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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.
Elzanfaly, E. S., E. A. Amer, S. A. Galal, and H. E. Zaazaa, "Stability indicating methods for selective determination of Oxetacaine in the presence of its degradation products", Bulletin of Faculty of Pharmacy, Cairo University, vol. 56, no. 2: No longer published by Elsevier, pp. 199–205, 2018. Abstract
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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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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: 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.
Ibrahim, M. M., E. S. Elzanfaly, M. B. El-Zeiny, N. K. Ramadan, 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: Elsevier, pp. 234–238, 2017. Abstract
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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., 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, no. 1, pp. 64–69, 2019. Abstract
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Galal, S. A. B., E. S. ElZanfaly, E. M. Hussien, E. A. H. Amer, and H. E. Zaazaa, "Spectrofluorimetric determination of butylated hydroxytoluene and butylated hydroxyanisole in their combined formulation: application to butylated hydroxyanisole residual analysis in milk and butter", Scientific Reports, vol. 14, no. 1: Nature Publishing Group UK London, pp. 4498, 2024. Abstract
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Ibrahim, M. M., K. M. Kelani, N. K. Ramadan, E. S. ElZanfaly, and A. S. Saad, "Solid Contact Potentiometric Sensor for The Assay of Loperamide Hydrochloride in Its Pharmaceutical Formulation and Spiked Plasma Samples", Analytical and Bioanalytical Electrochemistry, vol. 14, no. 10: Analytical and Bioanalytical Electrochemistry is an international scientific …, pp. 904–920, 2022. Abstract
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Ibrahim, M. M., K. M. Kelani, N. K. Ramadan, and E. S. ElZanfaly, "Smartphone as a portable detector for thin-layer chromatographic determination of some gastrointestinal tract drugs", ACS omega, vol. 7, no. 27: American Chemical Society, pp. 23815–23820, 2022. Abstract
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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., A. S. Saad, and B. Abd Elaziz, "A smart simple spectrophotometric method for simultaneous determination of binary mixtures", Journal of pharmaceutical analysis, vol. 2, no. 5: Elsevier, pp. 382–385, 2012. Abstract
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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, no. 7, pp. 062–069, 2017. Abstract
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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.
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, no. 6: Oxford University Press, pp. 552–559, 2019. Abstract
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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.
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, no. 3: Elsevier, pp. 249–253, 2012. Abstract
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Soudi, A. T., O. G. Hussein, E. S. Elzanfaly, H. E. Zaazaa, and M. A. Kawy, "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: Elsevier, pp. 118516, 2020. Abstract
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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: Springer US, pp. 731–739, 2019. Abstract
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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.
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