Publications

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2023
Fares, M. Y., N. S. Abdelwahab, M. A. Hegazy, M. M. Abdelrahman, and G. M. El-Sayed, "Comparative chemometric manipulations of UV-spectrophotometric data for the efficient resolution and determination of overlapping signals of cyclizine and its impurities in its pharmaceutical preparations", Journal of AOAC International, vol. 106, issue 1: Oxford University Press, pp. 228-238, 2023. Abstract
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ElMously, D. A., N. M. Mostafa, N. Y. Hassan, and G. M. El-Sayed, "Development of Different Separation Techniques for Impurity Profiling of Neostigmine Methylsulfate: A Comparative Study", Journal of Chromatographic Science, vol. 61, issue 10: Oxford University Press, pp. 963-971, 2023. Abstract
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2022
ElMously, D. A., N. M. Mostafa, N. Y. Hassan, and G. M. El-Sayed, "Different Approaches in Manipulating Ratio Spectra for Analyzing Amlodipine Besylate and Irbesartan Combination", Journal of AOAC International, vol. 105, issue 5: Oxford University Press, pp. 1219-1227, 2022. Abstract
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Fares, M. Y., N. S. Abdelwahab, M. A. Hegazy, M. M. Abdelrahman, A. M. Mahmoud, and G. M. El-Sayed, "Nanoparticle-enhanced in-line potentiometric ion sensor for point-of-care diagnostics for tropicamide abuse in biological fluid", Analytica Chimica Acta, vol. 1192: Elsevier, pp. 339350, 2022. Abstract
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2020
Abdelrahman, M. M., M. Y. Fares, N. S. Abdelwahab, G. E. M. Sayed, and M. A. Hegazy, "Determination of the abused intravenously self-administered madness drops (Tropicamide) by liquid chromatography in rat plasma; an application to pharmacokinetic study and greenness profile assessment", Microchemical Journal, vol. 159, 2020. michel_microchemical_10-2020.pdf
Abdelrahman, M. M., N. S. Abdelwahab, M. A. Hegazy, M. Y. Fares, and G. M. El-Sayed, "Determination of the abused intravenously self-administered madness drops (Tropicamide) by liquid chromatography in rat plasma; an application to pharmacokinetic study and greenness profile assessment", Microchemical Journal, vol. 159: Elsevier, pp. 105582, 2020. Abstract
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Youssef, S. H., D. Mohamed, M. A. Hegazy, and G. M. El-Sayed, "Greenness evaluation of different chromatographic approaches for the determination of dextromethorphan, phenylephrine & brompheniramine in their pharmaceutical formulation", Microchemical Journal, vol. 157, 2020. souha_microchemical_j_4-2020.pdf
El‐Sayed, G. M., D. I. N. A. E. L. A. MOUSLY, N. M. Mostafa, N. Y. Hassan, and A. M. Mahmoud, "Neostigmine Potentiometric Sensors Based on Microfabricated Copper Electrodes Using Poly(3-octylthiophene) as an Ion-to-Electron Transducer Layer", Journal of The Electrochemical Society, vol. 167, 2020. dina_ecs_neostigmine.pdf
2019
El-Sayed, G. M., M. A. Al-Ghobashy, Ali K. Attia, and S. M. Kamal, "Nanoparticle-Enhanced Potentiometric Ion-Selective Electrodes for Therapeutic Drug Monitoring of Linezolid", Journal of The Electrochemical Society, vol. 166, issue 14, pp. B1312-B1320, 2019.
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2018
Sayed, S., B. A. Habiba, and G. M. Elsayed, "tri-block co-polymer nanoparticles for enhancement of oral delivery of felodipine: preparation, in vitro characterization and exo vivo permeation", Journal of Liposome Research, vol. 28, issue 3, 2018. liposome_research.pdf
Attia, A. K., M. A. Al-Ghobashy, G. M. El-Sayed, and S. M. Kamal, "Simultaneous determination of linezolid, meropenem and theophylline in plasma", Data in Brief, vol. 21, pp. 150-153, 2018. simultaneous_determination_of_linezolid_meropenem_.pdf
2017
Mostafa, N. M., G. M. Elsayed, N. Y. Hassan, and D. I. N. A. E. L. A. MOUSLY, "Development and validation of Eco-friendly Liquid Chromatographic and Spectrophotometric Methods for Simultaneous Determination of Coformulated Drugs: Phenylephrine Hydrochloride and Prednisolone Acetate", AOAC International, vol. 100, issue 6, pp. 1761-1770, 2017. aoac.pdf
2013
Elsayed, G. M., M. Nebsen, M. Abdelkawy, and S. Z. ElKhateeb, "Determination of Ofloxacin and Dexamethasone in Dexaflox eye drops through different ratio spectra manipulating methods", Bulletin of Faculty of Pharmacy, Cairo University, vol. 51, pp. 175-184, 2013.
Elsayed, G. M., M. Nebsen, M. Abdelkawy, and S. Z. ElKhateeb, "Ion selective membrane electrodes for the determination of Xylometazoline Hydrochloride in rabbit aqueous humore using 2-hydroxy propyl beta cyclodextrine and calix[6]arene as ionophores", Analytical and bioanalytical electrochemistry, vol. 5, issue 3, pp. 368-380, 2013.
2006
Elsayed, G. M., L. E. Abdel-Fattah, and M. A. Shehata, "Utilization of 4-Chloro-7-Nitro-2,1,3-Benzoxadiazole (NBD-Cl) for Kinetic Spectrophotometric Assay of Befunolol Hydrochloride in Its Pharmaceutical Formulation", Journal of AOAC International, vol. 89, issue 5, pp. 646-650, 2006.