On the re-assessment of the optimum conditions for the determination of platinum, palladium and rhodium in environmental samples by electrothermal atomic absorption spectrometry and microwave digestion

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dc.contributor.authorTsogas, G. Z.en
dc.contributor.authorGiokas, D. L.en
dc.contributor.authorVlessidis, A. G.en
dc.contributor.authorEvmiridis, N. P.en
dc.date.accessioned2015-11-24T16:43:18Z
dc.date.available2015-11-24T16:43:18Z
dc.identifier.issn0039-9140-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/8679
dc.rightsDefault Licence-
dc.subjectenvironmental samplesen
dc.subjectcertified materialsen
dc.subjectgfaasen
dc.subjectmicrowave extractionen
dc.subjectplatinum-group elementsen
dc.subjectplasma-mass spectrometryen
dc.subjectautomotive catalytic-convertersen
dc.subjectmetalfix-chelamine resinen
dc.subjectgroup elementsen
dc.subjectroad dusten
dc.subjecticp-msen
dc.subjectemission-spectrometryen
dc.subjectpreconcentration systemen
dc.subjectonline preconcentrationen
dc.subjectinterfering elementsen
dc.titleOn the re-assessment of the optimum conditions for the determination of platinum, palladium and rhodium in environmental samples by electrothermal atomic absorption spectrometry and microwave digestionen
heal.abstractThe experimental conditions for the determination of platinum, palladium and rhodium by graphite furnace atomic absorption spectrometry (GFAAS) are re-assessed. A certified material (BCR-723) was used as a working sample and analyzed using various extraction and atomization procedures in order to find the optimal experimental conditions that enable the quantitative and reproducible detection of platinum, palladium and rhodium in environmental matrices. Evidently, literature observations regarding the atomization conditions were proven fairly adequate. However, the provision of the optimum extraction conditions revealed several parameters that lie behind the reported uncertainties. The appropriate combination between extraction conditions and atomization programs afforded a considerable improvement in the recoveries and analytical features of platinum, palladium and rhodium determination with GFAAS. Cross-examination of the analytical data with various CRMs (certified reference materials) was used to validate the robustness of the method in heterogeneous matrices bearing different element levels. Under the optimum experimental conditions the method permits the determination at concentrations as low as (LOD3S/N) 1.9 ng g(-1), 0.45 ng g(-1) and 0.6 ng g(-1) for Pt, Pd and Rh, respectively affording recoveries in the range of 93-101%. The method was successfully applied to the assessment of Pt, Pd and Rh accumulation in real road dust and soil samples in Greece. (C) 2008 Published by Elsevier B.V.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1016/j.talanta.2008.04.007-
heal.identifier.secondary<Go to ISI>://000257577100022-
heal.identifier.secondaryhttp://ac.els-cdn.com/S003991400800266X/1-s2.0-S003991400800266X-main.pdf?_tid=ec1610b8-356a-11e3-8db8-00000aab0f02&acdnat=1381822089_43f456e245ef51987dbacedf0f662ee0-
heal.journalNameTalantaen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2008-
heal.publisherElsevieren
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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