Simultaneous Assay of Dexchlorpheniramine Maleate, Betamethasone, and Sodium Benzoate in Syrup by a Reliable and Robust HPLC Method

Table 4

Results of ANOVA analysis for calibration curve of betamethasone.

Model		Sum of squares	df	Mean square	F	Sig.
1	Regression	5,408E11	1	5,408E11	1,014E4	000^a
	Residual	2,134E8	4	5,335E7
	Total	5,411E11	5

^aPredictors (constant), betamethasone_concentration. ^bDependent variable, betamethasone_peak_area.