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International Journal of Spectroscopy
Table of Contents
Special Issues
International Journal of Spectroscopy
/
2014
/
Article
/
Tab 5
/
Research Article
Estimation of Tadalafil Using Derivative Spectrophotometry in Bulk Material and in Pharmaceutical Formulation
Table 5
Ruggedness studies.
Drug
Methods
Analyst I
Analyst II
% Amount found ± SD
% RSD
% Amount found ± SD
% RSD
Tadalafil
A
0.89
0.44
B
0.18
0.11
C
0.39
0.28
D
0.59
1.11
: number of estimations.