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Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/9911
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dc.contributor.authorSakkas, V. A.en
dc.contributor.authorGiokas, D. L.en
dc.contributor.authorLambropoulou, D. A.en
dc.contributor.authorAlbanis, T. A.en
dc.date.accessioned2015-11-24T16:52:37Z-
dc.date.available2015-11-24T16:52:37Z-
dc.identifier.issn0021-9673-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/9911-
dc.rightsDefault Licence-
dc.subjectsunscreen agentsen
dc.subjectphotodegradationen
dc.subjectoctyl-dimethyl-p-aminobenzoic aciden
dc.subjectperformance liquid-chromatographyen
dc.subjectsolid-phase microextractionen
dc.subjectaquatic photodegradationen
dc.subjectphotochemical formationen
dc.subjecthuman urineen
dc.subjectuv filtersen
dc.subjectgasen
dc.subjectextractionen
dc.subjectidentificationen
dc.subjectkineticsen
dc.titleAqueous photolysis of the sunscreen agent octyl-dimethyl-p-aminobenzoic acid - Formation of disinfection byproducts in chlorinated swimming pool wateren
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1016/S0021-9673(03)01331-1-
heal.identifier.secondary<Go to ISI>://000185689900007-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0021967303013311/1-s2.0-S0021967303013311-main.pdf?_tid=eeed4e9c-349c-11e3-9d14-00000aacb361&acdnat=1381733618_f45c2cead91993cae7d23b2cdfc993fc-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.publicationDate2003-
heal.abstractThe photochemical behavior of the sunscreen agent octyl-dimethyl-p-aminobenzoic acid (ODPABA) was studied in different aqueous solutions and under different conditions. ODPABA photolysis was performed under laboratory conditions using a xenon light source and under natural sunlight conditions in sea, swimming pool as well as in distilled water. The influence of dissolved organic matter (DOM) on the degradation kinetics was also studied in the presence of various concentrations of humic acids (HA). The phototransformation was shown to proceed via pseudo-first-order reaction in all cases and the reaction rates followed the order: distilled water > swimming pool water > seawater, depending mainly on the presence of dissolved organic matter that retarded the photolysis reaction. Kinetic experiments were monitored with HPLC/UV-DAD and the half-lives (t(1/2)) varied between 1.6 and 39 h in simulated solar irradiation and between 27 and 39 h in natural sunlight conditions. The product distribution during illumination was strongly dependent on the constitution of the irradiated media. Irradiation of the aqueous ODPABA solutions gave rise to several transformation products that were isolated by means of solid-phase extraction (SPE) and identified using GC-MS techniques. These were formed mainly through dealkylation and hydroxylation reactions and were detected in all aqueous solutions investigated. In the case of swimming pool water some additional byproducts were isolated and were tentatively identified as chlorinated intermediates, formed by the subsequent chlorination of the parent molecule as well as other intermediates. (C) 2003 Elsevier B.V. All rights reserved.en
heal.publisherElsevieren
heal.journalNameJournal of Chromatography Aen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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