Kinetic parameters for the magnetic hydrogel nanocomposite V_c.

Release medium	Zero order		1st order		Higuchi		Hixson–Crowell		Korsmeyer–Peppas
	K 1	R 2	K 2	R 2	K 3	R 2	K 4	R 2	K 5	R 2	n
pH 7.4	0.0749	0.727	−0.002	0.830	0.031	0.945	−0.003	0.896	0.837	0.930	0.295
pH 6.7	0.0785	0.907	−0.001	0.7387	0.030	0.950	−0.003	0.892	−1.157	0.929	0.395
pH 5.4	0.0825	0.920	−0.002	0.834	0.030	0.946	−0.003	0.955	−1.210	0.945	0.398