Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples

IF 1.8 4区化学 Q3 CHEMISTRY, ANALYTICAL

Analytical Sciences Pub Date : 2024-05-25 DOI:10.1007/s44211-024-00601-y

Ou Sha, Yunfan Wu, Xincheng Dai, Huiwen Li, Yuan Xu, Ziwen Wang, Pu Zhang

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Abstract

In this study, a reliable method for determining eugenol content in environmental water samples was established by combining magnetic solid-phase extraction with high-performance liquid chromatography. Magnetic molecular imprinted polymers MGO@MIPs were prepared through surface molecular imprinting technique with eugenol as the template molecule. The material displayed good superparamagnetic properties and magnetic responsiveness in favor of rapid separation. The adsorption properties of MGO@MIPs for eugenol were evaluated through adsorption kinetics and selectivity experiments. MGO@MIPs were found to have favorable reusability and obvious selectivity for eugenol. In addition, adsorption and elution conditions were investigated. Under optimal conditions, a linear relationship was obtained between the concentration of eugenol and its peak area in the range of 0.02–5 mg/L (R² = 0.9998) and the limit of detection was 4.0 × 10^–6 mg/mL. The performance of the established method was assessed with the average recovery of 96.59–102.20% and the relative standard deviation (RSD) below 3.5%. The application of this method provides a new perspective for the separation, enrichment and detection of eugenol in water environment.

Graphical abstract

Preparation of the molecularly imprinted polymers

Abstract Image

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基于磁性氧化石墨烯的可重复使用磁性分子印迹聚合物，用于选择性识别和检测环境水样中的丁香酚。

本研究采用磁性固相萃取与高效液相色谱相结合的方法，建立了测定环境水样中丁香酚含量的可靠方法。以丁香酚为模板分子，通过表面分子印迹技术制备了磁性分子印迹聚合物 MGO@MIPs。该材料具有良好的超顺磁性和磁响应性，有利于快速分离。通过吸附动力学和选择性实验评估了 MGO@MIPs 对丁香酚的吸附性能。结果表明，MGO@MIPs 具有良好的重复使用性和对丁香酚的明显选择性。此外，还研究了吸附和洗脱条件。在最佳条件下，丁香酚浓度与峰面积在 0.02-5 mg/L 范围内呈线性关系（R2 = 0.9998），检出限为 4.0 × 10-6 mg/mL。该方法的平均回收率为96.59%～102.20%，相对标准偏差（RSD）小于3.5%。该方法的应用为水环境中丁香酚的分离、富集和检测提供了新的思路。

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来源期刊

Analytical Sciences 化学-分析化学

CiteScore

2.90

自引率

18.80%

发文量

232

审稿时长

1 months

期刊介绍： Analytical Sciences is an international journal published monthly by The Japan Society for Analytical Chemistry. The journal publishes papers on all aspects of the theory and practice of analytical sciences, including fundamental and applied, inorganic and organic, wet chemical and instrumental methods. This publication is supported in part by the Grant-in-Aid for Publication of Scientific Research Result of the Japanese Ministry of Education, Culture, Sports, Science and Technology.