Green Analytical Methods for the Separation of Seven Antihistamines: Application in Separation of Azelastine and Related Impurities in Nasal Solution

Table 6

Recovery of standard AZE added to fortify sample solutions and analyzed by the proposed method.

Sample	Added concentration; (μg mL^−1)		Found concentration; (μg mL^−1)	Recovery
	Sample	Standard	Standard	(%)
AZE	15.00	10.0	9.31 ± 0.12	93.10
	15.00	25.0	24.49 ± 0.22	97.97
	15.00	40.0	39.31 ± 0.18	98.27