Preparation and In Vitro Evaluation of Ethylcellulose and Polymethacrylate Resins Loaded Microparticles Containing Hydrophilic Drug

Table 2

In vitro release kinetics study.

Formulation code	𝑟^2 (regression coefficient)
	Zero order	First order	Higuchi	Hixon-Crowell
F4	0.8744	0.9046	0.9280	0.8953
F8	0.9657	0.9828	0.9856	0.9793
F12	0.9870	0.9783	0.9933	0.9929