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
Not Available |
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Creator |
Kumar, N.
Narayanan, N. Gupta, S. |
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Subject |
Magnetic molecularly imprinted polymer (MMIP), Imidacloprid, Liquid chromatography mass spectrometry (LC-MS/MS), Honey, Eggplant
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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 |
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Date |
2021-06-28T09:25:14Z
2021-06-28T09:25:14Z 2018-02-12 |
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Type |
Article
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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.
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/47458 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Elsevier
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