Development of a pH sensing membrane electrode based on a new calix[4]arene derivative

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dc.contributor.authorErturun, H. Elif Kormali
dc.contributor.authorÖzel, Ayça Demirel
dc.contributor.authorSayın, Serkan
dc.contributor.authorYılmaz, Mustafa
dc.contributor.authorKılıç, Esma
dc.date.accessioned2020-03-26T19:01:49Z
dc.date.available2020-03-26T19:01:49Z
dc.date.issued2015
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractA new pH sensing poly(vinyl chloride) (PVC) membrane electrode was developed by using recently synthesized 5,17-bis(4-benzylpiperidine-1-yl)methyl-25.26,27,28-tetrahydroxy calix[4]arene as an ionophore. The effects of membrane composition, inner filling solution and conditioning solution on the potential response of the proposed pH sensing membrane electrode were investigated. An optimum membrane composition of 3% ionophore, 67% o-nitrophenyl octyl ether (o-NPOE) as plasticizer, 30% PVC was found. The electrode exhibited a near-Nernstian slope of 58.7 +/- 1.1 mV pH(-1) in the pH range 1.9-12.7 at 20 +/- 1 degrees C. It showed good selectivity for H+ ions in the presence of some cations and anions and a longer lifetime of at least 12 months when compared with the other PVC membrane pH electrodes reported in the literature. Having a wide working pH range, it was not only applied as a potentiometric indicator electrode in various acid-base titrations, but also successfully employed in different real samples. It has good reproducibility and repeatability with a response time of 6-7 s. Compared to traditional glass pH electrode, it exhibited excellent potentiometric response after being used in fluoride-containing media. (C) 2014 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipAnkara University Research FundAnkara University [10B4240003]en_US
dc.description.sponsorshipWe gratefully acknowledge the financial support of Ankara University Research Fund (Grant no: 10B4240003).en_US
dc.identifier.doi10.1016/j.talanta.2014.10.032en_US
dc.identifier.endpage675en_US
dc.identifier.issn0039-9140en_US
dc.identifier.issn1873-3573en_US
dc.identifier.pmid25476362en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage669en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.talanta.2014.10.032
dc.identifier.urihttps://hdl.handle.net/20.500.12395/32000
dc.identifier.volume132en_US
dc.identifier.wosWOS:000349278900092en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofTALANTAen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCalix[4]areneen_US
dc.subjectpH sensing PVC membrane electrodeen_US
dc.subjectPotentiometryen_US
dc.subjectpH measurementen_US
dc.subjectTitratable acidityen_US
dc.titleDevelopment of a pH sensing membrane electrode based on a new calix[4]arene derivativeen_US
dc.typeArticleen_US

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