Title |
Development and validation of a liquid chromatography‐tandem mass spectrometry (LC‐MS/MS) method for the quantification of tigecycline in rat brain tissues
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Published in |
Biomedical Chromatography, October 2015
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DOI | 10.1002/bmc.3616 |
Pubmed ID | |
Authors |
Chiedza F Munyeza, Adeola Shobo, Sooraj Baijnath, Dominika Bratkowska, Suhashni Naiker, Linda A Bester, Sanil D Singh, Glenn E M Maguire, Hendrik G Kruger, Tricia Naicker, Thavendran Govender |
Abstract |
Tigecycline (TIG), a derivative of minocycline, is the first in the novel class of glycylcyclines and is currently indicated for the treatment of complicated skin structure and intra-abdominal infections. A selective, accurate and reversed-phase high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was developed for the determination of TIG in rat brain tissues. Sample preparation was based on protein precipitation and solid phase extraction using Supel-Select HLB (30 mg/1 mL) cartridges. The samples were separated on YMC Triart C18 column (150 mm x 3.0 mm. 3.0 µm) using gradient elution. Positive electrospray ionization (ESI+) was applied for the detection mechanism using multiple reaction monitoring (MRM) mode. The method was validated over the concentration range of 150-1200 ng/mL for rat brain tissue. Precision and accuracy for all brain analyses were within the acceptable limit. The mean extraction recovery in rat brain was 83.6%. This validated method was successfully applied to a pharmacokinetic study in female Sprague Dawley rats which were given a dose of 25 mg/kg TIG intraperitoneally at various time points. This article is protected by copyright. All rights reserved. |
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