List of Articles Solid phase extraction Open Access Article Abstract Page Full-Text 1 - Nano Analysis in Biochemistry: In Vitro Separation and Determination of Aluminium in Blood of Dialysis Patients Based on Graphene Oxide Nanoparticles Dispersed to Ionic Liquid Farnaz Hosseini Hamid Shirkhanloo Negar Motakef Kazemi 10.22034/jna.2017.02.001 Open Access Article Abstract Page Full-Text 2 - Magnetic solid-phase extraction and Uv/vis Spectrophotometric determination of trace amount of Copper in vegetable and fruit samples after preconcentration of its Pentetate complex Hojjat Veisi Fatemeh Parvizi Mohammad Reza Abdi 10.22034/jna.2018.565390.1083 Open Access Article Abstract Page Full-Text 3 - Spectrophotometric Determination of Mefenamic Acid in Biological Samples Using Magnetic Iron Oxide Nanoparticles as a Sorbent for Solid Phase Extraction Ali Niazi Mahtab D. Torkman Neda Khorshidi 10.22034/jna.2015.02.002 Open Access Article Abstract Page Full-Text 4 - Magnetic solid-phase extraction and Uv/vis Spectrophotometric determination of trace amount of Copper in vegetable and fruit samples after preconcentration of its Pentetate complex Hojjat Veisi Fatemeh Parvizi Mohammad Reza Abdi 10.22034/jna.2018.543609 Open Access Article Abstract Page Full-Text 5 - Application of Nanoanalysis: Amine-Functionalized Mesoporous Silica nanoparticles for Mercury Speciation in Human Samples Sara Davari Hamid Shirkhanloo Negar Motakef Kazemi 10.22034/jna.2017.539360