Moghimi, A. and Tajodini, N. (2010) “Preconcentration of Copper(II) in Water Samples Using Polyurethane Foam/2-(6’-Ethyl-2’-benzothiazolylazo)chromotropic Acid”, Asian Journal of Chemistry, 22(5), pp. 3325–3334. Available at: https://asianpubs.org/index.php/ajchem/article/view/11551 (Accessed: 18 July 2024).