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Journal of Analytical Methods in Chemistry
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Journal of Analytical Methods in Chemistry
/
2018
/
Article
/
Tab 3
/
Research Article
Determination of Fluoroquinolones in Pharmaceutical Formulations by Extractive Spectrophotometric Methods Using Ion-Pair Complex Formation with Bromothymol Blue
Table 3
Evaluation of accuracy and precision of the proposed methods (
).
Method
Additive concentration (
μ
g/mL)
Found concentration (
μ
g/mL)
Recovery (%)
RSD (%)
RE (%)
Ofloxacin
5.00
5.11
102.19
2.31
2.2
10.00
10.26
102.64
1.34
2.6
15.00
14.89
99.25
0.88
−0.73
Levofloxacin
5.00
5.16
102.70
2.03
2.8
10.00
10.16
101.56
1.10
1.6
15.00
14.82
98.80
0.50
−1.2
Ciprofloxacin
5.00
5.13
102.71
1.92
2.6
10.00
9.74
97.41
0.52
−2.6
15.00
14.60
97.33
0.57
−2.7