caa a22 4500 445879947 CHVBK 20180317145539.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s00604-010-0481-3 doi (NATIONALLICENCE)springer-10.1007/s00604-010-0481-3 Extraction of gallium, indium and thallium from aquatic media using amino silica gel modified by gallic acid [Elektronische Daten] [Mohamed Hassanien, Ibrahim Kenawy, Mohamed Mostafa, H. El-Dellay] The surface of amino-functionalized silica gel was modified with gallic acid to give a newly chelating matrix for extraction of Ga(III), In(III) and Tl(III). The pH ranges for the sorption and elution were opimized. The sorption capacities of the matrix are 0.29, 0.32, 0.35mmolg−1 for Ga(III), In(III) and Tl(III), respectively, the preconcentration factor is 250, and the lower limits of detection are 5.80, 1.82 and 1.11μgL−1, respectively. The interference by Al(III) can be masked by addition of fluoride, that of Fe(III) ion by its reduction to Fe(II) ion. The method was successfully applied to the analysis and separation of these ions from spiked water samples, zinc granules and lead sheet. Scheme 1 Reaction equation between APSG and GA Springer-Verlag, 2010 Silica nationallicence Gallic acid nationallicence Preconcentration nationallicence Aquatic nationallicence Hassanien Mohamed Department of Chemistry, Industrial Education College, Beni-Suef University, Beni-Suef, Egypt aut Kenawy Ibrahim Faculty of Science, Department of Chemistry, Mansoura University, Mansoura, Egypt aut Mostafa Mohamed Faculty of Science (Damietta), Department of Chemistry, Mansoura University, Mansoura, Egypt aut El-Dellay H. Faculty of Science (Damietta), Department of Chemistry, Mansoura University, Mansoura, Egypt aut Microchimica Acta Springer Vienna 172/1-2(2011-02-01), 137-145 0026-3672 172:1-2<137 2011 172 604 https://doi.org/10.1007/s00604-010-0481-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-010-0481-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hassanien Mohamed Department of Chemistry, Industrial Education College, Beni-Suef University, Beni-Suef, Egypt aut NATIONALLICENCE 700 1- Kenawy Ibrahim Faculty of Science, Department of Chemistry, Mansoura University, Mansoura, Egypt aut NATIONALLICENCE 700 1- Mostafa Mohamed Faculty of Science (Damietta), Department of Chemistry, Mansoura University, Mansoura, Egypt aut NATIONALLICENCE 700 1- El-Dellay H. Faculty of Science (Damietta), Department of Chemistry, Mansoura University, Mansoura, Egypt aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 172/1-2(2011-02-01), 137-145 0026-3672 172:1-2<137 2011 172 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer