期刊
FOOD CHEMISTRY
卷 383, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2022.132599
关键词
Magnetic porous organic polymer; Rutin; Neonicotinoid insecticides; Magnetic solid phase extraction; High performance liquid chromatography
资金
- National Natural Science Foundation ofChina [32072295, 31671930, 31571925, 31471643]
- Natural Sci-ence Foundation of Hebei Province [B2020204001, C2020204020, C2020204136, B2021204006]
- Scientific and Technological Research Foundation of the Department of Education of Hebei Province [ZD2021060, ZD2020196, QN2019034]
- Food Processing Discipline Group of Hebei Agricultural University [2020-10]
A hydroxyl-functional magnetic porous organic polymer (Rut-MOP) was synthesized using natural rutin as a green monomer, and it exhibited high extraction capability for neonicotinoid insecticides. This Rut-MOP based method combined with high performance liquid chromatography was successfully applied for the sensitive determination of neonicotinoids in lemon juice and honey samples.
Natural rutin with abundant hydroxyl groups was used as a green monomer to synthesize hydroxyl-functional magnetic porous organic polymer (named Rut-MOP) through environmentally-benign diazo-coupling reaction for the first time. The Rut-MOP displayed high extraction capability for neonicotinoid insecticides (thiamethoxam, imidacloprid, acetamiprid and thiacloprid). Thus, a Rut-MOP based magnetic solid-phase extraction method combined with high performance liquid chromatography was established for sensitive determination of neonicotinoid insecticides in lemon juice and honey samples. Under optimized conditions, the linear response of neonicotinoids was 0.1-100.0 ng mL(-1) for lemon juice and 8.0-1000.0 ng g(-1) for honey. The limits of detection (S/N = 3) were 0.03-0.04 ng mL(-1) and 2.5-3.0 ng g(-1) for lemon juice and honey, respectively. The method recoveries were 82-118% with the relative standard deviations of 1.9-7.6%. The results demonstrate that the Rut-MOP based method can be served as a good alternative for the sensitive analysis of neonicotinoid insecticides in lemon juice and honey.
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