Preconcentrative separation of chromium(III) species from chromium(VI) by cloud point extraction and determination by flame atomic absorption spectrometry

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dc.contributor.authorYildiz, Zeynep
dc.contributor.authorArslan, Gulsin
dc.contributor.authorTor, Ali
dc.date.accessioned2020-03-26T18:15:42Z
dc.date.available2020-03-26T18:15:42Z
dc.date.issued2011
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractWe describe a high-throughput technique for the determination of chromium species in water samples by flame atomic absorption spectrometry (FAAS) after preconcentrative separation of Cr(III) species from Cr(VI) by cloud point extraction (CPE) using diethyldithiocarbamate (DDTC) as the chelating agent and the nonionic surfactant Triton X-100 as the extractant. The Cr(III)-DDTC complex is extracted if the temperature is higher than the CPE temperature of Triton X-100, while Cr(VI) remains in the aqueous phase. The Cr(III) in the surfactant phase was analyzed by FAAS, and the concentration of Cr(VI) was calculated by subtraction of Cr(III) from total chromium which was directly determined by FAAS. The effect of pH, concentration of chelating agent, surfactant, and equilibration temperature were investigated. The detection limit for Cr(III) was 0.08 mu g L-1 with an enrichment factor of 98, and the relative standard deviation was 1.2% (n=3, c=100 mu g L-1). A certified reference material and several water samples were analyzed with satisfactory results.en_US
dc.description.sponsorshipSelcuk University Research Foundation (SUAF)Selcuk University [10201097]en_US
dc.description.sponsorshipThis work was financially supported by the Selcuk University Research Foundation (SUAF) (project number: 10201097).en_US
dc.identifier.doi10.1007/s00604-011-0646-8en_US
dc.identifier.endpage405en_US
dc.identifier.issn0026-3672en_US
dc.identifier.issn1436-5073en_US
dc.identifier.issue03.04.2020en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage399en_US
dc.identifier.urihttps://dx.doi.org/10.1007/s00604-011-0646-8
dc.identifier.urihttps://hdl.handle.net/20.500.12395/26735
dc.identifier.volume174en_US
dc.identifier.wosWOS:000293964400026en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSPRINGER WIENen_US
dc.relation.ispartofMICROCHIMICA ACTAen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCloud point extractionen_US
dc.subjectChromiumen_US
dc.subjectDiethyldithiocarbamateen_US
dc.subjectTriton X-100en_US
dc.subjectFlame atomic absorption spectrometryen_US
dc.titlePreconcentrative separation of chromium(III) species from chromium(VI) by cloud point extraction and determination by flame atomic absorption spectrometryen_US
dc.typeArticleen_US

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