Stability-Indicating HPTLC-Densitometric Method for Estimation of Dorzolamide Hydrochloride in Eye Drops

Table 5

Recovery studies^a.

Label claim	Amount of drug added (%)	Total amount of drug present ng/spot	Amount found ng/spot	% Recovery
22.26 mg/ml	80	400.68	399.75	99.77
	100	445.20	442.79	99.46
	120	489.72	485.01	99.04