Interface-assisted synthesized covalent organic framework film for efficient extraction of microcystins in aquatic organisms.

IF 5.6 1区化学 Q1 CHEMISTRY, ANALYTICAL Talanta Pub Date : 2025-01-01 Epub Date: 2024-10-16 DOI:10.1016/j.talanta.2024.127051

Wenmin Zhang, Zhiyong Wang, Lan Zhang

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Abstract

Covalent organic framework (COF) film-based solid-phase extraction (F-SPE) has garnered great attention in sample pretreatment. However, harsh synthesis conditions of COF films have severely hindered their potential applications. In this study, a kind of COF (TPB-DMTP) films were fabricated via a liquid-liquid interfacial synthesis method at a mild condition. The obtained films exhibited excellent extraction performance towards microcystins (MCs, an algal toxin) due to their porous structure, high specific surface area and abundant accessible adsorption sites. Coupled TPB-DMTP films-based F-SPE with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), a sensitive and environment-friendly analytical method was established for MCs detection. Under the optimal conditions, this method possessed wide linear ranges (2.0-800.0 pg mL^-1) with good linearity (R ≥ 0.9991), low limits of detection (0.8-3.0 pg mL^-1) and satisfactory precision (RSDs ≤7.1 %), which then successfully applied for MCs detection in actual aquatic organism samples. Trace amounts of MC-RR (42.4 pg mL^-1) and MC-YR (14.6 pg mL^-1) were detected in the mussels. The results demonstrate the excellent application potential of COF films in sample pretreatment.

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界面辅助合成共价有机框架膜，用于高效提取水生生物中的微囊藻毒素。

基于共价有机框架（COF）薄膜的固相萃取（F-SPE）在样品预处理方面受到极大关注。然而，COF 膜苛刻的合成条件严重阻碍了其潜在的应用。本研究采用液-液界面合成法，在温和的条件下制备了一种 COF（TPB-DMTP）薄膜。由于薄膜具有多孔结构、高比表面积和丰富的吸附位点，因此对微囊藻毒素（MCs）具有优异的萃取性能。将基于 TPB-DMTP 薄膜的 F-SPE 与高效液相色谱-串联质谱（HPLC-MS/MS）联用，建立了一种灵敏、环保的 MCs 检测分析方法。该方法线性范围宽（2.0～800.0 pg mL-1）、线性关系良好（R≥0.9991）、检出限低（0.8～3.0 pg mL-1）、精密度好（RSD≤7.1%），可用于实际水生生物样品中MCs的检测。在贻贝中检测到了微量的 MC-RR（42.4 pg mL-1）和 MC-YR（14.6 pg mL-1）。这些结果证明了 COF 薄膜在样品预处理方面的巨大应用潜力。

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来源期刊

Talanta 化学-分析化学

CiteScore

12.30

自引率

4.90%

发文量

861

审稿时长

29 days

期刊介绍： Talanta provides a forum for the publication of original research papers, short communications, and critical reviews in all branches of pure and applied analytical chemistry. Papers are evaluated based on established guidelines, including the fundamental nature of the study, scientific novelty, substantial improvement or advantage over existing technology or methods, and demonstrated analytical applicability. Original research papers on fundamental studies, and on novel sensor and instrumentation developments, are encouraged. Novel or improved applications in areas such as clinical and biological chemistry, environmental analysis, geochemistry, materials science and engineering, and analytical platforms for omics development are welcome. Analytical performance of methods should be determined, including interference and matrix effects, and methods should be validated by comparison with a standard method, or analysis of a certified reference material. Simple spiking recoveries may not be sufficient. The developed method should especially comprise information on selectivity, sensitivity, detection limits, accuracy, and reliability. However, applying official validation or robustness studies to a routine method or technique does not necessarily constitute novelty. Proper statistical treatment of the data should be provided. Relevant literature should be cited, including related publications by the authors, and authors should discuss how their proposed methodology compares with previously reported methods.