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Abstract: In this study, an effective and precise fluorescent molecularly imprinted polymers (FMIPs) for the determination of Beta-Cyfluthrin (BC) was synthesized via precipitation polymerization with SiO2 as the carrier, BC as the target molecule, ally fluorescein as the functional monomer, trimethylolpropane trimethacrylate (TRIM) as the crosslinker. Moreover, the characteristic of material has been measured by FTIR, TEM, SEM, TGA, LSCM and fluorescence spectrophotometer. Average diameter and shell thickness of as-synthesized microspheres were 300 nm and 50 nm, respectively. An excellent linear relationship of SiO2-MPTMS@FMIPs with a correlation coefficient of 0.9919 could be gained covering a wide concentration range of 10.11-80 nM described by the Stern-Volmer equation. The limit of detection (LOD) was evaluated with the equation LOD = 3σ/S and was found to be 10.11 nM. The study demonstrated that SiO2-MPTMS@FMIPs could improve the determination for BC and illustrated the good prospects of SiO2-MPTMS@FMIPs for BC detection in agricultural products
Template and target information: beta-cyfluthrin, BC
Author keywords: Fluorescent molecularly imprinted polymers, Beta-Cyfluthrin, fluorescence detection