Table 4.

Correlation co-efficient (R²) obtained from modelling 5-FU-loaded 2% PEG-CHIT-MSNs through release kinetic models at pH 7.4 and 4.2.

pH	Zero-Order	First-Order	Higuchi’s	Hixson-Crowell’s	Korsmeyer-Peppas’	Kopcha’s
Correlation value (R2)
4.2	0.81	0.55	0.91	0.27	0.95	0.98
7.4	0.35	0.26	0.48	0.64	0.65	0.16