Highly sensitive voltammetric determination of the fungicide fenhexamid using a cost-effective and disposable pencil graphite electrode

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dc.contributor.authorErsan, Teslime
dc.contributor.authorDilgin, Didem Giray
dc.contributor.authorOral, Ayhan
dc.contributor.authorSkrzypek, Slawomira
dc.contributor.authorBrycht, Mariola
dc.contributor.authorDilgin, Yusuf
dc.date.accessioned2025-01-27T20:55:44Z
dc.date.available2025-01-27T20:55:44Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA differential pulse voltammetric (DPV) method is proposed for the highly sensitive determination of fenhexamid (FHX) based on both electrooxidation and electroreduction processes using a disposable and cost-effective pencil graphite electrode (PGE). The electrochemical oxidation and reduction mechanisms of FHX at the PGE were elucidated by recording cyclic voltammograms at various pH values of Britton-Robinson buffer (BRB) solutions at a scan rate of 50 mV s-1 and different scan rate values in the range 10-400 mV s-1 at selected pH of BRB (pH 2.0). Differential pulse voltammograms recorded under optimized conditions revealed an oxidation peak of FHX around + 0.65 V and a reduction peak of FHX around + 0.45 V. The DPV analysis of FHX revealed two linear ranges: 0.001-0.01 mu mol L-1 and 0.01-5.0 mu mol L-1 for the anodic peak, and 0.001-0.1 mu mol L-1 and 0.1-5.0 mu mol L-1 for the cathodic peak. The limits of detection were 0.34 nmol L-1 and 0.32 nmol L-1 for the anodic and cathodic peaks, respectively. The proposed methodology demonstrated satisfactory selectivity, as selected pesticides, certain electroactive compounds, and cationic species tested did not interfere with the voltammetric determination of FHX, particularly during its reduction. The recovery results, showing values close to 100% obtained from the analysis of real samples spiked with FHX, indicated that this methodology can accurately determine FHX in water and soil samples.
dc.identifier.doi10.1007/s00604-024-06804-4
dc.identifier.issn0026-3672
dc.identifier.issn1436-5073
dc.identifier.issue12
dc.identifier.pmid39612027
dc.identifier.scopus2-s2.0-85211151699
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s00604-024-06804-4
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26152
dc.identifier.volume191
dc.identifier.wosWOS:001366857800002
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherSpringer Wien
dc.relation.ispartofMicrochimica Acta
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectPesticide detection
dc.subjectElectrochemical sensor
dc.subjectGraphite electrode
dc.subjectDifferential pulse voltammetry
dc.subjectElectroanalysis
dc.titleHighly sensitive voltammetric determination of the fungicide fenhexamid using a cost-effective and disposable pencil graphite electrode
dc.typeArticle

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