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Reference type: Journal
Authors: Ameli A, Alizadeh N
Article Title: Nanostructured conducting molecularly imprinted polymer for selective extraction of salicylate from urine and serum samples by electrochemically controlled solid-phase micro-extraction.
Publication date: 2011
Journal: Analytica Chimica Acta
Volume: 707
Issue: (1-2)
Page numbers: 62-68.
DOI: 10.1016/j.aca.2011.09.005
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0003267011012165

Abstract: Overoxidized polypyrrole (OPPy) films templated with salicylate (SA) have been utilized as conducting molecular imprinted polymers (CMIPs) for potential-induced selective solid-phase micro-extraction processes. Various important fabrication factors for controlling the performance of the OPPy films have been investigated using fluorescence spectrometry. Several key parameters such as applied potential for uptake, release, pH of uptake and release solution were varied to achieve the optimum micro-extraction procedure. The film template with SA exhibited excellent selectivity over some interference. The calibration graphs were linear in the ranges of 5 x 10-8 to 5 x 10-4 and 1.2 x 10-6 to 5 x 10-4 mol mL-1 and the detection limit was 4 x 10-8 mol L-1. The OPPy film as the solid-phase micro-extraction absorbent has been applied for the selective clean-up and quantification of trace amounts of SA from physiological samples. The results of scanning electron microscopy (SEM) have confirmed the nano-structure morphologies of the films
Template and target information: salicylate, SA
Author keywords: polypyrrole, conducting polymer, molecularly imprinted polymer, salicylic acid, Solid-phase micro-extraction, fluorescence


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