Simultaneous determination of Nickel(II), Copper(II), and Cobalt(II) in environmental samples at trace levels by reversed-phase high-performance liquid chromatography using shiff base complexes

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dc.contributor.authorKonanç, Mustafa Umut
dc.contributor.authorAsan, Adem
dc.date.accessioned2025-06-22T12:13:44Z
dc.date.available2025-06-22T12:13:44Z
dc.date.issued2025
dc.departmentAÇÜ, Artvin Meslek Yüksekokulu, Laboratuvar Teknolojisi Bölümü
dc.description.abstractAbstract: A new method for the simultaneous determination of Ni(II), Cu(II), and Co(II) ions in environmental samples by reversed-phase liquid chromatography was developed. The developed method is based on the synthesis of the quadrivalent Schiff base 6,6'-((1E,1'E)-(ethane-1,2-diylbis(azaneylylidene))bis(methaneylylidene))bis(3-methoxyphenol) by the condensation reaction between 2-hydroxy-4-methoxybenzaldehyde and ethylenediamine. The resulting Schiff base was used as a chelating agent to convert the targeted ions into metal-ligand complexes within 1 min, which were extracted on an octadecylsilane (ODS) solid-phase extraction mini-column and then injected into a reversed-phase high-performance liquid chromatography system. Sufficient separation of the metal-ligand complexes was achieved on a GL Sciences Intersil ODS-3 column with a mobile phase composition of methanol-acetonitrile-water (30 : 30 : 40, v/v) within 6 min and detection by an ultraviolet detector at 254 nm. The limits of detection were found to be 0.45, 0.40, and 1.47 µg/L for Co2+, Cu2+, and Ni2+, respectively. Recoveries from water samples ranged from 97.4 to 103.6%, with relative standard deviation values between 0.4 and 1.7%. While the targeted metal ions were not detected in a sample from the remote upstream area of the Kabaca Stream (Artvin, Turkey), concentrations were found to be 116.4 µg/L for Cu2+ and 32.9 µg/L for Ni2+ in a sample taken from the Kabaca Stream near the industrial area (Artvin, Turkey). Co2+ was below the limit of detection in both cases. In addition, the developed method was also validated using the inductively coupled plasma optical emission spectrometry technique.
dc.identifier.doi10.1134/S1061934825700303
dc.identifier.endpage902
dc.identifier.issn10619348
dc.identifier.issue5
dc.identifier.scopus2-s2.0-105008179475
dc.identifier.scopusqualityQ4
dc.identifier.startpage894
dc.identifier.urihttps://hdl.handle.net/11494/5571
dc.identifier.volume80
dc.identifier.wosWOS:001510028400003
dc.identifier.wosqualityQ4
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.institutionauthorKonanç, Mustafa Umut
dc.language.isoen
dc.publisherPleiades Publishing
dc.relation.ispartofJournal of Analytical Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectDiode array detector
dc.subjectHPLC
dc.subjectSchiff base
dc.subjectSPE
dc.subjectTrace elements
dc.titleSimultaneous determination of Nickel(II), Copper(II), and Cobalt(II) in environmental samples at trace levels by reversed-phase high-performance liquid chromatography using shiff base complexes
dc.typeArticle

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