Flow injection amperometric determination of hydrazine based on its electrocatalytic oxidation at pyrocatechol violet modified pencil graphite electrode

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dc.authoridDilgin, Yusuf/0000-0002-2980-6871
dc.contributor.authorAyaz, Selen
dc.contributor.authorDilgin, Yusuf
dc.date.accessioned2025-01-27T20:32:06Z
dc.date.available2025-01-27T20:32:06Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA disposable, low cost, commercial available electrode, Pencil graphite electrode (PGE), was modified with pyrocatechol violet (Pcv) for electrocatalytic oxidation of hydrazine. To prepare modified electrode, pencil leads were immersed into 0.01 M Pcv solution for 10 min at room temperature. Cyclic voltammetric experiments show that a broadened and highly irreversible peak attributed to oxidation of N2H4 was observed at 600 mV at the bare PGE, while a well-defined irreversible oxidation peak was observed at 100 mV at the Pcv/PGE. A shift in the overpotential to more negative direction (about 500 mV) and an enhancement in the peak current indicate that the Pcv/PGE presents an efficient electrocatalytic activity toward oxidation of hydrazine. Then, flow injection analysis (FIA) of N2H4 was performed based on its electrocatalytic oxidation at the Pcv/PGE. The recorded amperometric current-time curves in FIA under optimized conditions showed a linear dependence on the N2H4 concentration between 2.5 x 10(-4) mM and 0.50 mM with a detection limit of 0.08 mu M. This proposed modified electrode exhibits a simple, disposable, low cost, rapid and sensitive determination of hydrazine. (c) 2017 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [115Z235]
dc.description.sponsorshipWe thank the Scientific and Technological Research Council of Turkey (TUBITAK) for financial support (Project number: 115Z235). This study was conducted as part of a project and Msc thesis of Selen Ayaz.
dc.identifier.doi10.1016/j.electacta.2017.11.162
dc.identifier.endpage1095
dc.identifier.issn0013-4686
dc.identifier.issn1873-3859
dc.identifier.scopus2-s2.0-85035081969
dc.identifier.scopusqualityQ1
dc.identifier.startpage1086
dc.identifier.urihttps://doi.org/10.1016/j.electacta.2017.11.162
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23351
dc.identifier.volume258
dc.identifier.wosWOS:000418324800123
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofElectrochimica Acta
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPencil graphite electrode
dc.subjectModified electrode
dc.subjectHydrazine
dc.subjectAmperometry
dc.subjectPyrocatechol violet
dc.subjectFlow injection analysis
dc.titleFlow injection amperometric determination of hydrazine based on its electrocatalytic oxidation at pyrocatechol violet modified pencil graphite electrode
dc.typeArticle

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