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Reference type: Journal
Authors: Cacho C, Turiel E, Pérez-Conde C
Article Title: Molecularly imprinted polymers: An analytical tool for the determination of benzimidazole compounds in water samples.
Publication date: 2009
Journal: Talanta
Volume: 78
Issue: (3)
Page numbers: 1029-1035.
DOI: 10.1016/j.talanta.2009.01.007
Alternative URL: http://www.sciencedirect.com/science/article/B6THP-4VDS888-8/2/847417a55c3eb07243f98ea590046f02

Abstract: Molecularly imprinted polymers (MIPs) for benzimidazole compounds have been synthesized by precipitation polymerization using thiabendazole (TBZ) as template, methacrylic acid as functional monomer, ethyleneglycol dimethacrylate (EDMA) and divinylbenzene (DVB) as cross-linkers and a mixture of acetonitrile and toluene as porogen. The experiments carried out by molecularly imprinted solid phase extraction (MISPE) in cartridges demonstrated the imprint effect in both imprinted polymers. MIP-DVB enabled a much higher breakthrough volume than MIP-EDMA, and thus was selected for further experiments. The ability of this MIP for the selective recognition of other benzimidazole compounds (albendazole, benomyl, carbendazim, fenbendazole, flubendazole and fuberidazole) was evaluated. The obtained results revealed the high selectivity of the imprinted polymer towards all the selected benzimidazole compounds. An off-line analytical methodology based on a MISPE procedure has been developed for the determination of benzimidazole compounds in tap, river and well water samples at concentration levels below the legislated maximum concentration levels (MCLs) with quantitative recoveries. Additionally, an on-line preconcentration procedure based on the use of a molecularly imprinted polymer as selective stationary phase in HPLC is proposed as a fast screening method for the evaluation of the presence of benzimidazole compounds in water samples
Template and target information: benzimidazole compounds, thiabendazole, TBZ, albendazole, benomyl, carbendazim, fenbendazole, flubendazole, fuberidazole
Author keywords: Molecularly imprinted polymers, Benzimidazole compounds, water samples, Multiresidual determination, solid phase extraction


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