Development and Validation of Stability Indicating HPTLC and HPLC Methods for Simultaneous Determination of Telmisartan and Atorvastatin in Their Formulations

Table 4

Results of analysis of tablets.

Method	RP-LC		HPTLC
	TLM	ATV	TLM	ATV
Brand I
Label claim (mg/tablet)	40	10	40	10
% Mean (𝑛=5)	99.56	98.42	101.07	97.80
Standard deviation	1.1561	0.9763	0.8913	0.6516
Standard error	1.4132	0.7631	0.6757	0.8318
RSD (%)	1.1612	0.9920	0.8819	0.6663
Brand II
Label claim (mg/tablet)	40	10	40	10
% Mean (𝑛=5)	100.71	97.52	100.13	99.56
Standard deviation	1.1732	0.4897	0.7321	1.4631
Standard error	0.1431	0.2793	0.1896	0.5279
RSD (%)	1.1649	0.5022	0.7311	1.4696

TLM: Telmisartan; ATV: Atorvastatin.