Simultaneous Analysis of Losartan Potassium, Amlodipine Besylate, and Hydrochlorothiazide in Bulk and in Tablets by High-Performance Thin Layer Chromatography with UV-Absorption Densitometry

Table 3

Results from recovery studies.

Brand name	Drug	Recovery level (%)	Initial amount (ng)	Amount added (ng)	Recovery (%)	CV (%)
Trilopace*H	Losartan potassium (50 mg)	80	2000	1600	100.56	0.213
		100	2000	2000	99.43	0.321
		120	2000	2400	99.67	0.422
	Amlodipine besylate (5 mg)	80	200	160	100.58	0.616
		100	200	200	101.12	0.222
		120	200	240	99.85	0.414
	Hydrochlorothiazide (12.5 mg)	80	500	400	99.43	0.552
		100	500	500	99.21	0.608
		120	500	600	100.63	0.621