Highly sensitive determination of gallic acid on poly (L-Methionine)-carbon nanotube composite electrode

dc.contributor.authorKocak, Cagri Ceylan
dc.contributor.authorKarabiberoglu, Sukriye Ulubay
dc.contributor.authorDursun, Zekerya
dc.date.accessioned2020-12-01T12:06:21Z
dc.date.available2020-12-01T12:06:21Z
dc.date.issued2019
dc.departmentEge Üniversitesien_US
dc.description.abstractIn this work, composite electrode was prepared with poly L-methionine and carbon nanotube (PLM/MWCNT) onto glassy carbon electrode. the composite electrode surface morphology and electrical properties were characterized by scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). Electrochemical response of Gallic acid (GA) on PLM/MWCNT/GCE was studied by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and amperometry. the results demonstrated that PLM/MWCNT/GCE exhibit a favorable application for the determination of GA in pH 2.2 Britton-Robinson buffer solution. the prepared composite electrode offered two linear segments for GA in DPV over the range of 4.0 nmoL L-1 -1.1 mu mol L-1 and 1.7 mu mol L-1 - 20.0 mu mol L-1 with a detection limit of 3.1 nmol L-1 (S/N = 3). the amperometric detection was also used for improving as lower detection limit compare with DPV. the detection limit was calculated from the amperometric studies found as 0.5 nmol L-1. Through the synergistic effect of PLM and MWCNT, the composite electrode exhibits good catalytic effect, selectivity, stability and reproducibility for GA. the proposed method was verified by successful determination of GA in green tea, black tea and wine samples.en_US
dc.identifier.doi10.1016/j.jelechem.2019.113552
dc.identifier.issn1572-6657
dc.identifier.issn1873-2569
dc.identifier.issn1572-6657en_US
dc.identifier.issn1873-2569en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1016/j.jelechem.2019.113552
dc.identifier.urihttps://hdl.handle.net/11454/63208
dc.identifier.volume853en_US
dc.identifier.wosWOS:000503910000014en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal of Electroanalytical Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGallic aciden_US
dc.subjectPoly(L-methionine)en_US
dc.subjectCarbon nanotubeen_US
dc.subjectComposite electrodeen_US
dc.titleHighly sensitive determination of gallic acid on poly (L-Methionine)-carbon nanotube composite electrodeen_US
dc.typeArticleen_US

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