Dolak, Ibrahim, Ibrahim Tegin, Remziye Guzel, and Recep Ziyadanogullari. 2010. “Removal and Preconcentration of Pb(II), V(V), Cr(VI) from the Aqueous Solution and Selective Separation of V(V)-Cr(VI) by Using Functionalized Amberlite XAD-16 Resin With Dithioethylenediamine”. Asian Journal of Chemistry 22 (8):6107-16. https://asianpubs.org/index.php/ajchem/article/view/11789.