Table 3.

K_d, K, and K' values of Zn(II), Cd(II) and Pb(II) with respect to Hg(II).

Metal Ion	MIP		NIP		K'
	Kd	K	Kd	K
Hg(II)	0.87	-	0.66	-	-
Zn(II)	0.43	2.05	0.66	1.00	2.03
Cd(II)	0.54	1.60	0.62	1.07	1.50
Pb(II)	0.04	22.52	0.04	15.42	1.46