Determination of UV-filter residues in bathing waters by liquid chromatography UV-diode array and gas chromatography mass spectrometry after micelle mediated extraction-solvent back extraction

dc.contributor.authorGiokas, D. L.en
dc.contributor.authorSakkas, V. A.en
dc.contributor.authorAlbanis, T. A.en
dc.contributor.authorLampropoulou, D. A.en
dc.date.accessioned2015-11-24T16:55:50Z
dc.date.available2015-11-24T16:55:50Z
dc.identifier.issn0021-9673-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/10362
dc.rightsDefault Licence-
dc.subjectsunscreen agentsen
dc.subjectliquid chromatographyen
dc.subjectgas chromatographyen
dc.subjectcloud point extractionen
dc.subjectbathing watersen
dc.subjectcloud point extractionen
dc.subjectp-aminobenzoic aciden
dc.subjectsurface watersen
dc.subjectswimming poolen
dc.subjectcare productsen
dc.subjectpreconcentrationen
dc.subjectsunscreenen
dc.subjectagentsen
dc.titleDetermination of UV-filter residues in bathing waters by liquid chromatography UV-diode array and gas chromatography mass spectrometry after micelle mediated extraction-solvent back extractionen
heal.abstractA preconcentration methodology utilizing the cloud point phenomenon is described in this study for the determination of sunscreen agent residues in bathing waters by reversed phase liquid chromatography with UV detection and gas chromatography (GC) with mass spectrometric (MS) detection. The method employs the entrapment of the analytes in the micelles of the non-ionic surfactant TX-114, upon increase of the solution temperature to 60 degrees C. The analytes are either re-extracted or back extracted from the final micellar extract into appropriate organic solvents, a procedure that facilitates the direct application of the method not only with liquid chromatography but mostly importantly with gas chromatographic analysis. Ultrasonication was employed to assist the procedure and accelerate the extraction of the analytes into the solvent phase. Under the optimum experimental conditions, the method affords satisfactory recoveries in the range of 95-102% and relative standard deviation lower than 6% without interference from the presence of the surfactant. The method was successfully applied to the determination of UV filters in natural waters. (c) 2005 Elsevier B.V. All rights reserved.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1016/j.chroma.2005.04.074-
heal.identifier.secondary<Go to ISI>://000229663400002-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0021967305008642/1-s2.0-S0021967305008642-main.pdf?_tid=0bdc8a54-349d-11e3-a092-00000aacb35d&acdnat=1381733666_aabc39ed7b6be37af7abf1faed648fdd-
heal.journalNameJournal of Chromatography Aen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2005-
heal.publisherElsevieren
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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