A precise and efficient detection of Beta-Cyfluthrin via fluorescent molecularly imprinted polymers with ally fluorescein as functional monomer in agricultural products.
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 300nm and 50nm, 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 10.11-80nM described by the Stern-Volmer equation. The limit of detection (LOD) was evaluated with the equation LOD=3σ/S and was found to be 10.11nM. 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.
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China.
Hao
H
Qiu
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China.
Lin
L
Gao
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China.
Jixiang
J
Wang
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China.
Jianming
J
Pan
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China. Electronic address: yys@mail.ujs.edu.cn.
Yongsheng
Y
Yan
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China. Electronic address: qhujs17@126.com.
Xifeng
X
Zhang
D018556:Crops, Agricultural / Q000737:chemistry*; D019793:Fluorescein / Q000737:chemistry*; D005453:Fluorescence; D007306:Insecticides / Q000032:analysis*; D057230:Limit of Detection; D008863:Microspheres; D054802:Molecular Imprinting; D009570:Nitriles / Q000032:analysis*; D011108:Polymers / Q000737:chemistry*; D011722:Pyrethrins / Q000032:analysis*; D012822:Silicon Dioxide / Q000737:chemistry
D007306:Insecticides; D009570:Nitriles; D011108:Polymers; D011722:Pyrethrins; D012822:Silicon Dioxide; C052570:cyfluthrin; D019793:Fluorescein
Beta-Cyfluthrin; Fluorescence detection; Fluorescent molecularly imprinted polymers