Spectrophotometric Methods for Simultaneous Determination of Oxytetracycline HCl and Flunixin Meglumine in Their Veterinary Pharmaceutical Formulation
Table 5
Statistical comparison of the results obtained by the proposed spectrophotometric methods and the reported method for the determination of Oxytetracycline HCl [26] or official method for the determination of Flunixin Meglumine [5] in their pure form, respectively.
Items
Oxytetracycline HCl
Flunixin Meglumine
Dual WL
D1
ΔP
D R
Reported method
Dual WL
D1
ΔP
D R
Official method
Mean
99.76
99.66
99.01
99.92
99.16
100.36
100.50
100.01
100.04
99.84
SD
1.00
0.98
0.89
1.11
0.89
0.71
0.77
0.91
1.00
0.89
Variance
1.00
0.96
0.79
1.23
0.79
0.50
0.59
0.82
1.00
0.79
n
5
5
5
5
5
5
5
5
5
5
Student’s t-test (2.31)
1.00
0.85
0.27
1.20
1.02
1.26
0.30
0.33
F test (6.39)
1.27
1.22
1.00
1.57
1.58
1.34
1.04
1.27
Zero-order spectrophotometric method. Zero-order spectrophotometric method. The values in the parenthesis are the corresponding theoretical values of and at p = 0.05.
