caa a22 4500 445880260 CHVBK 20180317145540.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s00604-011-0660-x doi (NATIONALLICENCE)springer-10.1007/s00604-011-0660-x Chemically modified alumina nanoparticles for selective solid phase extraction and preconcentration of trace amounts of Cd(II) [Elektronische Daten] [Abbas Afkhami, Tayyebeh Madrakian, Reza Ahmadi, Hasan Bagheri, Masoumeh Tabatabaee] We have developed a solid phase extraction method for the determination of cadmium ions in aqueous samples. It is based on the adsorption of Cd(II) on alumina nanoparticles coated with sodium dodecyl sulfate and modified with a newly synthesized Schiff base. Analytical parameters such as pH value, amount of adsorbent, type and concentration of eluent, flow rates of the sample and eluent, sample volume and matrix effects were optimized. Desorption is accomplished with 2molL−1 nitric acid. Cd(II) was then determined by flame atomic absorption spectrometry. The maximum enrichment factor is 75. Under the optimum experimental conditions, the detection limit is 0.14μgL−1 in original solution. The adsorption capacity of the modified sorbent is 4.90mgg−1 for cadmium ions. The method was applied to the determination of trace quantities of Cd(II) in water, wastewater, and biological and food samples with satisfactory results. Figure Schematic representation of the loading L on the alumina nanoparticles Springer-Verlag, 2011 Modified alumina nanoparticles nationallicence Preconcentration nationallicence Cadmium determination nationallicence Flame atomic absorption spectrometry nationallicence Afkhami Abbas Faculty of Chemistry, Bu-Ali Sina University, P.O. Box: 65178-38695, Hamedan, Iran aut Madrakian Tayyebeh Faculty of Chemistry, Bu-Ali Sina University, P.O. Box: 65178-38695, Hamedan, Iran aut Ahmadi Reza Faculty of Chemistry, Bu-Ali Sina University, P.O. Box: 65178-38695, Hamedan, Iran aut Bagheri Hasan Department of Chemistry, Takestan Branch, Islamic Azad University, P.O. Box: 34815-1515, Takestan, Iran aut Tabatabaee Masoumeh Department of Chemistry, Yazd Branch, Islamic Azad University, P.O. Box: 89195-155, Yazd, Iran aut Microchimica Acta Springer Vienna 175/1-2(2011-10-01), 69-77 0026-3672 175:1-2<69 2011 175 604 https://doi.org/10.1007/s00604-011-0660-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0660-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Afkhami Abbas Faculty of Chemistry, Bu-Ali Sina University, P.O. Box: 65178-38695, Hamedan, Iran aut NATIONALLICENCE 700 1- Madrakian Tayyebeh Faculty of Chemistry, Bu-Ali Sina University, P.O. Box: 65178-38695, Hamedan, Iran aut NATIONALLICENCE 700 1- Ahmadi Reza Faculty of Chemistry, Bu-Ali Sina University, P.O. Box: 65178-38695, Hamedan, Iran aut NATIONALLICENCE 700 1- Bagheri Hasan Department of Chemistry, Takestan Branch, Islamic Azad University, P.O. Box: 34815-1515, Takestan, Iran aut NATIONALLICENCE 700 1- Tabatabaee Masoumeh Department of Chemistry, Yazd Branch, Islamic Azad University, P.O. Box: 89195-155, Yazd, Iran aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 175/1-2(2011-10-01), 69-77 0026-3672 175:1-2<69 2011 175 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer