Component

Initial Amount
 (ng/spot)

% Amount of standard drug added

% Drug recovered *

% R.S.D.

NEB

1000 

0

100.19

1.60

80

99.90

1.78

100

100.52

1.42

120

100.17

1.01

HCTZ

2500 

0

100.03

1.79

80

100.49

1.54

100

100.48

1.39

120

100.19

1.78