Name Seyde elham moedi Affiliation دانشجوی دانشگاه کردستان Degree _ Website Email — JournalPaper Presentation Speech WorkShop Book Innovation GrantAttraction Thesis Festival FinishedProject Sales Art StandardCreation TitleJournal 1 Evaluation of Graphene as a Solid-Phase Extraction Sorbent for the Preconcentration and Determination of Trace Amounts of Nickel in Food Samples Prior to Flame Atomic Absorption Spectrometry Journal of AOAC International 2 Cold-induced aggregation microextraction technique based on ionic liquid for preconcentration and determination of nickel in food samples JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY