Stress Degradation Assessment of Lamotrigine Using a Validated Stability-Indicating HPTLC Method

Table 2

Intra- and interday precisions and accuracy of the proposed HPTLC method for the determination of LAM.

Frequency of analysis	Concentration taken; (ng/spot)	Concentration found ± SD* (ng/spot)	RSD; (%)	Er; (%)
	30	29.94 ± 0.27	0.91	−0.21
Intraday	150	150.05 ± 1.03	0.68	0.03
	250	250.26 ± 0.59	0.24	0.11
	30	30.06 ± 0.15	0.50	0.19
Interday	150	149.55 ± 1.15	0.77	−0.30
	250	250.32 ± 1.95	0.78	0.13

∗Values are the mean of 5 experiments.