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Application of magnetic molecularly imprinted polymers for extraction of imidacloprid from eggplant and honey

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Title Application of magnetic molecularly imprinted polymers for extraction of imidacloprid from eggplant and honey
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Creator Kumar, N.
Narayanan, N.
Gupta, S.
 
Subject Magnetic molecularly imprinted polymer (MMIP), Imidacloprid, Liquid chromatography mass spectrometry (LC-MS/MS), Honey, Eggplant
 
Description Not Available
A magnetic molecularly imprinted polymer (MMIP) adsorbent for imidacloprid was prepared using non-covalentapproach with functionalized nano Fe3O4particles (magnetic cores), imidacloprid (template), acrylic acid(functional monomer), ethylene glycol dimethacrylate (cross linker) and azobisisobutyronitrile (initiator) andused for selective separation of imidacloprid from honey and vegetable samples. The polymers were char-acterized using FT-IR spectroscopy, SEM and TEM images. For analysis of imidacloprid LC-MS/MS equipmentwas used. Adsorption kinetics was best explained by pseudo-second-order kinetic model. Adsorption datafittedwell into linearized Freundlich equation (R2> 0.98). Scatchard plot analysis indicates the presence of twoclasses of binding sites in the MMIPs with the Cmaxof 1889.6 μg g−1and 65448.9 μg g−1, respectively. MMIPsdemonstrated much higher affinity for imidacloprid over structurally similar analogues acetamiprid (α= 23.59)and thiamethoxam (α= 17.15). About 87.1 ± 5.0% and 90.6 ± 5.6% of the added imidacloprid was re-covered from MMIPs in case of fortified eggplant and honey samples, respectively.
ICAR
 
Date 2021-06-28T09:25:14Z
2021-06-28T09:25:14Z
2018-02-12
 
Type Article
 
Identifier Kumar, N., Narayanan, N., & Gupta, S. (2018). Application of magnetic molecularly imprinted polymers for extraction of imidacloprid from eggplant and honey. Food chemistry, 255, 81-88.
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http://krishi.icar.gov.in/jspui/handle/123456789/47458
 
Language English
 
Relation Not Available;
 
Publisher Elsevier