Items Sodium hydroxide method Silver nitrate method Reference method (2)
Mean± S.D P=0.05 99.57±1.413 99.18±1.347 99.65± 0.98
N 5 5 5
V 1.948 1.816 0.961
S.D 1.413 1.347 0.980
R.S.D 1.419 1.358 0.983
t 0.924(2.570) 0.631(2.57)  
F 2.078(5.19) 1.878(5.19)  
Theoretical values of t and F at P=0.05
Table 2: Statistical data for determination of Neurontin capsules using the proposed methods.