Research Article
Simple and Selective Spectrophotometric Determination of Ofloxacin in Pharmaceutical Formulations Using Two Sulphonphthalein Acid Dyes
Table 3
Evaluation of intraday and interday accuracy and precision.
| Method | OFX taken (µg/mL) | Intraday accuracy and precision | Interday accuracy and precision | OFX found (µg/mL) | % RE | % RSD | OFX found (µg/mL) | % RE | % RSD |
| Method A | 8.00 | 7.83 | 2.13 | 1.02 | 7.76 | 2.98 | 1.18 | 12.0 | 11.77 | 1.92 | 1.14 | 11.68 | 2.66 | 1.29 | 16.0 | 15.61 | 2.44 | 1.22 | 15.50 | 3.11 | 1.31 |
| Method B | 8.00 | 7.85 | 1.88 | 1.17 | 7.77 | 2.87 | 1.24 | 12.0 | 11.71 | 2.45 | 1.04 | 11.64 | 3.00 | 1.13 | 16.0 | 15.68 | 1.97 | 1.21 | 15.60 | 2.50 | 1.29 |
|
|
RE: relative error and RSD: relative standard deviation.
|