Quantification of Benazepril Hydrochloride and Hydrochlorothiazide in Tablet Dosage Form by Simultaneous Equation Spectrophotometric Method

Table 3

Determination of precision for BEN.

BEN	Conc. (μg/mL)	Intraday mean ± SD (𝑛=3)	%RSD	Interday mean ± SD (𝑛=3)	%RSD
At 240 nm	6	0.12267±0.00058	0.47	0.124±0.001	0.81
	8	0.15533±0.00115	0.74	0.15533±0.00058	0.37
	10	0.196±0.001	0.51	0.19533±0.00058	0.30
At 270 nm	6	0.03067±0.00058	1.88	0.03067±0.00058	1.88
	8	0.3633±0.00058	1.59	0.03667±0.00058	1.58
	10	0.04367±0.00058	1.32	0.04767±0.00058	1.21