untitled European Journal of Chemistry 5 (4) (2014) 695‐696 European Journal of Chemistry ISSN 2153‐2249 (Print) / ISSN 2153‐2257 (Online)  2014 Eurjchem Publishing ‐ Printed in the USA http://dx.doi.org/10.5155/eurjchem.5.4.695‐696.1119 European Journal of Chemistry Journal homepage: www.eurjchem.com Erratum to ‘‘Photostability studies on gemifloxacin and lomefloxacin in bulk powder and dosage forms” [Eur. J. Chem. 5 (1) (2014) 73‐80] Marwa Hosny Tammam Drug Bioavailability Center, National Organization for Drug Control and Research (NODCAR), Giza, 35521, Egypt *Corresponding author at: Drug Bioavailability Center, National Organization for Drug Control and Research (NODCAR), Giza, 35521, Egypt. Tel.: +2.011.12289346. Fax: +2.02.33379445. E‐mail address: tammam.marwa@gmail.com (M.H. Tammam). ERRATUM INFORMATION ABSTRACT DOI: 10.5155/eurjchem.5.4.695‐696.1119 Received: 09 July 2014 Accepted: 13 July 2014 Online: 31 December 2014 KEYWORDS Erratum to ‘‘Photostability studies on gemifloxacin and lomefloxacin in bulk powder and dosage forms” [Eur. J. Chem. 5 (1) (2014) 73‐80]. HPLC LC‐MS/MS Gemifloxacin Lomefloxacin Photostability Fluoroquinolone drugs ERRATUM We recently published a paper entitled “Photostability studies on gemifloxacin and lomefloxacin in bulk powder and dosage forms” in Eur. J. Chem. 5 (1) (2014) 73‐80 [1]. We provide the following errata for the above‐mentioned paper. The authors would like to replace forth sentence (on page 76, Section 3.2.) with “The mass spectra of GFLX solution after illumination exhibited a complete degradation of the drug solution and formation of four degradation products with molecular masses as follows: 335 (M‐∆, CH3), 301 (M‐F, ‐∆, CH2NH2), 294 (M‐F, COOH, CH3O) and 289 (M‐∆, CH3, COOH) for Degradation 1 (Deg. 1), Degradation 2 (Deg. 2), Degradation 3 (Deg. 3) and Degradation 4 (Deg. 4), respectively (Figure 7B).” due to the several typesetting mistakes. The authors would like to replace Scheme 1 on page 76 with corrected Scheme 1 has been presented below: 696 Tammam / European Journal of Chemistry 5 (4) (2014) 695‐696 N N F OH N O NH2 N O O - F, , CH2-NH2 N N H F OH N O NH2 N HO O CH3,-N NN O NH2 HN - F, COOH, CH3O CH3, COOH,- N N H N O NH2 N HO N N H OH N O N O O F Scheme 1 References [1]. Tammam, M. H. Eur. J. Chem. 2014, 5(1), 73‐80.