Research Article

Speciation Studies of L-Histidine Complexes of Pb(II), Cd(II), and Hg(II) in DMSO-Water Mixtures

Figure 2

Variation of stability constant values of His complexes with reciprocal of dielectric constant ( 1 / 𝐷 ) of DMSO-water mixtures (a) Pb(II); (b) Cd(II); (c) Hg(II); (star) log 𝛽 M L (square) log 𝛽 M L 2 ; (circle) log 𝛽 M L 2 H ; (triangle up) log 𝛽 M L 2 H 2 ; (triangle down) log 𝛽 M L 2 H 3 ; (diamond) log 𝛽 M L 2 H 4 .
265249.fig.002a
(a)
265249.fig.002b
(b)
265249.fig.002c
(c)