Sohrabi, M.R., H. Pasdar, S.H. Roudbaraki, and S. Ghajar. “Optimization Solid Phase Extraction of Copper(II) Using Modified Nanoporous Silica Prior to Determination by Flame Atomic Absorption Spectrometry by Taguchi Technique”. Asian Journal of Chemistry 25, no. 6 (January 9, 2013): 3418–3420. Accessed November 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_6_111.