Name Marzieh Moradi Affiliation دانشجوی دانشگاه کردستان Degree _ Website Email — JournalPaper Presentation Speech WorkShop Book Innovation GrantAttraction Thesis Festival FinishedProject Sales Art StandardCreation TitleJournal 1 MnO2/3MgO Nanocomposite for Preconcentration and Determination of Trace Copper and Lead in Food and Water by Flame Atomic Absorption Spectrometry JOURNAL OF ANALYTICAL CHEMISTRY