Magnetic molecularly imprinted polymer nanoparticles for the extraction and clean-up of thiamethoxam and thiacloprid in light and dark honey

Abdulhussein, Ahmed Qasim and Jamil, Arniza Khairani Mohd and Bakar, Nor Kartini Abu (2021) Magnetic molecularly imprinted polymer nanoparticles for the extraction and clean-up of thiamethoxam and thiacloprid in light and dark honey. Food Chemistry, 359. p. 129936. ISSN 0308-8146

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Official URL: https://doi.org/10.1016/j.foodchem.2021.129936

Abstract

In this work, new selective and sensitive dual-template molecularly imprinted polymer nanoparticles (MIPs) were synthesized and characterized. Sorbent MIPs were investigated for simultaneous extraction and clean-up of thiamethoxam and thiacloprid from light and dark honey samples. In this study, ultra-high-performance liquid chromatography–tandem mass spectrometry triple-quadrupole (UHPLC-MS/MS) (QQQ) was used to detect and quantify the pesticides. The kinetic model with adsorption kinetics of sorbent was investigated. The optimal adsorption conditions were 80 mg of polymer MIPs, a 30-min extraction time, and a pH of 7. The detection limit (LOD) and the quantification limit (LOQ) varied from 0.045 to 0.070 µg kg−1 and from 0.07 to 0.10 µg kg−1, respectively. The intra-day and inter-day precision (RSD, %) ranged from 1.3 to 2.0% and from 8.2 to 12.0%, respectively. The recovery of thiamethoxam and thiacloprid ranged from 96.8 to 106.5% and 95.3 to 104.4%, respectively, in light and dark honey samples. © 2021 Elsevier Ltd

Item Type: Article
Uncontrolled Keywords: Neonicotinoid pesticides; molecular imprinting polymer (MIPs); Thiamethoxam; Thiacloprid; UHPLC–MS/MS (QQQ), honey
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 May 2021 04:21
Last Modified: 25 May 2021 04:21
URI: http://eprints.um.edu.my/id/eprint/25981

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