The use of plastic bags in the long-term contact with food may cause certain harm to human health due to the production process of plastic bags and the use of plasticizers such as BPA. Therefore, the analysis and research methods of BPA and other harmful substances are receiving extensive attention. Molecularly imprinted polymers have attracted much attention for their high selectivity, while magnetic metal–organic frameworks (MOFs) have been widely used for their excellent adsorption potential. However, the current methods of synthesizing these polymers typically require many steps and are time-consuming. Additionally, these methods involve the use of large amounts of solvents, which are not environmentally friendly and sustainable. This study proposed an easy, convenient, quick, and green method for synthesizing magnetic copper MOF molecularly imprinted polymers (MCMMIPs) using a one-pot technique to overcome these challenges. The resulting MCMMIPs exhibited excellent magnetic separation ability (20 emu/g), a large specific surface area (289.4 m²/g), and a well-defined imprinted cavity. MCMMIPs have been successfully applied to the extraction of BPA in plastic bags with a detection limit of 1.01 µg/kg and recoveries ranging from 72.1% to 102.85%. More importantly, the detection method proposed based on the material has been successfully applied to the detection of BPA in plastic bags, with a good detection effect.

由于塑料袋的生产过程以及BPA等增塑剂的使用，塑料袋在长期接触食品的过程中可能会对人体健康造成一定的危害。因此，BPA等有害物质的分析研究方法受到广泛关注。分子印迹聚合物因其高选择性而备受关注，而磁性金属有机框架（MOF）因其优异的吸附潜力而被广泛应用。然而，目前合成这些聚合物的方法通常需要许多步骤并且非常耗时。此外，这些方法涉及使用大量溶剂，不环保且不可持续。本研究提出了一种简单、方便、快捷、以及使用一锅法技术合成磁性铜 MOF 分子印迹聚合物 (MCMMIP) 的绿色方法来克服这些挑战。所得的MCMMIPs表现出优异的磁分离能力(20 emu/g)、大的比表面积(289.4 m² /g），以及清晰的印迹腔。MCMMIPs已成功应用于塑料袋中BPA的提取，检出限为1.01 µg/kg，回收率为72.1%至102.85%。更重要的是，基于该材料提出的检测方法已成功应用于塑料袋中BPA的检测，检测效果良好。