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Tytuł: Development of Solid Phase Extraction Method Based on Ion Imprinted Polymer for Determination of Cr(III) Ions by ETAAS in Waters
Autorzy: Trzonkowska, Laura
Leśniewska, Barbara
Godlewska-Żyłkiewicz, Beata
Słowa kluczowe: Chromium(III)
ion imprinted polymer
Data wydania: 2022
Data dodania: 19-maj-2023
Wydawca: MDPI
Źródło: Water, Vol. 14 Issue 4 (2022), pp. 1-16
Abstrakt: In this work, a new solid phase extraction method for the determination of chromium species in water samples by electrothermal atomic absorption spectrometry was developed. For selective separation of Cr(III) ions under dynamic conditions, two ion imprinted polymers containing Cr(III)-1,10-phenanthroline complex (Cr(III)-phen) were prepared with the use of one (styrene, ST) or two (styrene and 4-vinylpyridine, ST-4VP) functional monomers. The physicochemical properties of those solid sorbents towards Cr(III) ions were studied and compared. It was found that Cr(III) ions were retained on the Cr(III)-phen-ST and Cr(III)-phen-ST-4VP polymers with high efficiency and repeatability (91.6% and 92.9%, RSD < 2%) from solutions at pH 4.5. The quantitative recovery of the analyte (91.7% and 93.9%, RSD < 4%) was obtained with 0.1 mol/L EDTA solution. The introduction of 4VP, an additional functional monomer, improved selectivity of the Cr(III)-phen-ST-4VP polymer towards Cr(III) ions in the presence of Cu(II), Mn(II) and Fe(III) ions, and slightly decreased the sorption capacity and stability of that polymer. The accuracy of procedures based on both polymeric sorbents was proved by analyzing the standard reference material of surface water SRM 1643e. The method using the Cr(III)-phen-ST polymer was applied for determining of Cr(III) ions in tap water and infusion of a green tea.
Afiliacja: Laura Trzonkowska - Department of Analytical Chemistry, Faculty of Chemistry, University of Bialystok
Barbara Leśniewska - Department of Analytical Chemistry, Faculty of Chemistry, University of Bialystok
Beata Godlewska-Żyłkiewicz - Department of Analytical Chemistry, Faculty of Chemistry, University of Bialystok
E-mail: Laura Trzonkowska: ;
Barbara Leśniewska: :
Beata Godlewska-Żyłkiewicz: ;
Sponsorzy: Research work financed by the Ministry of Science and Education as part of a grant for maintaining research potential awarded to the Faculty of Chemistry, University of Bialystok.
DOI: 10.3390/w14040529
e-ISSN: 2073-4441
metadata.dc.identifier.orcid: brakorcid
Typ Dokumentu: Article
Właściciel praw: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license
Występuje w kolekcji(ach):Artykuły naukowe (WChem)

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