Table 4

Determination of ETD in it's pharmaceutical dosage form applying the standard addition technique.
Dosage forms
 Taken (μg mL-1)
 Added (μg mL-1)
 Proposed methods Recovery a % ± RSD






Napilac capsules
 Etodine capsules
A
 2.0
 -
 99.98 ± 0.19
 100.01 ± 0.16


1.0
 100.05 ± 0.20
 99.99 ± 0.18


3.0
 99.93 ± 0.32
 99.60 ± 0.26


5.0
 99.84 ± 0.47
 100.35 ± 0.32





B
 2.0
 -
 100.09 ± 0.21
 99.95 ± 0.27


2.0
 99.74 ± 0.26
 99.60 ± 0.18


4.0
 99.30 ± 0.38
 100.10 ± 0.22


6.0
 99.55 ± 0.55
 99.70 ± 0.56





C
 4.0
 -
 100.25 ± 0.19
 100.08 ± 0.23


4.0
 99.80 ± 0.34
 100.40 ± 0.51


8.0
 100.15 ± 0.45
 98.90 ± 0.49


12
 99.79 ± 0.62
 100.05 ± 0.54

a Average of six determinations.

Gouda and Hassan Chemistry Central Journal 2008 2:7   doi:10.1186/1752-153X-2-7