Publications

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A
AbdElHamid, G., M. R. Elghobashy, E. S. Elzanfaly, S. M. Amer, and S. Z. ElKhateeb, "Ion Selective Membrane Electrodes for Stability Indicating Determination of Amisulpride", Anal. Bioanal. Electrochem. , vol. 4, issue 6, pp. 579 – 592, 2012.
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Bassuoni, Y. F., E. S. Elzanfaly, H. A. M. Essam, H. E. Zaazaa, E. S. Elzanfaly, and H. M. Allah Essam, "Ion selective electrode approach for in-line determination of benzydamine hydrochloride in different matrices of pharmaceutical industry", Analytical& Bioanalytical Electrochemistry, vol. 9, no. 1, pp. 65–79, 2017. Abstract
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Bassuoni, Y. F., E. S. Elzanfaly, H. M. Essam, and H. E. Zaazaa, "Ion Selective Electrode Approach for In-line Determination of Benzydamine Hydrochloride in Different Matrices of Pharmaceutical Industry ", Anal. Bioanal. Electrochem, vol. 9, issue 1, pp. 65-79, 2017.
E
El-Setouhy, D. A., A. B. Ibrahim, M. M. Amin, O. M. Khowessah, and E. S. Elzanfaly, "Intranasal haloperidol-loaded miniemulsions for brain targeting: evaluation of locomotor suppression and in-vivo biodistribution", European Journal of Pharmaceutical Sciences, vol. 92: Elsevier, pp. 244–254, 2016. Abstract
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El-Setouhy, D. A., A. B. Ibrahim, M. M. Amin, O. M. Khowessah, and E. S. Elzanfaly, "Intranasal haloperidol-loaded miniemulsions for brain targeting: Evaluation of locomotor suppression and in-vivo biodistribution", European Journal of Pharmaceutical Sciences, vol. 92, pp. 244-254, 2016.
ElHamid, G. A., M. R. Elghobashy, E. S. ElZanfaly, S. M. Amer, and S. Z. ElKhateeb, "Ion selective membrane electrodes for stability-indicating determination of amisulpride", Anal Bioanal Electrochem, vol. 4, pp. 579–592, 2012. Abstract
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ElHamid, G. A., M. R. Elghobashy, E. S. ElZanfaly, S. M. Amer, and S. Z. ElKhateeb, "Ion selective membrane electrodes for stability-indicating determination of amisulpride", Anal Bioanal Electrochem, vol. 4, pp. 579–592, 2012. Abstract
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Elzanfaly, E. S., Y. F. Bassuoni, H. A. M. Essam, and H. E. Zaazaa, "Ion selective membrane electrodes for determination of cetrimide in pure form and in pharmaceutical formulations", Anal Bioanal Electrochem, vol. 7, pp. 401–414, 2015. Abstract
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Elzanfaly, E. S., Y. F. Bassuoni, H. A. M. Essam, and H. E. Zaazaa, "Ion Selective Membrane Electrodes for Determination of Cetrimide in Pure form and in Pharmaceutical Formulations ", Anal. Bioanal. Electrochem. , vol. 7 , issue 4, pp. 401-414, 2015. cetrimide_ise_2015.pdf
Elzanfaly, E. S., E. A. Amer, S. A. Galal, and H. E. Zaazaa, ISSN 0975-413X CODEN (USA): PCHHAX, , Submitted. Abstract
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Elzanfaly, E. S., S. A. Hassan, M. Y. Salem, and B. A. El-Zeany, "In-line potentiometric monitoring of dissolution behavior of verapamil hydrochloride versus traditional pharmacopeial method: A comparative study", Sensors and Actuators B: Chemical, vol. 228: Elsevier, pp. 587–594, 2016. Abstract
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Elzanfaly, E. S., S. A. Hassan, M. Y. Salem, and B. A. El-Zeany, "In-line potentiometric monitoring of dissolution behavior ofverapamil hydrochloride versus traditional pharmacopeial method: Acomparative study", Sensors and Actuators, vol. B 228, pp. 587–594, 2016.
Elzanfaly, E. S., H. E. Zaazaa, and H. A. Merey, "Ion Selective Phosphotungestate and β-cyclodextrin Based Membrane Electrodes for Stability-Indicating Determination of Midodrine Hydrochloride", Acta Chim. Slov., vol. 60 , issue 2, pp. 256–262, 2013. Abstract

This paper reports the construction and evaluation of two ion selective electrodes for the determination midodrine hydrochloride (MD) by direct potentiometry in pure drug substance and in tablet formulations. Precipitation based technique was used for fabrication of the first membrane sensor (sensor 1) using phosphotungestate (PT) and dioctylphthalate (DOP) as cation exchanger and solvent mediator, respectively. β-cyclodextrin (β-CD)-based technique with PT as a fixed anionic site in PVC matrix was used for fabrication of the second membrane sensor (sensor 2). The proposed sensors showed fast, stable Nernstian responses of 54 and 56 mV/decade for sensors 1 and 2, respectively, across a relatively wide MD concentration range (1 × 10–4 to 1 × 10–1 mol/L and 5 × 10–5 to 1 × 10–1 mol/L for sensor 1 and 2, respectively) in the pH range of 5–7. Sensor 1 and sensor 2 can be used for three and two weeks, respectively without any measurable change in sensitivity. The suggested electrodes succeeded to determine intact MD in the presence of up to 10% of its degradation product and displayed good selectivity in presence of common inorganic and organic species.

Elzanfaly, E. S., and M. Nebsen, "Ion selective membrane electrodes for stability indicating determination of benoxinate hydrochloride in pure form and in drug product", Anal Bioanal. Electochem, vol. 5, no. 2, pp. 166–177, 2013. Abstract
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R
Ramadan, N. K., K. M. Kelani, M. M. Ibrahim, E. S. Elzanfaly, Abdel-Rahman, and K. Mohamed, Ion Selective Membrane Electrodes for the Determination of Mixture of Analgin and Camylofin Dihydrochloride in their Pure Form and Combined Dosage Form, : UNIV TEHRAN, FAC CHEMISTRY, 2017. Abstract
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S
Saad, A. S., N. S. Ismail, N. S. Gaber, and E. S. Elzanfaly, "Introducing a Polymeric Ion Exchanger as a Modifier for Carbon-Paste Potentiometric Sensors", Journal of The Electrochemical Society, vol. 168, no. 1: IOP Publishing, pp. 017504, 2021. Abstract
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Saad, A. S., N. S. Ismail, N. S. Gaber, and E. S. Elzanfaly, "Introducing a polymeric ion exchanger as a modifier for carbon- paste potentiometric sensors", Journal of the Electrochemical Society, vol. 168, no. 1, 2021. AbstractWebsite
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Sedik, G., M. Mostafa, N. AbdelAllah, and E. Elzanfaly, "Integrated Analytical Techniques to Investigate the Effect of the Freezing/Thawing Cycles on the Non-Replicating Recombinant Chimpanzee Adenovirus Viral Vector Covid-19 Vaccine", Thawing Cycles on the Non-Replicating Recombinant Chimpanzee Adenovirus Viral Vector Covid-19 Vaccine, Submitted. Abstract
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