Development and Validation of HPTLC Method for Estimation of Carbamazepine in Formulations and Its In Vitro Release Study

Table 2

Recovery studies (𝑛=6).

Formulation	Amount of drug analyzed (ng)	Amount of drug added (ng)	Theoretical concentration (ng)	Total amount of drug analyzed (ng)	% Recovery ± SD
F1	200	160	360	360.36	100.1
	200	200	400	405.16	101.3
	200	240	440	437.48	99.4
				% Average recovery ± SD	100.3 ± 1.3
F2	200	160	360	360.7	100.2
	200	200	400	397.8	99.5
	200	240	440	448.21	101.9
				% Average recovery ± SD	100.5 ± 1.7
F3	200	160	360	364.83	101.3
	200	200	400	402.37	100.6
	200	240	440	437.5	99.4
				% Average recovery ± SD	100.5 ± 1.3
Marketted	200	160	360	359.24	99.8
Tablets	200	200	400	400.35	100.1
	200	240	440	438.31	99.7
				% Average recovery ± SD	99.9 ± 1.9