Table 2.

Kinetic Analysis of Drug Release Data

Dissolution Medium	Correlation Coefficient (r2)			Release Order	Korsmeyer		Main Transport Mechanism
	Zero Order	First Order	Higuchi Model		r2	n*
In 0.1N HCl (pH 1.2)	0.778	0.861	0.937	Higuchi	0.315	0.955	Fickian
In 0.066M phosphate buffer (pH 6.8)	0.779	0.867	0.899	Higuchi	0.243	0.903	Fickian

Note: *n, diffusional exponent.