European Journal of Chemistry

Two spectrophotometric methods for the determination of azithromycin and roxithromycin in pharmaceutical preparations

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Fawzia Ahmed Ibrahim
Mary Elias Kamel Wahba
Galal Magdy Galal


Two new and simple spectrophotometric procedures have been proposed and validated for estimation of two important macrolide antibiotics namely, azithromycin dihydrate and roxithromycin. Method I depends on complex formation between any of the two drugs and copper in acidic medium where the absorbances of the produced complexes are measured at 250 and 264 nm with linearity ranges of 1.0-100.0 and 2.0-130.0 µg/mL for the two drugs, respectively. Method II depends on the reaction of these drugs with N-bromosuccinimide forming a product which is yellow colored, measured at 264 and 278 nm, with linearity ranges of 2.0-140.0 and 3.0-160.0 µg/mL for azithromycin dihydrate and roxithromycin, respectively. The proposed methods were subjected to detailed validation procedure; moreover they were used for the estimation of the concerned drugs in their different dosage forms. Study of the reactions stoichiometry was carried out; furthermore, a reaction mechanism proposal was presented.

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How to Cite
Ibrahim, F. A.; Wahba, M. E. K.; Galal, G. M. Two Spectrophotometric Methods for the Determination of Azithromycin and Roxithromycin in Pharmaceutical Preparations. Eur. J. Chem. 2017, 8, 203-210.

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[1]. The British Pharmacopoeia, The Stationary Office: London, Electronic version, 2013.

[2]. Sweetman, S. C., Martindale: The Complete Drug Reference, Pharmaceutical Press, London, 2009.

[3]. Yang, Z. Y.; Wang, L.; Tang, X. J. Pharm. Biomed. Anal. 2009, 49(3), 811-815.

[4]. Ghari, T.; Kobarfard, F.; Mortazavi, S. A. Iran. J. Pharm. Res. 2013, 12, 57-63.

[5]. Choemunng, A.; Na-Bangchang, K. J. Liq. Chromatogr. R. T. 2010, 33(16), 1516-1528.

[6]. El-Gindy, A.; Attia, K. A.; Nassar, M. W.; Al Abasawi, N. M.; Al-Shabrawi, M. J. AOAC Int. 2011, 94(2), 513-522.

[7]. Xue-Min, Z.; Jie, L.; Juan, G.; Quan-Sheng, Y.; Wen-Yan, W. Die Pharmazie-Int. J. Pharm. Sci. 2007, 62(4), 255-257.

[8]. Shen, Y.; Yin, C.; Su, M.; Tu, J. J. Pharm. Biomed. Anal. 2010, 52(1), 99-104.

[9]. Chen, L.; Qin, F.; Ma, Y.; Li, F. J. Chromatogr. B. 2007, 855(2), 255-261.

[10]. Kulikov, A.; Verushkin, A. Chromatographia 2004, 60(1-2), 33-38.

[11]. Almeida, V. G.; Braga, V. S.; Pacheco, W. F.; Cassella, R. J. J. Fluoresc. 2013, 23(1), 31-39.

[12]. Suhagia, B.; Shah, S.; Rathod, I.; Patel, H.; Doshi, K. Indian J. Pharm. Sci. 2006, 68(2), 242-245.

[13]. Huakan, L.; Yanqing, Z.; Yuhua, W.; Janfeng, K. Chinese J. Anal. Chem. 2004, 32(5), 598-600.

[14]. Rachidi, M.; Elharti, J.; Digua, K.; Cherrah, Y.; Bouklouze, A. Anal. Lett. 2006, 39(9), 1917-1926.

[15]. Huang, W.; Liu, X.; Zhao, F. Guang Pu Xue Yu Guang Pu Fen Xi. 2006, 26(5), 913-916.

[16]. Paula, C. E. R. d.; Almeida, V. G.; Cassella, R. J. J. Brazil. Chem. Soc. 2010, 21(9), 1664-1671.

[17]. Shah, V.; Raj, H. Int. J. Pharm. Sci. Res. 2012, 3(6), 1753-1760.

[18]. Qi, M.; Wang, P.; Cong, R.; Yang, J. J. Pharm. Biomed. Anal. 2004, 35(5), 1287-1291.

[19]. Hang, T. J.; Zhang, M.; Song, M.; Shen, J. P. Clin. Chim. Acta. 2007, 382(1), 20-24.

[20]. Lim, J. H.; Park, B. K.; Yun, H. I. J. Vet. Sci. 2003, 4(1), 35-39.

[21]. Peng, J.; Hu, X. J. Lumin. 2011, 131(5), 952-955.

[22]. Glowka, F. K.; Karazniewicz-Lada, M. J. Chromatogr. B. 2007, 852(1), 669-673.

[23]. Zhao, G.; Li, H. Guang Pu Xue Yu Guang Pu Fen Xi 2003, 23(1), 157-159.

[24]. Walash, M. I.; Rizk, M. S.; Eid, M. I.; Fathy, M. E. J. AOAC Int. 2007, 90(6), 1579-1587.

[25]. Britton, H. T. S., Hydrogen Ions, Revised and Enlarged. 4th edition, Chapman & Hall, London, 1955.

[26]. Barakat, M.; Mousa, G. J. Pharm. Pharmacol. 1952, 4(1), 115-117.

[27]. Rahman, N.; Haque, S. M.; Azmi, S. N. H.; Rahman, H. J. Saudi Chem. Soc. 2013, 21(1), 25-34.

[28]. Dunstan, S.; Henbest, H. B. J. Chem. Soc. 1957, 4905-4908.

[29]. Skoog, D. A.; Holler, F. J.; Crouch, S. R., Principles of Instrumental Analysis, 6th Ed., Thomson Brook/Cole, Canada, 2007.

[30]. ICH Harmonized Tripartite Guideline, Validation of Analytical Procedures: Text and Methodology, Q2 (R1), Current Step 4 Version, Parent Guidelines on Methodology Dated November 6 1996, Incorporated in November [ RegulatoryInformation/Guidances/UCM128049.pdf] website (Accessed April 8, 2016).

[31]. Miller, J. N.; Miller, J. C., Statistics and Chemometrics for Analytical Chemistry. Prentice Hall/Pearson, Harlow, England, 2010.

[32]. Rose, J., Advanced physico-chemical experiments: a textbook of practical physical chemistry and calculations. I. Pitman, London, 1964.

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