Publications

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2017
Lotfy, H. M., yasmin fayez, shereen mostafa, nesma ahmoud, and mostafa abdelaty, "Evaluation of graphical and statistical representation of analytical signals of spectrophotometric methods", spectrochimica acta, vol. 184, pp. 61-70, 2017. spectrochimica_acta.pdf
hayam lotfy, yasmin fayez, adel magdy, and christine kamal, "Novel Stability-Indicating Chemometric-Assisted Spectrophotometric Methods for the Determination of Chlordiazepoxide and Clidinium Bromide in the Presence of Clidinium Bromide’s Alkali-Induced Degradation Product", aoac, vol. 101, 2017. 7-_proof_chemo_aoac_1.pdf
hayam lotfy, yasmin fayez, adel magdy, and christine kamal, "Novel Stability-Indicating Chemometric-Assisted Spectrophotometric Methods for the Determination of Chlordiazepoxide and Clidinium Bromide in the Presence of Clidinium Bromide’s Alkali-Induced Degradation Product", aoac, vol. 101, 2017. 7-_proof_chemo_aoac_1.pdf
hayam lotfy, yasmin fayez, adel magdy, and christine kamal, "Validated Stability‑Indicating Chromatographic Methods for the Determination of Chlordiazepoxide and Clidinium Bromide in the Presence of its Alkali‑Induced Degradation Product: Kinetic Study", chromatographia, vol. 80, pp. 911-922, 2017. chromatographia_christine.pdf
2016
yasmin fayez, N. Mostafa, joliana fawzy, and A. E. Aziz, Comparative Study of Four Ion Selective Membrane Electrodes for Potentiometric Determination of Ivabradine Hydrochloride in Pharmaceutical Formulations and Plasma, , 2016. joliana.pdf
yasmin fayez, hayam lotfy, adel michael, and christine kamal, "Comparative study of the resolution efficiency of HPLC and HPTLCdensitometric methods for the analysis of mebeverine hydrochloride and chlordiazepoxide in their binary mixture", European Journal of Chemistry, vol. 7, issue 3, pp. 315-321, 2016. 1468-11034-1-pb-1.pdf
yasmin fayez, hayam lotfy, eman morgan, and M. Abdelkawy, Comparative Study of the Spectral Resolution Efficiency of the Recently Developed and Conventional Spectrophotometric Methods in the Analysis of Severely Overlapped Zero-Order Absorption Spectra with the Same Geometrical Features, , 2016. eman_morgan.pdf
Fayez, Y. M., mohammed refaat, zeinab goda, and mostafaa abdelaty, "Comparative study on four spectrophotometric methods manipulating ratio spectra for the simultaneous determination of binary mixture of diflucortolone valerate and isoconazole nitrate", Bulletin of Faculty of Pharmacy, Cairo University, vol. 54, issue 1, pp. 39-47, 2016. lbhth_lkhms.pdf
yasmin fayez, mohammed refaat, zeinab goda, and mostafaa abdelaty, "HPLC and TLC chromatographic methods for simultaneous determination of binary mixture of isoconazole nitrate and diflucortolone valerate", Bulletin of Faculty of Pharmacy, Cairo University, vol. 54, issue 1, pp. 33-37, 2016. lbhth_lsds.pdf
yasmin fayez, and M. Hegazy, "Micellar Electrokinetic Chromatography (MEKC) with Multiresponse Chemometric Optimization for the Determination of Hydrochlorothiazide and Coformulated Antihypertensives in the Presence of Hydrochlorothiazide Major Impurity", chromatographic science, vol. 54, issue 6, 2016. lbhth_lsb.pdf
yasmin fayez, hayam lotfy, adel michael, and christine kamal, "Simultaneous determination of mebeverine hydrochloride and chlordiazepoxide in their binary mixture using novel univariate spectrophotometric methods via different manipulation pathways", spectro chimica acta, vol. 155, pp. 11-20, 2016. lbhth_lrb.pdf
yasmin fayez, hayam lotfy, adel michael, and christine kamal, "Simultaneous determination of mebeverine hydrochloride and chlordiazepoxide in their binary mixture using novel univariate spectrophotometric methods via different manipulation pathways", spectro chimica acta, vol. 155, pp. 11-20, 2016. lbhth_lrb.pdf
yasmin fayez, N. Mostafa, joliana fawzy, and A. E. Aziz, "Validated Stability Indicating Chromatographic Methods for Determination of IvabradineHydrochloride in the Presence of Its Acidic Degradation Product", International Journal of Research and Reviews in Pharmacy and Applied sciences, vol. 6, issue 1, pp. 1370-1380, 2016. joliana.pdf
2015
MA, H., and F. YM, "Mean centering of ratio spectra and concentration augmented classical least squares in a comparative approach for quantitation of spectrally overlapped bands of antihypertensives in formulations.", spectro chimica acta, vol. 5, issue 140, pp. 210-215, 2015.
