caa a22 4500 445881240 CHVBK 20180317145544.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00604-011-0630-3 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0630-3 Coliform bacteria immobilized on titanium dioxide nanoparticles as a biosorbent for trace lead preconcentration followed by atomic absorption spectrometric determination [Elektronische Daten] [Dilek Bakircioglu, Gokhan Ucar, Yasemin Kurtulus] Coliform bacteria physically immobilized on titanium dioxide nanoparticles can be used as a biosorbent for solid phase extraction of lead (II) ions from aqueous solution using a flow injection system coupled to flame atomic absorption spectrometry (FAAS). Effects of pH value, sample volume, flow rates of loading and elution, and the type and volume of eluent were investigated. Lead ions were sorbed on a biosorbent mini-column at pH 6.0, eluted with 1molL−1 HCl and then determined by FAAS. The limit of detection for the water samples is in order of 0.90μgL−1. The accuracy of the method was confirmed by analyzing a certified reference material (GBW 07605; tea). The results are in good agreement with the certified value. The precision of the method was also satisfactory. The procedure was applied to the evaluation of lead ions in river water, wine, and baby food. Figure Schematic diagram of the on-line preconcentration system Springer-Verlag, 2011 Coliform bacteria nationallicence Titanium dioxide nationallicence Biosorption nationallicence Lead nationallicence Flow injection nationallicence Bakircioglu Dilek Department of Chemistry, Trakya University, Faculty of Science, 22030, Edirne, Turkey aut Ucar Gokhan Department of Chemistry, Trakya University, Faculty of Science, 22030, Edirne, Turkey aut Kurtulus Yasemin Department of Chemistry, Trakya University, Faculty of Science, 22030, Edirne, Turkey aut Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 367-374 0026-3672 174:3-4<367 2011 174 604 https://doi.org/10.1007/s00604-011-0630-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0630-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bakircioglu Dilek Department of Chemistry, Trakya University, Faculty of Science, 22030, Edirne, Turkey aut NATIONALLICENCE 700 1- Ucar Gokhan Department of Chemistry, Trakya University, Faculty of Science, 22030, Edirne, Turkey aut NATIONALLICENCE 700 1- Kurtulus Yasemin Department of Chemistry, Trakya University, Faculty of Science, 22030, Edirne, Turkey aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 367-374 0026-3672 174:3-4<367 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer