Development and Validation of Spectrophotometric Methods for the Determination of Rasagiline in Pharmaceutical Preparations

Table 2

Results of recovery studies by standard addition method.

Method	Amount taken; [μg mL^−1]^a	Amount added; [μg mL^−1]	Total amount found^b; [μg mL^−1]; [Mean ± S.D.^c]	Recovery [%]	RSD [%]
Method A		25	125.247 ± 1.14	100.99	1.23
	100	100	200.187 ± 1.58	100.19	0.93
		200	300.132 ± 2.58	100.07	0.96
Method B		25	125.14 ± 1.34	100.56	1.49
	100	100	200.36 ± 1.87	100.36	1.02
		250	351.49 ± 2.56	100.60	0.84
Method C		50	150.24 ± 1.14	100.48	0.79
	100	200	303.01 ± 1.58	101.51	0.76
		400	504.36 ± 3.87	101.09	0.81

aRasalas tablet [1 mg].
^bFive independent analyses.
^cStandard deviation.