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Essam, H. M., MN Saad, MS Mabrouk, E. S. Elzanfaly, and S. M. Amer, "Stepwise optimization and sensitivity improvement of green micellar electrokinetic chromatography method to simultaneously determine some fluoroquinolones and glucocorticoids present in various binary ophthalmic formulations", Biomedical Chromatography, vol. 34, no. 11, 2020. AbstractWebsite
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Nebsen, M., and E. S. Elzanfaly, "Stability-Indicating Method and LC–MS-MS Characterization of Forced Degradation Products of Sofosbuvir", Journal of Chromatographic Science, vol. 54, issue 9, pp. 1631-1640, 2016.
Soudi, A. T., O. G. Hussein, E. S. Elzanfaly, H. E. Zaazaa, and M. Abdelkawy, "Stability indicating tlc–densitometric method for determination of alcaftadine in presence of its degradation products and dosage form preservatives", Research Journal of Pharmacy and Technology, vol. 13, no. 11, pp. 5171-5176, 2020. AbstractWebsite
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Elzanfaly, E. S., E. A. Amer, S. A. Galal, and H. E. Zaazaa, "Stability Indicating Spectrophotometric Methods for the Determination of Oxetacaine in the Presence of Its Hydrolytic and Oxidative Degradation Products", Der Pharma Chemica, vol. 8, issue 22, pp. 32-37, 2016. oxetacaine_2016.pdf
Salem, M. Y., E. S. El-zanfaly, M. F. El-Tarras, and M. G. El-Bardicy, "Stability indicating methods for the determination of metoclopramide and vitamin B6 simultaneously in a mixture form", Bull. Fac. Pharm. Cairo University , vol. 41, issue 1, pp. 1-10, 2003.
Zaazaa, H. E., E. S. Elzanfaly, A. T. Soudi, and M. Y. Salem, "SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF TWO COFORMULATED DRUGS WITH HIGHLY DIFFERENT CONCENTRATIONS. APPLICATION ON VILDAGLIPTIN AND METFORMIN HYDROCHLORIDE", JOURNAL OF APPLIED SPECTROSCOPY, vol. 83, issue 1, pp. 154-157, 2016.
Zaazaa, H. E., E. S. Elzanfaly, A. T. Soudi, and M. Y. Salem, "Spectrophotometric method for the determination of two coformulated drugs with highly different concentrations. Application on vildagliptin and metformin hydrochloride", Journal of Applied Spectroscopy, vol. 83, no. 1: Springer US, pp. 137–140, 2016. Abstract
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Ibrahim, M. M., M. B. El-Zeiny, N. K. Ramadan, E. S. Elzanfaly, and K. M. Kelani, "Spectrophotometric determination of meclizine hydrochloride and pyridoxine hydrochloride in laboratory prepared mixtures and in their pharmaceutical preparation ", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 178, pp. 234–238, 2017.
ElZanfaly, E. S., E. A. H. Amer, S. A. B. Galal, and H. E. Zaazaa, "Spectrofluorimetric determination of eptifibatide in human plasma and dosage form", Luminescence, vol. 34, pp. 64–69, 2019. elzanfaly_et_al-2019-luminescence.pdf
Elzanfaly, E. S., A. S.Saad, and A. E. B. A. Elaleem, "A smart simple spectrophotometric method for simultaneous determination of binary mixtures", Journal of Pharmceutical Analysis, vol. 2 , issue 5, 2012.
Elzanfaly, E. S., and S. A. Abdel-Gawad, "Simultaneous quantification of ramipril, glimepiride and metformin in human plasma by ultra-performance liquid chromatography – tandem mass spectrometry", Journal of Applied Pharmaceutical Science , vol. 7, issue 7, pp. 62-69, 2017. metformin_2017.pdf
Boltia, S. A., A. T. Soudi, E. S. Elzanfaly, and H. E. Zaazaa, "Simultaneous Quantification of Chlorpheniramine, Phenylephrine, Guaifenesin in Presence of Preservatives with Detection of Related Substance Guaiacol in their Cough Syrup by RP-HPLC and TLC-Densitometric Methods ", Journal of Chromatographic Science, vol. 57, issue 6, pp. 552–559, 2019.
Elzanfaly, E. S., A. S. Saad, and A. - E. B. Abd-Elaleem, "Simultaneous determination of retinoic acid and hydroquinone in skin ointment using spectrophotometric technique (ratio difference method)", Saudi Pharmaceutical Journal, vol. 20, pp. 249–253, 2012.
Soudi, A. T., O. G. Hussein, E. S. Elzanfaly, H. E. Zaazaa, and M. Abdelkawy, "Simultaneous determination of phenazopyridine HCl and trimethoprim in presence of phenazopyridine HCl impurity by univariate and multivariate spectrophotometric methods - Quantification of phenazopyridine HCl impurity by univariate methods", Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, vol. 239, 2020. AbstractWebsite
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Boltia, S. A., A. T. Soudi, E. S. Elzanfaly, and H. E. Zaazaa, "Simultaneous determination of paracetamol, orphenadrine citrate and caffeine ternary mixture by different spectrophotometric methods", Journal of Applied Spectroscopy, vol. 86, issue 4, pp. 1-9, 2019.
Salem, M. Y., E. S. Elzanfaly, M. F. El-Tarras, and M. G. El-Bardicy, "Simultaneous determination of domperidone maleate and cinnarizin in a binary mixture form by derivative spectrophotometry, partial least squares and principal component regression", Journal of Analytical and Bioanalytical Chem, vol. 30, issue 1, pp. 21-33, 2002.
Salem, M. Y., E. S. Elzanfaly, M. G. El-Bardicy, and M. F. El-Tarras, "Simultaneous determination of domperidone maleate and cinnarizin in a binary mixture form by derivative ratio spectrophotometry and classical least squares calibration. ", Journal of Pharmaceutical and Biomedical Analysis, vol. 30, issue 1, pp. 21-33, 2002.
Hassan, S. A., N. Ibrahim, E. S. Elzanfaly, and A. E. El Gendy, "Simultaneous Determination of Amlodipine and Olmesartan Using HPLC with Fluorescence Detection", Pharmaceutical Chemistry Journal, vol. 55, no. 2, pp. 206-212, 2021. AbstractWebsite
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Tarek, M., E. S. Elzanfaly, S. M. Amer, and H. A. A. Wagdy, "Selective analysis of Nadifloxacin in human plasma samples using a molecularly imprinted polymer-based solid-phase extraction proceeded by UPLC-DAD analysis", Microchemical Journal , vol. 158, pp. 105162, 2020.