2026-05-09T13:50:13Z https://www.eurjchem.com/index.php/eurjchem/oai

oai:ojs.www.eurjchem.com:article/1000 2014-06-30T08:07:06Z eurjchem:ART driver

A new validated bio-analytical liquid chromatographic-tandem mass spectrometric (LC-MS/MS) method for the quantification of Azithromycin in human plasma Younes, Kareem Mahmoud El-Kady, Ehab Farouk Azithromycin Sildenafil citrate Internal standard Mass spectrometry Liquid-liquid extraction Liquid chromatography A simple, rapid and sensitive LC-MS/MS method was developed and validated for the quantification of azithromycin (AZI) in human plasma. Sildenafil citrate was used as an internal standard. The analytes were extracted from human plasma samples by liquid-liquid extraction technique. The reconstituted samples were chromatographed on a reversed ‑ phase column C18, 50 × 2.1 mm, 5 µm from Waters, by using a 80:20 (v:v) mixture of acetonitrile and 0.1% formic acid in water as the mobile phase at a flow rate of 0.5 mL/min. The calibration curve was linear (r2 > 0.99) over the concentration range of 5.0-1500.0 ng/mL. The results of the intra- and inter-day precision and accuracy studies were within the acceptable limits. A run time of 0.5 min for each sample made it possible to analyze more than 400 plasma samples per day. Atlanta Publishing House LLC 2014-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/1000 10.5155/eurjchem.5.2.241-246.1000 European Journal of Chemistry; Vol. 5 No. 2 (2014): June 2014; 241-246 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/1000/pdf_1000