Formulation Development and Stability Studies of Norfloxacin Extended-Release Matrix Tablets

Table 6

Coefficients of determination (𝑟²) obtained from dissolution of norfloxacin coated formulations according to different mathematical models.

Formulation	Zero order	First order	Higuchi	Korsmeyer-Peppas
	𝑟^2	𝑟^2	𝑟^2	𝑟^2	𝑛
HPMC K100LV 20%	0.9827	0.9719	0.9649	0.9990	0.9283
HPMC K100LV 30%	0.9898	0.9571	0.9588	0.9999	0.8867
HPMC K4M 20%	0.9833	0.9981	0.9807	0.9998	0.7270
HPMC K4M 30%	0.9784	0.9921	0.9821	0.9984	0.7041
PEO N60K 20%	0.9759	0.9716	0.9685	0.9975	0.9892
PEO N60K 30%	0.9955	0.9766	0.9468	0.9992	1.0019
PEO 301 20%	0.9970	0.9593	0.9277	0.9979	0.8522
PEO 301 30%	0.9911	0.9586	0.9216	0.9917	0.8550