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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Żuromska-Witek, Barbara Żmudzki, Paweł Stanisławski, Michał Hubicka, Urszula Krzek, Jan |
| Copyright Year | 2014 |
| Abstract | A HPLC method was developed for determination of danofloxacin (DAN) in the presence of its photodegradation products. Chromatography was performed on a Gemini-NX C18 110A, 150 mm × 4.60 mm, 3 μm particle size column with 0.025 M phosphate buffer (pH = 5.00)–acetonitrile–methanol (95 : 10 : 30 v/v/v) as the mobile phase at a flow rate of 1.2 mL min−1. UV detection was performed at 280 nm. The column was thermostatted at 25 °C. The elaborated method meets the acceptance criteria for specificity, linearity, sensitivity, accuracy, and precision. The linear regression analysis for the calibration curve showed a good linear correlation over the concentration range 0.20–0.80 mg mL−1, with determination coefficient, R2, exceeding 0.9966. The method was shown to have good and intermediate precision, as reflected by the relative standard deviation values, lower than 2.21% and characterized by a recovery rate at three concentration levels from 98.0% to 101.70%. The limits of detection and quantification were respectively 0.0055 and 0.0167 mg mL−1. The photodegradation process of DAN followed kinetics of the first order reaction for the substrate. Ten products of photodegradation were identified by UPLC/MS/MS. |
| Starting Page | 2490 |
| Ending Page | 2498 |
| Page Count | 9 |
| File Format | HTM / HTML PDF |
| ISSN | 17599660 |
| Volume Number | 6 |
| Issue Number | 8 |
| Journal | Analytical Methods |
| DOI | 10.1039/c3ay42300j |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Photodegradation Linear regression Phosphate Micrometre PH Danofloxacin Regression analysis High-performance liquid chromatography Coefficient of variation Chromatography |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Engineering Chemical Engineering |
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