Flow Injection Analysis of Sulfide at a Calmagite-Modified Pencil Graphite Electrode

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dc.authoridDilgin, Yusuf/0000-0002-2980-6871
dc.contributor.authorEmir, Gamze
dc.contributor.authorDilgin, Yusuf
dc.date.accessioned2025-01-27T20:32:05Z
dc.date.available2025-01-27T20:32:05Z
dc.date.issued2018
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, a new approach is proposed for low cost, sensitive, rapid, and selective detection of sulfide based on its electrocatalytic oxidation at a calmagite-modified pencil graphite electrode. The calmagite-modified pencil graphite electrode was prepared through electropolymerization in which five successive cyclic voltammograms of 0.10 mM monomer on a pencil graphite electrode were recorded in pH 2.0 Britton-Robinson buffer containing 0.10M NaNO3. Cyclic voltammograms of the prepared polycalmagite-modified pencil graphite electrode show that the peak potential of sulfide shifted from +420 mV at an unmodified pencil graphite electrode to +250 mV at the proposed electrode. The results show that a polycalmagite-modified pencil graphite electrode exhibits good electrocatalytic response to the oxidation of sulfide. Flow injection analysis of the sulfide at the polycalmagite-modified pencil graphite electrode was performed under optimized conditions using a home-made electrochemical flow cell constructed specially for the pencil graphite electrode. The anodic peak currents obtained from flow injection amperometric curves at +250 mV in pH 9.0 Britton-Robinson buffer containing 1.0M KCl show that the polycalmagite-modified pencil graphite electrode gave a linear range of 0.10-500.0 mu M and a detection limit of 0.03 mu M. The modified electrode was successfully applied to determine sulfide in real samples, and the method was also verified with recovery studies.
dc.description.sponsorshipTurkiye Bilimsel ve Teknolojik Arastirma Kurumu [115Z235]
dc.description.sponsorshipThis work was supported by the Turkiye Bilimsel ve Teknolojik Arastirma Kurumu [Grant Number 115Z235].
dc.identifier.doi10.1080/00032719.2017.1317782
dc.identifier.endpage150
dc.identifier.issn0003-2719
dc.identifier.issn1532-236X
dc.identifier.issue1-2
dc.identifier.scopus2-s2.0-85032222401
dc.identifier.scopusqualityQ2
dc.identifier.startpage133
dc.identifier.urihttps://doi.org/10.1080/00032719.2017.1317782
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23348
dc.identifier.volume51
dc.identifier.wosWOS:000416519900011
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.ispartofAnalytical Letters
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectCalmagite
dc.subjectelectrocatalytic oxidation
dc.subjectflow injection analysis
dc.subjectpencil graphite electrode
dc.subjectsulfide
dc.titleFlow Injection Analysis of Sulfide at a Calmagite-Modified Pencil Graphite Electrode
dc.typeArticle

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