Abstract: The halloysite nanotubes surface molecularly imprinted polymers (HNTs-SMIPs) were prepared by precipitation polymerization, using halloysite nanotubes as the carrier material, coumarin-3-carboxylic acid and pentadecanolide as dummy templates of zearalenone, methacrylic acid as the functional monomer, and ethylene glycol dimethacrylate as the cross-linker. Then, the HNTs-SMIPs were treated with etching technique to obtain halloysite nanotubes hollow molecularly imprinted polymers (HNTs-HMIPs). HNTs-SMIPs and HNTs-HMIPs were characterized by scanning electron microscope, transmission electron microscope, fourier transform infrared spectrum and X-ray diffraction. The adsorption capacity of HNTs-HMIPs was compared with HNTs-SMIPs. The developed HNTs-HMIPs were applied as absorbents for solid phase extraction. A new method was established by combining with high performance liquid chromatography-fluorescence detector for the detection of zearalenone. The method was developed with a recovery of 77.13-102.4% and a relative standard deviation of less than 5.59%. The limit of detection of oats and wheat were 1.67 μg kg-1 and 0.5 μg kg-1, respectively. The performance of self-made solid phase extraction column was compared with immune affinity column. The developed method has been successfully applied to the detection of zearalenone in complex grain matrices
Template and target information: zearalenone
Author keywords: zearalenone, Grain samples, Etching, Hollow imprinted Materials