Determination of Cefoperazone Sodium in Presence of Related Impurities by Improved Classical Least Squares Chemometric Methods: A Comparative Study

Table 5

One-way ANOVA parameters for the different proposed models used for the determination of CEF in Cefobid Vial.

Analyte	Source of variation	DF	Sum of squares	Mean square	-value
CEF	Between exp.	3	15.829	5.276	1.882
	Within exp.	20	56.069	2.803

There was no significant difference among the models using one-way ANOVA (-test), where tabulated is 3.098 at .