In this research, β-cyclodextrin magnetic-graphene-oxide pyrenyl gel composite (β-mGOP) was employed to remove trace mycotoxins from food products. The β-mGOP gels exhibited a three-dimensional macroporous structure that facilitated the rapid diffusion of target molecules into the nanoporous structure of the covalent organic frameworks embedded within the gel. The adsorption process of mycotoxins onto the β-mGOP gels conformed to the pseudo-second-order kinetics and the Freundlich adsorption model. These findings demonstrated exceptional rapid adsorption kinetics without pore collapse, making the material suitable as fillers for solid-phase extraction adsorbents. Additionally, a novel screening technique utilizing β-mGOP gels in conjunction with cyclic ion mobility mass spectrometry was developed to illustrate the efficacy of β-mGOP gels in capturing various trace substances in food and enhancing detection resolution. The versatile, uncomplicated, and scalable characteristics of β-mGOP gels indicate their promising potential for future applications in high-throughput analysis of trace contaminants in food.

中文翻译：

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使用 UHPLC-cIMS 合成 β-环糊精磁性-石墨烯-氧化物芘 （β-mGOP） 凝胶，用于高通量富集和检测食品中的各种痕量霉菌毒素


在本研究中，采用 β-环糊精磁性-石墨烯-氧化物芘基凝胶复合物 （β-mGOP） 去除食品中的微量霉菌毒素。β-mGOP 凝胶表现出三维大孔结构，有利于目标分子快速扩散到嵌入凝胶内的共价有机框架的纳米多孔结构中。霉菌毒素在 β-mGOP 凝胶上的吸附过程符合准二级动力学和 Freundlich 吸附模型。这些发现证明了卓越的快速吸附动力学，没有孔隙塌陷，使该材料适合用作固相萃取吸附剂的填料。此外，开发了一种利用 β-mGOP 凝胶与循环离子淌度质谱法相结合的新型筛选技术，以阐明 β-mGOP 凝胶在捕获食品中各种痕量物质和提高检测分辨率方面的功效。β-mGOP 凝胶的通用、简单和可扩展特性表明其未来在食品中痕量污染物的高通量分析中具有广阔的应用潜力。