caa a22 4500 44588004X CHVBK 20180317145539.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00604-011-0685-1 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0685-1 Selective solid phase extraction of platinum on an ion imprinted polymers for its electrothermal atomic absorption spectrometric determination in environmental samples [Elektronische Daten] [Barbara Leśniewska, Monika Kosińska, Beata Godlewska-Żyłkiewicz, Elżbieta Zambrzycka, Agnieszka Wilczewska] An ion-imprinted polymer (IIP) was obtained by copolymerization of methacrylic acid (as a functional monomer) and ethylene glycol dimethacrylate (as a crosslinking agent) in the presence of various chelators for Pt(II) ion and using 2,2′-azo-bis-isobutyronitrile as the initiator. Specifically, acetaldehyde thiosemicarbazone (AcTSn) and benzaldehyde thiosemicarbazone (BnTSn) were used as chelators. The IIPs were applied as sorbents for solid-phase extraction of Pt(II) and Pt(IV) ions from aqueous solutions. The effects of acidity and flow rate of the sample, of elution conditions and of potentially interfering ions were investigated. The imprinting effect of analyte is clearly demonstrated by the fact that only the IIP is capable of quantitative retention of Pt(II) and Pt(IV) ions. The method works best in the pH range from 0.5 to 1 and from 3.5 to 9.5. The ions can be recovered with an acidic solution of thiourea. The Pt-AcTSn polymer displays better sorption properties for the separation of analytes. The selectivity coefficients of the Pt-AcTSn and control polymers for Pt(IV) in the presence Pd(II), Rh(III), Ru(III), Al(III) and Cu(II) were calculated, and the sorbent capacity for Pt(IV) was found to be 4.56μgg -1. The method was successfully applied to the determination of Pt(IV) by electrothermal atomic absorption spectrometry in tap water, tunnel dust and anode slime samples. Figure The new ion imprinted polymers based on Pt(II)-thiosemicarbazone derivative chelates were prepared and used as solid phase extraction sorbent for selective separation of platinum. The method was successfully applied to the determination of analyte in environmental samples by electrothermal atomic absorption spectrometry Springer-Verlag, 2011 Pt separation nationallicence Thiosemicarbazone complexes nationallicence Ion imprinted polymer nationallicence Solid phase extraction nationallicence Electrothermal atomic absorption spectrometry nationallicence Leśniewska Barbara Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut Kosińska Monika Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut Godlewska-Żyłkiewicz Beata Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut Zambrzycka Elżbieta Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut Wilczewska Agnieszka Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut Microchimica Acta Springer Vienna 175/3-4(2011-12-01), 273-282 0026-3672 175:3-4<273 2011 175 604 https://doi.org/10.1007/s00604-011-0685-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0685-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Leśniewska Barbara Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut NATIONALLICENCE 700 1- Kosińska Monika Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut NATIONALLICENCE 700 1- Godlewska-Żyłkiewicz Beata Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut NATIONALLICENCE 700 1- Zambrzycka Elżbieta Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut NATIONALLICENCE 700 1- Wilczewska Agnieszka Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399, Białystok, Poland aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 175/3-4(2011-12-01), 273-282 0026-3672 175:3-4<273 2011 175 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer