A novel impedimetric sensor based on molecularly imprinted polypyrrole modified pencil graphite electrode for trace level determination of chlorpyrifos

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dc.authoridDilgin, Yusuf/0000-0002-2980-6871
dc.authoridUygun, Zihni Onur/0000-0001-9045-7271
dc.contributor.authorUygun, Zihni Onur
dc.contributor.authorDilgin, Yusuf
dc.date.accessioned2025-01-27T20:27:21Z
dc.date.available2025-01-27T20:27:21Z
dc.date.issued2013
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA chlorpyrifos (CPF) templated molecularly imprinted film was electrochemically synthesized on a pencil graphite electrode (PGE) by electropolymerization of pyrrole (Py) in the presence of CPF. The fabricated modified electrode was used as a novel impedimetric sensor for the determination of an important organophosphorus pesticide, CPF. The binding performance of CPF toward the polypyrrole (PPy) film was examined using electrochemical impedance spectroscopy (EIS). The surface morphology of the imprinted film was characterized by scanning electron microscopy (SEM). Results obtained from the impedance measurements show that imprinted PPy modified PGE offers a disposable, low cost, selective and sensitive electrochemical sensor for the determination of CPF. Under experimental conditions, the proposed impedimetric sensor has a linear response range from 20 to 300 mu g L-1 CPF with a detection limit of 4.5 mu g L-1 (based on 3(sb)). Furthermore, the fabricated sensor was successfully applied to determine CPF in CPF-added artificial samples. (C) 2013 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.snb.2013.06.075
dc.identifier.endpage84
dc.identifier.issn0925-4005
dc.identifier.scopus2-s2.0-84881347397
dc.identifier.scopusqualityQ1
dc.identifier.startpage78
dc.identifier.urihttps://doi.org/10.1016/j.snb.2013.06.075
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22665
dc.identifier.volume188
dc.identifier.wosWOS:000326345600011
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofSensors and Actuators B-Chemical
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectImpedimetric sensor
dc.subjectPencil graphite electrode
dc.subjectMolecular imprinting
dc.subjectOrganophosphate
dc.subjectChlorpyrifos
dc.titleA novel impedimetric sensor based on molecularly imprinted polypyrrole modified pencil graphite electrode for trace level determination of chlorpyrifos
dc.typeArticle

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