Spectrophotometric Determination of Gemifloxacin Mesylate, Moxifloxacin Hydrochloride, and Enrofloxacin in Pharmaceutical Formulations Using Acid Dyes
Table 3
Intraday and interday precision and accuracy data for MXF obtained by the proposed methods.
Method
Added (μg mL−1)
Intraday
Interday
Recovery %
Precision RSD %a
Accuracy RE %
Confidence limitb
Recovery %
Precision RSD %a
Accuracy RE %
Confidence limitb
BCP
2.0
99.50
0.36
−0.50
99.00
0.38
−1.00
1.98 ± 0.008
6.0
100.20
0.57
0.20
99.60
0.70
−0.40
5.976 ± 0.042
10
100.50
0.81
0.50
99.80
0.92
−0.20
9.98 ± 0.092
BPB
5.0
99.20
0.42
−0.80
100.30
0.50
0.30
5.015 ± 0.025
10
99.50
0.76
−0.50
99.20
0.79
−0.80
9.92 ± 0.078
15
99.70
0.90
−0.30
99.60
1.16
−0.40
14.94 ± 0.173
BTB
2.0
99.40
0.50
−0.60
100.10
0.58
0.10
2.002 ± 0.012
6.0
99.20
0.79
−0.80
99.70
0.76
−0.30
5.982 ± 0.045
10
99.50
1.05
−0.50
99.30
1.07
−0.70
9.93 ± 0.106
MO
5.0
100.30
0.42
0.30
100.40
0.47
0.40
5.02 ± 0.024
10
100.60
0.85
0.60
99.80
0.83
−0.20
9.98 ± 0.083
15
99.90
1.19
−0.10
99.20
1.23
−0.80
14.88 ± 0.183
Mean of six determinations; RSD %: percentage relative standard deviation; RE %: percentage relative error. Confidence limit at 95% confidence level and five degrees of freedom ().