2014
h.moustafa, and y fayez, "Novel Spectrophotometric Methods Manipulating Ratio Spectra for Simultaneous Determination of Binary Mixtures with Sever Overlapping Spectra: A Comparative Study", spectro chimica acta, vol. 17, issue 133, pp. 759-766, 2014.
fayez Y>M, "Simultaneous determination of some anti-hypertensive drugs in their binary mixture by novel spectrophotometric methods.", spectro chimica acta, vol. 11, issue 132, pp. 446-451, 2014.
2012
Fayez, Y. M., and samah abbas, - Stability indicating methods for determination of naftidrofuryl oxalate, , 2012.
S., A. S., H. E. Zaazaa, M. R.El-Ghobashy, Y. M. Fayez, and S. A. Fattah, ""Application of membrane-selective electrode for the determination of naftidrofuryl oxalate in the presence of its alkaline degradant in tablets and plasma", Portugaliae Electrochimica Acta, vol. 30, issue 3, pp. 177-188, 2012.
Fayez, Y. M., samah abas, and mohammed refaat, application of membrane-selective electrodes for the determination of naftidrofuryl oxalate in the presence of its alkaline degradant in tablets and plasma, , 2012.
Fayez, Y. M., samah abas, and mohammed refaat, application of membrane-selective electrodes for the determination of naftidrofuryl oxalate in the presence of its alkaline degradant in tablets and plasma, , 2012.
S., A. S., H. E. Zaazaa, M. R.El-Ghobashy, Y. M. Fayez, and S. A. Fattah, "Stability indicating methods for determination of naftidrofuryl oxalate", Analytical chemistry:An Indian Journal, vol. 11, issue 11-12, pp. 239-334, 2012.
S., A. S., H. E. Zaazaa, M. R.El-Ghobashy, Y. M. Fayez, and S. A. Fattah, "Stability indicating methods for determination of naftidrofuryl oxalate", Analytical chemistry:An Indian Journal, vol. 11, issue 11-12, pp. 239-334, 2012.
2009
Abbas, S. S., H. E.Zaazaa, M. R.El-Ghobashy, and Y. M. Fayez, ""Stability indicating methods for determination of nafronyl oxalate", Analytical chemistry:An Indian Journal, vol. 8, issue 4, pp. 613-620, 2009.
Abbas, S. S., H. E. Zaazaa, M. R.El-Ghobashy, Y. M. Fayez, and S. A. Fattah, ""Stability indicating methods for determination of ziprasidone Hydrochloride", Analytical chemistry:An Indian Journal, vol. 8, issue 2, 2009.
2006
Abbas, S. S., Y. M. Fayez, and L. A. E. Fattah, "Stability Indicating Methods for determination of Donepezil Hydrochloride according to ICH Guidelines", Chem. Pharm. Bull. (Japan), vol. 54, issue 10, pp. 1447-1450, 2006.
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