Chemometric Methods for Simultaneous Determination of Candesartan Cilexetil and Hydrochlorothiazide in Binary Combinations

Table 12

Precision of the correction absorbance method in the determination of HCT and CAN.

λ	Added (µg/mL)		Found (µg/mL)
	HCT	CAN	HCT	CAN
340	15	15	14.72	14.71
250
340	15	15	15.22	15.23
250
340	15	15	15.13	14.93
250
340	15	15	15.27	15.14
250
340	15	15	15.2	15.24
250
Mean			15.11	15.05
SD			0.2226	0.2273
RSD(n = 5)			1.47	1.51
%R			100.73	100.33

¹ calculated using the regression equation of Y = 0.0054x + 0.0067 and the HCT calibration curve at 340 nm. ² calculated using the regression equation of Y = 0.0295x + 0.0648 and the HCT calibration curve at 250 nm.