Fabrication of a Magnetic Fluorinated Covalent Organic Framework for the Selective Capture of Benzoylurea Insecticide Residue in Beverages

IF 5.4 2区 医学 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Biomaterials Science & Engineering Pub Date : 2021-10-21 DOI:10.1021/acsami.1c15869
Guiju Xu, Longfei Hou, Chuqing Liu, Xiaoli Wang, Lu Liu, Na Li, Jin-Ming Lin, Ru-Song Zhao*
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引用次数: 20

Abstract

Efficient capture of benzoylurea insecticide (BU) residue in food is a vital procedure for food safe monitoring. Herein, a core–shell structured magnetic fluorinated covalent organic framework with good magnetic responsiveness and abundant fluorine affinity sites was successfully synthesized, suitable for magnetic solid-phase extraction (MSPE) of BUs. Using a room-temperature synthesis strategy, the magnetic fluorinated covalent organic framework was fabricated by in situ polymerization of 1,3,5-tris(4-aminophenyl) triazine (TAPT) and 2,3,5,6-tetrafluoroterephthaldehyde (TFTA) on the surface of carboxylated Fe3O4 nanoparticles. The competitive adsorption experiment and molecular simulation verified that this magnetic fluorinated covalent organic framework possesses favorable adsorption affinity for BUs. This magnetic fluorinated covalent organic framework could be easily regenerated and reused at least eight times with no reduction of enrichment performance. Combining this magnetic fluorinated covalent organic framework-based MSPE with high-performance liquid chromatography-tandem mass spectrometry, a novel sensitive method for the analysis of BUs was developed. In yellow wine and fruit juice samples, good linear correlations were obtained for BUs in the range of 10–2000 and 20–4000 ng·L–1, respectively. The limit of quantitation of the BUs ranged from 1.4 to 13.3 ng·L–1 in the two beverage matrices. Desirable precision was achieved, with intraday and interday relative standard deviations lower than 11%.

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磁性氟化共价有机骨架的制备及其对饮料中苯甲酰脲类杀虫剂残留的选择性捕获
食品中苯甲酰脲类杀虫剂残留的有效捕获是食品安全监测的重要环节。本文成功合成了一种核壳结构的磁性氟化共价有机骨架,具有良好的磁响应性和丰富的氟亲和位点,适合于BUs的磁固相萃取(MSPE)。采用室温合成策略,将1,3,5-三(4-氨基苯基)三嗪(tpt)和2,3,5,6-四氟对苯二醛(TFTA)原位聚合在羧化Fe3O4纳米颗粒表面,制备了磁性氟化共价有机骨架。竞争吸附实验和分子模拟验证了该磁性氟化共价有机骨架对BUs具有良好的吸附亲和力。这种磁性氟化共价有机骨架可以很容易地再生和重复使用至少8次,而不会降低富集性能。将基于磁氟化共价有机骨架的MSPE与高效液相色谱-串联质谱相结合,建立了一种新型的BUs灵敏分析方法。在黄酒和果汁样品中,BUs分别在10 ~ 2000和20 ~ 4000 ng·L-1范围内呈良好的线性相关。两种饮料基质中BUs的定量限为1.4 ~ 13.3 ng·L-1。获得了理想的精度,日内和日间相对标准偏差低于11%。
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来源期刊
ACS Biomaterials Science & Engineering
ACS Biomaterials Science & Engineering Materials Science-Biomaterials
CiteScore
10.30
自引率
3.40%
发文量
413
期刊介绍: ACS Biomaterials Science & Engineering is the leading journal in the field of biomaterials, serving as an international forum for publishing cutting-edge research and innovative ideas on a broad range of topics: Applications and Health – implantable tissues and devices, prosthesis, health risks, toxicology Bio-interactions and Bio-compatibility – material-biology interactions, chemical/morphological/structural communication, mechanobiology, signaling and biological responses, immuno-engineering, calcification, coatings, corrosion and degradation of biomaterials and devices, biophysical regulation of cell functions Characterization, Synthesis, and Modification – new biomaterials, bioinspired and biomimetic approaches to biomaterials, exploiting structural hierarchy and architectural control, combinatorial strategies for biomaterials discovery, genetic biomaterials design, synthetic biology, new composite systems, bionics, polymer synthesis Controlled Release and Delivery Systems – biomaterial-based drug and gene delivery, bio-responsive delivery of regulatory molecules, pharmaceutical engineering Healthcare Advances – clinical translation, regulatory issues, patient safety, emerging trends Imaging and Diagnostics – imaging agents and probes, theranostics, biosensors, monitoring Manufacturing and Technology – 3D printing, inks, organ-on-a-chip, bioreactor/perfusion systems, microdevices, BioMEMS, optics and electronics interfaces with biomaterials, systems integration Modeling and Informatics Tools – scaling methods to guide biomaterial design, predictive algorithms for structure-function, biomechanics, integrating bioinformatics with biomaterials discovery, metabolomics in the context of biomaterials Tissue Engineering and Regenerative Medicine – basic and applied studies, cell therapies, scaffolds, vascularization, bioartificial organs, transplantation and functionality, cellular agriculture
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