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Quantification of three Macrolide Antibiotics in Pharmaceutical lots by HPLC: Development, Validation and Application to a Simultaneous Separation

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      Abstract

      A new validated high performance liquid chromatographic (HPLC) method with rapid analysis time and high efficiency, for the analysis of erythromycin, azithromycin and spiramycin, under isocratic conditions with ODB RP 18 as a stationary phase is described. Using an eluent composed of acetonitrile –2-methyl-2-propanol –hydrogenphosphate buffer, pH 6.5, with 1.5% triethylamine (33:7: up to 100, v/v/v), delivered at a flow-rate of 1.0 mL min -1. Ultra Violet (UV) detection is performed at 210 nm. The selectivity is satisfactory enough and no problematic interfering peaks are observed. The procedure is quantitatively characterized and repeatability, linearity, detection and quantification limits are very satisfactory. The method is applied successfully for the assay of the studied drugs in pharmaceutical dosage forms as tablets and powder for oral suspension. Recovery experiments revealed recovery of 97.13–100.28%.

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      Spectrofluorimetric analysis of certain macrolide antibiotics in bulk and pharmaceutical formulations.

      The macrolides (erythromycin, erythromycin esters, azithromycin dihydrate, clarithromycin and roxithromycin) can be analyzed by a simple spectrofluorimetric method based on the oxidation by cerium(VI) in the presence of sulphuric acid and monitoring the fluorescence of cerium(III) formed at lambda(ex) 255 nm and lambda(em) 348 nm. All variables affecting the reaction conditions as cerium(VI), sulphuric acid concentrations, heating time, temperature and dilution solvents were carefully studied. Linear calibration graphs were obtained in the range of 42.6-1200 ng ml(-1) with a percentage relative standard deviation in the range of 0.014-0.058%. Quantitation and detection limits were calculated. The method was applied successfully for the assay of the studied drugs in pure and pharmaceutical dosage forms as tablets, capsules and suspension. Recovery experiments revealed recovery of 98.3-100.8%. The effect of potential interference due to common ingredients as glucose, sucrose, lactose, citric acid, and propylene glycol was investigated. Applying standard addition method shows a recovery of 97.7-100.9% macrolide antibiotics from their corresponding dosage forms.
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        Analysis of macrolide antibiotics.

        The following macrolide antibiotics have been covered in this review: erythromycin and its related substances, azithromycin, clarithromycin, dirithromycin, roxithromycin, flurithromycin, josamycin, rokitamycin, kitasamycin, mycinamycin, mirosamycin, oleandomycin, rosaramicin, spiramycin and tylosin. The application of various thin-layer chromatography, paper chromatography, gas chromatography, high-performance liquid chromatography and capillary zone electrophoresis procedures for their analysis are described. These techniques have been applied to the separation and quantitative analysis of the macrolides in fermentation media, purity assessment of raw materials, assay of pharmaceutical dosage forms and the measurement of clinically useful macrolide antibiotics in biological samples such as blood, plasma, serum, urine and tissues. Data relating to the chromatographic behaviour of some macrolide antibiotics as well as the various detection methods used, such as bioautography, UV spectrophotometry, fluorometry, electrochemical detection, chemiluminescence and mass spectrometry techniques are also included.
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          Rapid, sensitive and selective liquid chromatography–tandem mass spectrometry (LC–MS/MS) method for the quantification of topically applied azithromycin in rabbit conjunctiva tissues

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            Author and article information

            Affiliations
            [a ]Laboratory of Research on Bioactive Products and Biomass Valorization (LRPBVB), Ecole Normale Supérieure–Kouba, P.O. Box 92, Kouba, 16050, Algiers, Algeria
            [b ]Clinical Pharmacology, Department of Clinical and Biological Sciences, Faculty of Medicine, University of Turin, S. Luigi Gonzaga Hospital, Regione Gonzole 10, 10043 Orbassano (TO), Italy
            Author notes
            *Corresponding author. Tel.:+213–21–2975–11 Fax:+213–21–2820–67 E-mail: mahmoudi_a2003@ 123456yahoo.fr
            Journal
            BJPharm
            British Journal of Pharmacy
            University of Huddersfield Press
            2058-8356
            14 November 2016
            : 1
            : 1
            : 63-73
            10.5920/bjpharm.2016.03
            © 2016, A. Mahmoudi, Silvia De Francia, M.S. Boukhechem, Elisa Pirro

            This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY) 4.0 https://creativecommons.org/licenses/by/4.0/.

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