Chitosan Hydrogels for Chondroitin Sulphate Controlled Release: An Analytical Characterization

Table 1

Repeatability and intermediate precision of the LC-UV method.

	Level I; (0.01 mg/mL)	Level II; (0.3 mg/mL)	Level III; (1 mg/mL)
	Mean value ± SD (RSD %)
Repeatability	222.35 ± 7.15 (3.22)	4122.11 ± 28.91 (0.70)	12530.9 ± 33.06 (0.26)
Intermediate precision	248 ± 22 (8.83); ( = 0.27)^a	4974 ± 55 (1.12); ( = 0.99)^a	15208 ± 153 (1.01); ( = 0.09)^a

Homogeneity of variance test: confidence level, 95%.