Table 4.

Coefficients of determination (R²) values for release data fitting.

Sample	Zeroth Order	First Order	Higuchi	Hixon–Crowell	Baker–Lonsdale	Square Root of Mass	Three Second Root of Mass
P6M4.56	0.33	0.94	0.88	0.79	0.97	0.69	0.56
P6M36	0.63	0.90	0.97	0.82	0.99	0.77	0.71
P25M4.56	−0.46	0.71	0.65	0.45	0.94	0.28	0.07
P25M36	0.84	0.95	0.98	0.92	0.99	0.91	0.88