Table 2.

Results of Scatchard analysis.

Binging sites	Linear equation	ra	Kdb (mmol/L)	Qmaxc (mmol/g)
Higher affinity sites	Q/Ce=0.8010−0.0757Q	0.9550	13.21	10.58
Lower affinity sites	Q/Ce=0.9653−0.4045Q	0.9556	2.47	2.38

^aThe correlation coefficient.

^bThe equilibrium dissociation constant.

^cThe maximum adsorption capacity.