Fig. 6From: A new sorbent based on MWCNTs modification for separation/preconcentration of trace amounts of Cd(II), Cr(III), Cu(II), Ni(II), and Pb(II) and their determination by flame atomic absorption spectrometryEffect of sample volume on adsorption of heavy metal ions. Conditions: The conditions are same as Fig. 5 except pH 5.0, 6.0, 9.0, 8.0 and 7.0 for Pb(II), Ni(II), Cd(II), Cu(II) and Cr(III) ions, respectivelyBack to article page