Inter - day precision                                          Intra- day  precision

 

Amount of drug added
(μg/mL)

Amount of
drug remaining
(μg/mL)

% of  drug recovered

% RSD

Amount of
drug remaining
(μg/mL)

% of  drug recovered

% RSD

2

1.97

97.30

1.91

2.057

102.85

1.185

10

9.98

99.37

0.969

9.83

98.3

1.361

20

20.01

100.42

0.159

20.07

100.35

0.270

Table 4: Intra and inter-day precision and recovery studies of HPLC method (n=6): Curcumin.