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Reference type: Journal
Authors: Ben Messaoud N, Ait Lahcen A, Dridi C, Amine A
Article Title: Ultrasound assisted magnetic imprinted polymer combined sensor based on carbon black and gold nanoparticles for selective and sensitive electrochemical detection of Bisphenol A.
Publication date: 2018
Journal: Sensors and Actuators B: Chemical
Volume: 276
Page numbers: 304-312.
DOI: 10.1016/j.snb.2018.08.092
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0925400518315314

Abstract: Sample preparation is considered as one of the most interesting applications of magnetic molecularly imprinted polymer (MagMIP) used as adsorbents for various compounds prior to their determination using the developed analytical techniques. In this context, we present in this paper a developed Ultrasound-assisted magnetic molecularly imprinted polymer (US-MagMIP) combined to an electrochemical sensor modified with a nanocomposite of carbon black nanoparticles (CBNPs), and Gold nanoparticles (AuNPs) for highly selective and sensitive detection of Bisphenol A (BPA). The electrochemical characterization of the developed sensor was investigated by electrochemical impedance spectroscopy and cyclic voltammetry. Various parameters were optimized such as the effect of voltammetric mode, the effect of pH, the amount of US-MagMIP and the rebinding time. The electrochemical sensor exhibits a high sensitivity for BPA with a LOD of 8.8 nM with a wide linear range from 0.07 μM to 10 μM. Moreover, this sensor provides a high selectivity towards various likely interferents by combination with US-MagMIP prior to analysis. The developed analytical approach was applied successfully for determination of BPA in Tap and mineral water samples
Template and target information: bisphenol A BPA
Author keywords: bisphenol A, Electrochemical sensor, Ultrasound assisted magnetic molecularly imprinted polymer, gold nanoparticles, Carbon black nanoparticles


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