Ultra-fast and selective extraction of phenolic acids by multifunctional and magnetic nanomaterials in honeysuckle

IF 3.8 2区化学 Q1 BIOCHEMICAL RESEARCH METHODS

Journal of Chromatography A Pub Date : 2025-05-07 DOI:10.1016/j.chroma.2025.466028

Jianhui Dong , Xiaoyi Chen , Chenyang Wang , Xiaolong Yao , Juanjuan Zhao , Shengxiang Zhang , Yating Shi , Junjie Ou , Ruixia Gao , Nan Deng , Yangyang Bian

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Abstract

Novel multifunctional magnetic nanomaterials were developed for ultra-fast and selective extraction of phenolic acids across a wide pH range. The magnetic core was firstly coated with SiO₂, followed by surface modification with 4-vinylphenylboronic acid (VPBA), 1-vinylimidazole (VI) and methacrylamido propyl trimethyl ammonium chloride (MAPTAC) as functional monomers. The characterization, repeatability, adsorption kinetics, and adsorption isotherms were investigated, and five different phenolic acids were used to demonstrate its selectivity. A maximum adsorption capacity of 86.58 mg/g was determined by the Langmuir adsorption model. The limits of detection and quantification of the method were 0.01 μg/mL and 0.04 μg/mL, respectively. The experimental results exhibited that the resultant multifunctional nanomaterials had satisfactory magnetic property, fast kinetics, favorable adsorption capacity, excellent specificity and higher repeatability. The Fe₃O₄@MPS-SPE exhibited ultra-fast kinetics with a complete adsorption of 2 s and a wide pH range of 3∼8. The multifunctional magnetic nanomaterials were successfully used as sorbents for selective extraction of phenolic acids in honeysuckle.

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多功能磁性纳米材料超快速选择性提取金银花中酚酸

开发了一种新型多功能磁性纳米材料，用于在宽pH范围内超快速、选择性地提取酚酸。首先用SiO2包覆磁芯，然后用4-乙烯基苯基硼酸（VPBA）、1-乙烯基咪唑（VI）和甲基丙烯酰胺丙基三甲基氯化铵（MAPTAC）作为功能单体进行表面改性。研究了表征、重复性、吸附动力学和吸附等温线，并用5种不同的酚酸来证明其选择性。Langmuir吸附模型测定的最大吸附量为86.58 mg/g。方法的检出限为0.01 μg/mL，定量限为0.04 μg/mL。实验结果表明，合成的多功能纳米材料具有良好的磁性能、快速的动力学、良好的吸附能力、优良的特异性和较高的重复性。Fe3O4@MPS-SPE表现出超快的吸附动力学，完全吸附2s， pH范围3 ~ 8。研究了磁性纳米多功能材料作为吸附剂对金银花中酚酸的选择性萃取。

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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.