College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, PR China.
College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, PR China; Food Laboratory of Zhongyuan, Wenming Road 100, Luohe, Henan 462000, PR China; Flavour Science Research Center of Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, PR China.
J Chromatogr A. 2024 Aug 16;1730:465113. doi: 10.1016/j.chroma.2024.465113. Epub 2024 Jun 23.
Ionic covalent organic frameworks with both crystallinity and charged sites have attracted significant attention from the scientific community. The versatile textural structures, precisely defined channels, and abundant charged sites of ionic COFs offer immense potential in various areas such as separation, sample pretreatment, ion conduction mechanisms, sensing applications, catalytic reactions, and energy storage systems. This review presents a comprehensive overview of facile preparation methods for ionic covalent organic frameworks (iCOFs), along with their applications in food sample pretreatment techniques such as solid-phase extraction (SPE), magnetic solid-phase extraction (MSPE), and dispersive solid-phase extraction (DSPE). Furthermore, it highlights the extensive utilization of iCOFs in detecting various food contaminants including pesticides, contaminants from food packaging, veterinary drugs, perfluoroalkyl substances, and poly-fluoroalkyl substances. Specifically, this review critically discusses the limitations, challenges, and future prospects associated with employing iCOF materials to ensure food safety.
具有晶态和带电位点的离子共价有机骨架引起了科学界的广泛关注。离子 COF 具有多样的结构、精确定义的通道和丰富的带电位点，在分离、样品预处理、离子传导机制、传感应用、催化反应和储能系统等领域具有巨大的潜力。本综述全面介绍了离子共价有机骨架（iCOF）的简便制备方法，以及它们在食品样品预处理技术中的应用，如固相萃取（SPE）、磁性固相萃取（MSPE）和分散固相萃取（DSPE）。此外，它还强调了 iCOF 在检测各种食品污染物（包括农药、食品包装污染物、兽药、全氟烷基物质和多氟烷基物质）方面的广泛应用。具体来说，本综述批判性地讨论了使用 iCOF 材料确保食品安全所面临的限制、挑战和未来展望。
