Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10553583 | Journal of Pharmaceutical and Biomedical Analysis | 2011 | 9 Pages |
Abstract
A rapid, specific and novel gradient LC-MS method has been developed and validated for the identification and characterization of stressed degradation products (DPs) of prulifloxacin (PF) using liquid chromatography combined with quadrupole time-of-flight electrospray ionization tandem mass spectrometry (LC/Q-TOF-ESI-MS/MS). PF was subjected to hydrolytic (acidic, alkaline and neutral), oxidation, photolytic and thermal stress, as per ICH guidelines Q1A (R2). The drug showed extensive degradation in hydrolytic and oxidative, while it was stable to thermal and photolytic stress conditions. In total, 13 DPs were formed and the chromatographic separation of drug and its DPs was achieved on a C-18 column (4.6 Ã 250 mm, 5 μm) using gradient elution method. All the DPs have been identified and characterized using MSn experiments and accurate mass measurements. The LC-MS method was validated with respect to specificity, linearity, accuracy, precision and robustness.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
B. Raju, M. Ramesh, R. Srinivas, S. Satyanarayana Raju, Y. Venkateswarlu,