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A Highly Sensitive Potentiometric Amphetamine Microsensor Based on All-Solid-State Membrane Using a New Ion-Par Complex, [3,3′-Co(1,2-closo-C2B9H11)2]− C9H13NH+

AuthorsGallardo-González, J.; Baraket, Abdellatif; Boudjaoui, S.; Clément, Y.; Alcácer, A.; Streklas, A.; Teixidor, Francesc ; Zine, N.; Bausells, Joan ; Errachid, Abdelhamid
Issue Date7-Aug-2017
PublisherMultidisciplinary Digital Publishing Institute
CitationProceedings 1 (4): 481 (2017)
AbstractIn the present work a highly sensitive ion-selective microelectrode for the detection of amphetamine is presented. For this purpose, a novel ion-par complex based on the metallocarborane, cobalt bis(dicarbollide) anion ([3,3′-Co(1,2-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)<sub>2</sub>]<sup>−</sup>) coupled to amphetamonium cation has been prepared as the active site for amphetamine recognition. The prepared ion-par complex was incorporated to a PVC-type sensitive membrane. It was then drop-casted on the top of a gold microelectrode previously modified with a solid contact layer of polypyrrole. This novel amphetamine microsensor has provided excellent and quick response within the range 10<sup>−5</sup> M to 10<sup>−3</sup> M of amphetamine concentration, a limit of detection of 12 µM and a slope of 60.1 mV/decade. It was also found to be highly selective toward some potential interference compounds when compared to amphetamine.
Publisher version (URL)http://dx.doi.org/10.3390/proceedings1040481
Identifiersdoi: 10.3390/proceedings1040481
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