Determination of Trace Amounts of Zinc, Iron and Copper by Flame Atomic Absorption after Their Preconcentration Using Sodium Dodecyl Sulfate (SDS) Coated Alumina Nanoparticles Modified with 3-Mercapto-D-Valin from Environmental Samples
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52385#.VJN2NcCAM4 Author(s) Mohammad Reza Baezzat , Hojjat Maleki , Ehsan Moghadamhosseyni , Mahboobeh Tabandeh Affiliation(s) Department of Chemistry, Payame Noor University, Tehran, Iran . ABSTRACT A sensitive and simple solid phase extraction method for the simultaneous determination of trace and toxic metals in environmental samples has been reported. The method is based on the adsorption of Zinc, Iron and Copper on SDS-coated alumina nanoparticles, which is also modified with 3-mercapto-D-valine. The retained analyte ions on modified solid phase were eluted using 5 mL of 4 mol·L ﹣1 HNO3. The analyte determination was car...