Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7586934 | Food Chemistry | 2017 | 8 Pages |
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 300Â nm and 50Â 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 10.11-80Â nM described by the Stern-Volmer equation. The limit of detection (LOD) was evaluated with the equation LODÂ =Â 3Ï/S and was found to be 10.11Â 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.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Hao Qiu, Lin Gao, Jixiang Wang, Jianming Pan, Yongsheng Yan, Xifeng Zhang,