Novel HPLC Analysis of Hydrocortisone in Conventional and Controlled-Release Pharmaceutical Preparations

Table 3

Intraday precision of proposed HPLC method showing the mean percentage recovery and RSD of hydrocortisone at different concentrations.

Number of runs	Concentration levels (mg/ml)	Amount (mg/ml)	Percentage recovery (%)	% RSD
1	0.02	0.01990	99.52	0.55
2		0.01997	99.83
3		0.01975	98.76
1	0.10	0.10052	100.52	0.54
2		0.09945	99.45
3		0.10000	100.03
1	0.40	0.39952	99.88	0.19
2		0.39828	99.57
3		0.39964	99.91

of three replicate determinations.