Citation: Wei Li, Jinfan Xu, Yongjun Zhang, Ying Guan. 共价有机框架整体材料的制备及食品安全非靶向筛查应用——推荐一个仪器分析综合化学实验[J]. University Chemistry, ;2025, 40(6): 276-285. doi: 10.12461/PKU.DXHX202406013 shu

共价有机框架整体材料的制备及食品安全非靶向筛查应用——推荐一个仪器分析综合化学实验

1.
College of Pharmacy, Tiangong University, Tianjin 300387, China;
2.
College of Chemistry, Nankai University, Tianjin 300071, China

Received Date: 11 June 2024
Revised Date: 15 August 2024

推荐了一个以实际应用为导向的本科生仪器分析综合实验：以食品安全非靶向筛查为情景，制备了三聚氰胺海绵(MF)与共价有机框架(COF)复合的整体材料(MF@COF)，将其应用于食品非靶向筛查的样品前处理过程。COF通过原位生长键合在廉价易得的MF表面，能有效净化食品基质并回收化学危害因子，同时避免二次污染。实验包含MF@COF材料的制备和表征、吸附植物色素基质、化学危害因子加标回收等内容，以及实验课后数据处理和模型分析。实验立足于席夫碱反应、吸附等温线、动力学等基础知识，加强学生对紫外-可见分光光度法的应用能力，又引入COFs材料的科研前沿，同时结合食品安全检测的实际应用，兼具基础性、综合性和趣味性。通过实验培养学生的创新思维和实践能力，也增强学生对分析化学的兴趣和认同感。
- Covalent organic framework,
- Food safety,
- Adsorption,
- Comprehensive chemistry experiment
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沈阳化工大学材料科学与工程学院沈阳 110142