formyl groups. The fabricated UiO-67-CH₂-N(CH₃)₂ exhibited exceptional performance as adsorbents for solid-phase extraction (SPE), and the efficient adsorption of PFASs was attribute to the electrostatic attraction and hydrogen bonding. The proposed SPE-HPLC-MS/MS method demonstrated low limit of detection (0.02–0.88 ng·L⁻¹), good linearity (0.2–400 ng·L⁻¹) and high precision (RSD < 8.18 %). The effectiveness of the established method was assessed through the analysis of PFASs in environmental waters, and recoveries in spiked samples were 84.0–117 % with RSD < 13 %. This study highlighted the efficacy of the functionalized UiO-67-CH₂-N(CH₃)₂ in trace PFASs analysis, advancing their application in environmental monitoring.

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来源期刊

Journal of Chromatography A 化学-分析化学

CiteScore

7.90

自引率

14.60%

发文量

742

审稿时长

45 days

期刊介绍： The Journal of Chromatography A provides a forum for the publication of original research and critical reviews on all aspects of fundamental and applied separation science. The scope of the journal includes chromatography and related techniques, electromigration techniques (e.g. electrophoresis, electrochromatography), hyphenated and other multi-dimensional techniques, sample preparation, and detection methods such as mass spectrometry. Contributions consist mainly of research papers dealing with the theory of separation methods, instrumental developments and analytical and preparative applications of general interest.