Molecular imprinted polymer capped luminescent metal -organic framework for the determination of pyrethroids and its metabolite
文献类型： 外文期刊
作者： Bai, Long 1 ; Ye, Tai 1 ; Si, Wenshuai 1 ; Yu, Jinsong 1 ; Yuan, Min 1 ; Cao, Hui 1 ; Hao, Liling 1 ; Wu, Xiuxiu 1 ; Yin, Fengqin 1 ; Luo, Xiaorong 1 ; Qin, Ruiyuan 1 ; Bai, Bing 2 ; Xu, Fei 1 ;
作者机构： 1.Univ Shanghai Sci & Technol, Shanghai Engn Res Ctr Food Rapid Detect, Sch Hlth Sci & Engn, Shanghai 200093, Peoples R China
2.Shanghai Acad Agr Sci, Inst Agrifood Stand & Testing Technol, 1000 Jinqi Rd, Shanghai 201403, Peoples R China
关键词： Energy competition; Pesticides; Luminescent MOFs; Molecularly imprinted polymers; Fluorescence quenching; Food safety
期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：4.8； 五年影响因子：4.5 ）
ISSN： 0026-265X
年卷期： 2023 年 193 卷
页码：
收录情况： SCI
摘要： Monitoring the pyrethroids and its metabolite is of importance to estimate the potential risk of human exposure. Herein, a lanthanide luminescent metal of framework (Ln-MOF) was employed to construct fluorescent molecular imprinted polymer probe for the detection of pyrethroids metabolite, 3-phenoxybenzaldehyde (3-PBALD). Through a typical sol-gel imprinting process, the imprinted layer capped Ln-MOFs exhibited specific fluorescence quenching at 615 nm upon adding 3-PBALD. Under the optimum condition, a linear relationship was obtained in the range from 0.01 to 5 & mu;g mL-1 and the limit of detection was 8 ng mL-1, which is superior to bare Ln-MOFs. In addition, the obtained probe showed good stability and repeatability as well as anti-interference. Furthermore, coupling with esterase hydrolysis strategy, the proposed fluorescent probe can be extended for the determination of various synthetic pyrethroids. In spiked apple and spinach samples, the recoveries ranged from 80.2% -116.7% and 80.8% -113.2%, respectively. Therefore, this fluorescent molecular imprinted polymer probe has potential for a broad-spectrum pyrethroids residue screening.
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