Development and Validation of RP-HPLC Method for Simultaneous Estimation of Aspirin and Esomeprazole Magnesium in Tablet Dosage Form

Table 3

Robustness study.

Condition varied	Changed condition	Area (𝑛=3)		% Assay
		ESO ± S.D.	ASP ± S.D.	ESO	ASP
Change in mobile phase ratio (v/v)	28 : 22 : 50	1299.76 ± 4.90	4797.53 ± 12.33	98.01	99.91
	22 : 28 : 50	1310.43 ± 5.60	4782.56 ± 15.12	100.82	99.68