Dolak, I.; Tegin, I.; Guzel, R.; Ziyadanogullari, R. 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 2010, 22, 6107-6116.