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Reference type: Journal
Authors: Cervini P, Cavalheiro ETG
Article Title: Evaluation of the Analytical Potentialities of a Composite Electrode Modified with Molecularly Imprinted Polymers.
Publication date: 2009
Journal: Analytical Letters
Volume: 42
Issue: (13)
Page numbers: 1940-1957.
DOI: 10.1080/00032710903082556
Alternative URL: http://www.informaworld.com/10.1080/00032710903082556

Abstract: The preparation of a methacrylate polymer molecularly imprinted (MIP) with paracetamol (APAP) was performed. After extraction of the APAP template molecule, the MIPs were incorporated into a graphite-polyurethane (GPU) matrix, and the resulting composites were used to prepare modified electrodes intended to be used in APAP determination. The best results were found using a 2.5% MIP in the GPU electrode and a 500 μm MIP particle size. This electrode was used in the determination of APAP in pharmaceutical formulations, reaching a 6.7 x 10-8 mol L-1 limit of detection. The 2.5% MIP-GPU-modified electrode showed better sensitivity than the nonimprinted methacrylate GPU-modified electrodes. Interference of phenacetin in the APAP response decreased remarkably when the proposed electrode was used
Template and target information: paracetamol, APAP, acetominophen
Author keywords: DPV, graphite-polyurethane composite electrode, MIP, paracetamol


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