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International Journal of Spectroscopy
Table of Contents
Special Issues
International Journal of Spectroscopy
/
2014
/
Article
/
Tab 4
/
Research Article
Estimation of Tadalafil Using Derivative Spectrophotometry in Bulk Material and in Pharmaceutical Formulation
Table 4
Repeatability studies.
Drug
Methods
Amount taken
g/mL
Amount found
g/mL
% Amount found
Mean
SD
% RSD
Tadalafil
A
20
20.15
100.75
1.06
B
20
20.02
100.14
0.37
C
40
40.30
100.76
0.85
D
40
39.90
99.75
0.70
: number of estimations.