基于荧光离子液体的表面分子印迹传感材料合成及其在检测香兰素中的应用

Abstract： Vanillin is a common food flavoring agent.However， excessive intake may pose health risks to the human body.Therefore， it is urgent to establish efficient and sensitive detection methods.Using halloysite nanotubes as the carrier， fluorescent ionic liquid as the fluorescent group and functional monomer， a sensing material with specific recognition ability for vanillin was prepared by surface molecular imprinting technology.The successful synthesis of the sensing material was confirmed through scanning electron microscopy， Fourier transform infrared spectroscopy and X-ray diffraction.The fluorescence intensity of the sensing material at 333 nm decreased regularly with the increased concentration of vanillin， showing a good fluorescence response characteristic.The fluorescence intensity