Objective:
Linezolid is a significant antibiotic used against severe infections initiated by multi-resistant bacterial pathogens.
Method:
Linezolid extraction from plasma is obtained using methanol. Chromatographic separation is achieved isocratically on a C18 column [Zorbax C18, 5 µm particle size, 150 mm ˟ 4.6 mm] making use of a mobile phase of acetonitrile / 0.05 M phosphate buffer, pH = 4.5 (30 : 70 v/v) at a flow rate of 1.2 mL/min with photodiode array detector DAD, at a wavelength of 256 nm.
Method:
Linezolid extraction from plasma is obtained using methanol. Chromatographic separation is achieved isocratically on a C18 column [Zorbax C18, 5 µm particle size, 150 mm ˟ 4.6 mm] making use of a mobile phase of acetonitrile / 0.05 M phosphate buffer, pH = 4.5 (30 : 70 v/v) at a flow rate of 1.2 mL/min with photodiode array detector DAD, at a wavelength of 256 nm.
Results :
The retention time of linezolid was 2.5 min. The analytical method was linear (r2 > 0.998) over the calibration range of 0.30 to 50.0 µg/mL. The extraction recoveries of linezolid range from 71.03 to 91.93 %. The limit of quantification and the limit of detection were 0.112 µg and 0.037 µg, respectively. The RSDs for intraday and interday assays were < 7.77 and 4.32 %, respectively. The intraday and interday accuracies were in the range 80.6-112 % and 77.44-104.85 %, respectively.
Conclusion:
The applied method is precise, accurate and appropriate for pharmacokinetic studies and therapeutic drug monitoring of linezolid in routine clinical practice.
Cet article compare les univers dystopiques imaginés par Ayerdhal dans Demain, une oasis, Jean-Marc Ligny dans AquaTM, Nick Wood dans Water Must Fall et Wanuri Kahiu dans Pumzi. Ces fictions climatiques décrivent des futurs africains marqués par des variations apocalyptiques autour de la désertification et de la pénurie d’eau. Elles activent des images afropessimistes pour mettre en scène des contextes dystopiques, propices à l’oppression des populations locales et à la spoliation des ressources naturelles du continent. Les auteurs n’en ménagent pas moins, dans chacun de ces futurs cauchemardesques, des perspectives de mondes nouveaux portant des espérances utopiques. Celles-ci émergent des mouvements de résistance locaux qui esquissent, souvent à travers des figures féminines, les promesses d’un avenir différent : la possibilité d’Afriques alternatives, émancipées et ambitieuses qui entendent forger de nouveaux récits et des réponses originales à la demande d’avenir du continent.
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