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• W4311854480 abstract "In December 2019, the World Health Organization was informed of an outbreak of pneumonia of unknown etiology in Wuhan, Hubei Province, China. On January 7, 2020, a new type of coronavirus was isolated, with the WHO later officially calling it “COVID-19” and the International Committee on Taxonomy of Viruses naming the virus “SARS-CoV-2”. On January 30, 2020, the WHO declared the severe acute respiratory syndrome coronavirus 2 outbreak a public health emergency of international concern, making it an unprecedented global public health challenge. From a scientific and literary reference, it was established that the main drugs in the therapy with Covid-19 are Dexamethasone and Levofluoxetine. For this reason, we pay attention to the analysis of these two medicinal products. In the literature, we did not find an analysis of a combination of Dexamethasone and Levofloxacin. Development and validation of a highperformance liquid chromatographic analytical procedure for simultaneously determining Dexamethasone and Levofloxacin in a synthetic mixture is described in this paper. The separation was made with a LiChrosorb RP 18 (250 × 4.6 mm) column, at 25 °C temperature,with isocratic mode andmobile phase,containingt acetonitrile and woter (70-30v/v). Eluent was monitored at 254 nm and the flow rate was 1.0 ml/min. Dexamethasone and Levofluoxetine were effectively separated with retention time (tr) of 4.69 min and 14.51 min,respectively,with in the selected chromatographic conditions.The method was validated for analytical parameters: specificity, linearity, precision, accuracy,andlimits of detection and quantitation. The calibration curves were linear inthe concentration range of 12.5 to 100.0 μg/ml for Dexamethasone and Levofloxacin, and the regression coefficientswere more than 0.999. For Dexamethasone and Levofloxacin the recovery was 100.01% and 100.04%, respectively. This analytical procedure is applicable for the quality control of drug formulations." @default.
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• W4311854480 date "2022-12-16" @default.
• W4311854480 modified "2023-10-14" @default.
• W4311854480 title "Development of RP-HPLC methods for the analysis of Dexamethasone and Levofloxacin alone and in combinations used in the therapy of Covid-19" @default.
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• W4311854480 doi "https://doi.org/10.3897/pharmacia.69.e97779" @default.
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