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dc.contributor.authorEfstathiou, Mariaen
dc.contributor.authorAristarchou, T.en
dc.contributor.authorKiliari, T.en
dc.contributor.authorDemetriou, Antrien
dc.contributor.authorPashalidis, Ioannisen
dc.creatorEfstathiou, Mariaen
dc.creatorAristarchou, T.en
dc.creatorKiliari, T.en
dc.creatorDemetriou, Antrien
dc.creatorPashalidis, Ioannisen
dc.date.accessioned2019-11-21T06:18:55Z
dc.date.available2019-11-21T06:18:55Z
dc.date.issued2014
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/55455
dc.description.abstractThe seasonal changes in the concentration of uranium in an unconfined groundwater system in Cyprus have been investigated and compared to corresponding changes of boron and salinity, to better understand the chemical behavior of uranium in the respective system. Uranium concentration measurements were performed by alpha spectroscopy after selective pre-concentration, whereas boron concentration analysis and electrical conductivity measurements were carried out by photometry using azomethine-H and an electrical conductivity electrode, respectively. The experimental data show that seasonal variations are mainly related to rainwater infiltration and the specific chemical behavior of a species. Increased levels of uranium and boron in natural water systems are attributed to the increased stability of the uranium(VI)-carbonato complexes and the boric acid, which are in natural waters the predominant chemical species for uranium and boron, respectively. Dilution/dissolution processes govern the seasonal concentration changes of uranium and boron in a groundwater system, however redox-reactions resulting in the reduction of U(VI) to U(IV) affect significantly the concentration of uranium in the respective system, particularly under suboxic conditions. © 2013 Akadémiai Kiadó, Budapest, Hungary.en
dc.sourceJournal of Radioanalytical and Nuclear Chemistryen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84892684543&doi=10.1007%2fs10967-013-2787-1&partnerID=40&md5=ee11d60fef3be294ece15a720903df6d
dc.subjectCyprusen
dc.subjectBoronen
dc.subjectsalinityen
dc.subjectarticleen
dc.subjectKineticsen
dc.subjectoxidation reduction reactionen
dc.subjectelectric conductivityen
dc.subjectconcentration (parameters)en
dc.subjectspectroscopyen
dc.subjectUraniumen
dc.subjectRedox reactionsen
dc.subjectGroundwateren
dc.subjectdissolutionen
dc.subjectground wateren
dc.subjectdilutionen
dc.subjectchemical reaction kineticsen
dc.subjectgeochemical analysisen
dc.subjectphotometryen
dc.subjectrainen
dc.subjectSeasonal variationen
dc.titleSeasonal variation, chemical behavior and kinetics of uranium in an unconfined groundwater systemen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1007/s10967-013-2787-1
dc.description.volume299
dc.description.issue1
dc.description.startingpage171
dc.description.endingpage175
dc.author.faculty002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Χημείας / Department of Chemistry
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :1</p>en
dc.source.abbreviationJ.Radioanal.Nucl.Chem.en
dc.contributor.orcidPashalidis, Ioannis [0000-0002-7587-6395]
dc.gnosis.orcid0000-0002-7587-6395


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