Facile synthesis of molecularly-imprinted magnetic-MoS2 nanosheets for selective and sensitive detection of ametryn

IF 2 3区化学 Q4 CHEMISTRY, PHYSICAL

Chemical Physics Pub Date : 2024-11-12 DOI:10.1016/j.chemphys.2024.112526

Mustafa Bilici, Adem Zengin

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Abstract

In the present study, a novel analytical method was developed for selective and sensitive detection of ametryn in tap and lake water samples based on molecular imprinting technology with high performance liquid chromatography-ultraviolet detection. For this purpose, molecularly-imprinted magnetic MoS₂ (MIP@mag-MoS₂) particles were synthesized via surface initiated reversible addition-fragmentation chain transfer polymerization. The investigation of the rebinding properties, selective recognition ability, and reusability of the MIP@mag-MoS₂ demonstrated their high adsorption capacity, outstanding selectivity, rapid adsorption kinetics, and capability for multiple uses, with an imprinting factor of 4.39. The detection limits for ametryn were 0.031 µ g/L and 0.041 µ g/L in tap water and lake water, respectively. The proposed method also had high recovery percentage and low relative standard deviations for the water samples spiked with ametryn. The results suggest that the combination of mag-MoS₂ with MIP layer is a prospective alternative analytical method for quantification of ametryn.

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分子印迹磁性-MoS2 纳米片的简易合成，用于选择性和灵敏地检测四甲基砷

本研究基于分子印迹技术和高效液相色谱-紫外检测技术，开发了一种新型分析方法，用于选择性、灵敏地检测自来水和湖水样品中的乙草胺。为此，通过表面引发的可逆加成-断裂链转移聚合合成了分子印迹磁性 MoS2（MIP@mag-MoS2）颗粒。对 MIP@mag-MoS2 的再结合特性、选择性识别能力和可重复使用性的研究表明，其吸附能力强、选择性突出、吸附动力学迅速，并可多次使用，印迹因子为 4.39。自来水和湖水中乙草胺的检出限分别为 0.031 µ g/L 和 0.041 µ g/L。该方法对添加了双甲脒的水样具有较高的回收率和较低的相对标准偏差。结果表明，mag-MoS2 与 MIP 层的结合是一种很有前景的定量分析方法。

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来源期刊

Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

4.30%

发文量

278

审稿时长

39 days

期刊介绍： Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.