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dc.creatorBen Issa, Nureddin
dc.creatorRajaković-Ognjanović, Vladana
dc.creatorMarinković, Aleksandar
dc.creatorRajaković, Ljubinka V.
dc.date.accessioned2019-04-19T14:16:24Z
dc.date.available2019-04-19T14:16:24Z
dc.date.issued2011
dc.identifier.issn0003-2670
dc.identifier.urihttp://grafar.grf.bg.ac.rs/handle/123456789/354
dc.description.abstractA simple and efficient method for separation and determination of inorganic arsenic (iAs) and organic arsenic (oAs) in drinking, natural and wastewater was developed. If arsenic is present in water prevailing forms are inorganic acids of As(III) and As(V). oAs can be found in traces as monomethylarsenic acid, MMA(V), and dimethylarsenic acid, DMAs(V). Three types of resins: a strong base anion exchange (SBAE) and two hybrid (HY) resins: HY-Fe and HY-AgCl, based on the activity of hydrated iron oxides and a silver chloride were investigated. It was found that the sorption processes (ion exchange, adsorption and chemisorptions) of arsenic species on SBAE (ion exchange) and HY resins depend on pH values of water. The quantitative separation of molecular and ionic forms of iAs and oAs was achieved by SBAE and pH adjustment, the molecular form of As(III) that exists in the water at pH lt 8.0 was not bonded with SBAE, which was convenient for direct determination of As(III) concentration in the effluent. HY-Fe resin retained all arsenic species except DMAs(V), which makes possible direct measurements of this specie in the effluent. HY-AgCl resin retained all iAs which was convenient for direct determination of oAs species concentration in the effluent. The selective bonding of arsenic species on three types of resins makes possible the development of the procedure for measuring and calculation of all arsenic species in water. In order to determine capacity of resins the preliminary investigations were performed in batch system and fixed bed flow system. Resin capacities were calculated according to breakthrough points in a fixed bed flow system which is the first step in designing of solid phase extraction (SPE) module for arsenic speciation separation and determination. Arsenic adsorption behavior in the presence of impurities showed tolerance with the respect to potential interference of anionic compounds commonly found in natural water. Proposed method was established performing standard procedures: with external standard, certified reference material and standard addition method. Two analytical techniques: the inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectroscopy-hydride generation (AAS-GH) were comparatively applied for the determination of arsenic in all arsenic species in water. ICP-MS detection limit was 0.2 mu g L(-1) and relative standard deviation (RSD) of all arsenic species investigated was between 3.5 and 5.1%.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43009/RS//
dc.rightsrestrictedAccess
dc.sourceAnalytica Chimica Acta
dc.subjectArsenic speciesen
dc.subjectHybrid resinen
dc.subjectIon-exchange resinen
dc.subjectSilver chlorideen
dc.subjectSeparationen
dc.subjectICP-MSen
dc.titleSeparation and determination of arsenic species in water by selective exchange and hybrid resinsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage198
dc.citation.issue1
dc.citation.other706(1): 191-198
dc.citation.rankaM21
dc.citation.spage191
dc.citation.volume706
dc.identifier.doi10.1016/j.aca.2011.08.015
dc.identifier.pmid21995928
dc.identifier.rcubconv_1562
dc.identifier.scopus2-s2.0-80053638382
dc.identifier.wos000296755300021
dc.type.versionpublishedVersion


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