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

Table 6

Intraday and interday precisions and accuracies by HPTLC method.

Added conc. (ng/band)	Precision studies		Accuracy studies
	Measured conc. (ng/band) mean ± SD; % RSD		Added conc. (ng/band)	% Recovery ± SD; % RSD (𝑛=3)
	Intraday (𝑛=3)	Interday (𝑛=3)
TLM
40	39.07±0.27; 0.69	38.25±0.57; 1.49	40	100.42±0.47; 0.72
120	120.87±0.45; 0.37	120.16±0.69; 0.57	80	99.95±0.68; 0.52
240	238.89±0.66; 0.28	238.50±0.51; 0.41	120	99.57±0.34; 0.18
ATV
10	9.88±0.13; 1.32	9.72±0.16; 1.65	10	97.86±0.17; 0.50
30	29.36±0.54; 1.84	29.28±0.24; 1.40	20	97.99±0.49; 0.71
60	59.70±0.51; 0.85	60.08±0.42; 0.70	30	98.81±0.37; 0.34

TLM: Telmisartan; ATV: Atorvastatin.