Table 3.

Solution stability data at different storage conditions.

Analytes	Storage Conditions	Average %Recovery *
Atorvastatin	Normal laboratory temperature (25 °C) for 12 h	99.86
	Refrigerator temperature (4 °C) for 14 days	99.12
	−20 °C for 30 days	100.12
Simvastatin	Normal laboratory temperature (25 °C) for 12 h	99.74
	Refrigerator temperature (4 °C) for 14 days	99.87
	−20 °C for 30 days	99.84
Telmisartan	Normal laboratory temperature (25 °C) for 12 h	100.69
	Refrigerator temperature (4 °C) for 14 days	100.98
	−20 °C for 30 days	101.59
Irbesartan	Normal laboratory temperature (25 °C) for 12 h	100.96
	Refrigerator temperature (4 °C) for 14 days	101.56
	−20 °C for 30 days	101.26

* n = 3.