I. Dolak, I. Tegin, R. Guzel, and R. Ziyadanogullari, “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”, ajc, vol. 22, no. 8, pp. 6107–6116, Jun. 2010.