Zero-valent iron/iron oxide-oxyhydroxide/graphene as a magnetic sorbent for the enrichment of polychlorinated biphenyls, polyaromatic hydrocarbons and phthalates prior to gas chromatography-mass spectrometry

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dc.contributor.authorKaramani, A. A.en
dc.contributor.authorDouvalis, A. P.en
dc.contributor.authorStalikas, C. D.en
dc.date.accessioned2015-11-24T18:37:34Z
dc.date.available2015-11-24T18:37:34Z
dc.identifier.issn219673-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/17187
dc.rightsDefault Licence-
dc.subjectGas chromatographyen
dc.subjectMagnetic microextractionen
dc.subjectPAHsen
dc.subjectPCBsen
dc.subjectPhthalatesen
dc.subjectZero-valent iron/iron oxide-oxyhydroxide/grapheneen
dc.subjectMicroextractionen
dc.subjectZero-valent ironen
dc.subjectAdsorptionen
dc.subjectCarboxylic acidsen
dc.subjectDesorptionen
dc.subjectEstersen
dc.subjectGrapheneen
dc.subjectHydrocarbonsen
dc.subjectHydrophobicityen
dc.subjectIronen
dc.subjectIron oxidesen
dc.subjectMagnetic materialsen
dc.subjectMagnetic propertiesen
dc.subjectPolychlorinated biphenylsen
dc.subjectOrganic pollutantsen
dc.subjectferric hydroxideen
dc.subjecthumic aciden
dc.subjectiron oxideen
dc.subjectphthalic acid esteren
dc.subjectpolychlorinated biphenylen
dc.subjectpolycyclic aromatic hydrocarbonen
dc.subjectsorbenten
dc.subjectaccuracyen
dc.subjectadsorption kineticsen
dc.subjectarticleen
dc.subjectchemical compositionen
dc.subjectconcentration (parameters)en
dc.subjectcontrolled studyen
dc.subjectmagnetismen
dc.subjectmass fragmentographyen
dc.subjectpH measurementen
dc.subjectphysical chemistryen
dc.subjectpriority journalen
dc.subjectsolid phase microextractionen
dc.subjectstatic electricityen
dc.subjectsurface propertyen
dc.subjectwater samplingen
dc.subjectChemical Fractionationen
dc.subjectFerric Compoundsen
dc.subjectGas Chromatography-Mass Spectrometryen
dc.subjectGraphiteen
dc.subjectHydrogen-Ion Concentrationen
dc.subjectMagneticsen
dc.subjectPhthalic Acidsen
dc.subjectPolycyclic Hydrocarbons, Aromaticen
dc.subjectSodium Chlorideen
dc.titleZero-valent iron/iron oxide-oxyhydroxide/graphene as a magnetic sorbent for the enrichment of polychlorinated biphenyls, polyaromatic hydrocarbons and phthalates prior to gas chromatography-mass spectrometryen
heal.abstractA composite magnetic material consisting of zero-valent iron, iron oxide-oxyhydroxide and graphene was synthesized and used successfully as a sorbent for the micro solid-phase extraction of PAHs, PCBs and phthalic acid esters. The components endow the composite with multiple characteristics such as adsorption capability and facile removal due to its magnetic properties. Due to the π-π electrostatic stacking property of graphene, the high specific surface area and the adsorption capability of both components, the resulting black flaky Fe0/iron oxide-oxyhydroxide/graphene composite showed high extraction efficiency for the target analytes from water samples. Compared with the neat graphene, the composite material has improved properties in terms of microextraction capabilities as both the hydrophobic graphene and zero-valent iron participate in the adsorption of the hydrophobic molecules. The precision from the extraction of all three groups of compounds was lower than 7% and the recoveries were from 90 to 93% from a spiked lake water sample. The high recoveries in relation to the low final volume of the desorption solvent ensure high preconcentration efficiency and a promising sorbent for analytical applications. © 2012 Elsevier B.V.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primary10.1016/j.chroma.2012.11.018-
heal.identifier.secondaryhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84871369232&partnerID=40&md5=7da102ce369ba72b577ae8f22e1a1d2a-
heal.journalNameJournal of Chromatography Aen
heal.journalTypepeer reviewed-
heal.publicationDate2013-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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