List of Articles vegetable and fruit samples Open Access Article Abstract Page Full-Text 1 - 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 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.2018.543609