Determination of Cobalt in Seawater Using Neutron Activation Analysis after Preconcentration by Adsorption onto γ-MnO₂ Nanomaterial

Figure 4

Effects of pH (a) and contact time (b) on the adsorption of Co(II) onto the γ-MnO₂ nanomaterial at different initial concentrations of cobalt.

(a)

(b)