Table 3.

Determination of ERG, PRO, CAF, CAM, and MEC in pharmaceutical preparation by the suggested chemometric methods and application of standard addition technique

Preparation		%Recovery ± %RSDa
		CLS	PLS	MCR-ALS
ERG	Application	99.22 ± 0.673	99.68 ± 0.491	99.95 ± 0.261
	Standard addition	100.69 ± 0.825	100.86 ± 0.603	100.98 ± 0.381
PRO	Application	101.31 ± 0.957	101.17 ± 0.735	101.05 ± 0.513
	Standard addition	98.43 ± 0.926	99.31 ± 0.704	99.84 ± 0.482
CAF	Application	98.11 ± 0.963	99.13 ± 0.741	99.79 ± 0.519
	Standard addition	101.97 ± 0.994	101.63 ± 0.772	101.31 ± 0.550
CAM	Application	101.21 ± 0.999	101.85 ± 0.777	101.51 ± 0.555
	Standard addition	99.22 ± 0.673	99.68 ± 0.491	99.95 ± 0.261
MEC	Application	98.76 ± 0.892	99.48 ± 0.670	99.89 ± 0.448
	Standard addition	101.31 ± 0.957	101.17 ± 0.735	101.05 ± 0.513

^aAverage of three determinations