List of Articles Flame Atomic Absorption Spectrometer Open Access Article Abstract Page Full-Text 1 - Preconcentration of Cu(II)with magnetic nanocomposite sorbentsprior to determination by Flame Atomic Absorption Spectrometer Open Access Article Abstract Page Full-Text 2 - Preconcentration of Hg(II) with novel nano-Fe3O4- sorbents prior to determination by CVAAS