MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: Díaz-Álvarez M, Turiel E, Martín-Esteban A
Article Title: Molecularly imprinted polymer monolith containing magnetic nanoparticles for the stir-bar sorptive extraction of thiabendazole and carbendazim from orange samples.
Publication date: 2019
Journal: Analytica Chimica Acta
Volume: 1045
Page numbers: 117-122.
DOI: 10.1016/j.aca.2018.09.001
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0003267018310596

Abstract: In this work, a novel molecularly imprinted stir-bar was developed for the stir-bar sorptive extraction (SBSE) of thiabendazole (TBZ) and carbendazim (CBZ) from orange samples. Magnetic nanoparticles were surface modified with oleic acid and then encapsulated by a silica shell using a conventional sol-gel procedure. Subsequently, nanoparticles were functionalized with methacrylate functionalities by grafting onto the particles surface. Finally, the modified magnetic nanoparticles were entrapped in a polymer monolith synthetized by copolymerization with the imprinting polymerization mixture using a glass vial insert as a mold. Variables affecting the polymerization and rebinding conditions of target analytes were optimized. The uptake capacity for the template (TBZ) was evaluated as well as the cross-reactivity for the related compound CBZ by rebinding experiments. Finally, the proposed magnetic imprinted monolith was applied to the SBSE of TBZ and CBZ from orange sample extracts providing a remarkable clean-up ability. The calculated detection limit were 0.13 and 0.10 mg kg-1 for CBZ and TBZ respectively, low enough to satisfactory analysis of both compounds in orange samples according to current European Union regulations
Template and target information: thiabendazole, TBZ, carbendazim, CBZ
Author keywords: molecular imprinting, monolith, magnetic nanoparticles, Stir-bar sorptive extraction, Thiabendazole, Carbendazim, Orange samples


  Shirt featuring the name Esther spelled out in symbols of the chemical elements  Science Teacher peptide mug  Perpetual student shirt

Molecules Special Issue call      Appeal for information






 

Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.


Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:



Mickey Mouse 90th Anniversary banner