Publications

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2016
M.Lotfy, H., and S. S. Saleh, "Recent development in ultraviolet spectrophotometry through the last decade (2006–2016): : A REVIEW ", International Journal of Pharmacy and Pharmaceutical Sciences , vol. Vol 8, , , issue Issue 10, pp. 40-56,, 2016.
Lotfy, H. M., S. G. A. Allaa, Amr H. Shendy, and M. A. Al-Ghobashy, "Simultaneous determination of 200 pesticide residues in honey usinggas chromatography–tandem mass spectrometry in conjunction withstreamlined quantification approach", Journal of Chromatography A, , vol. 1427 , pp. 142–160, 2016.
Lotfy, H. M., Y. M. Fayez, A. M.Michael, and C. K. Nessim, "Simultaneous determination of mebeverine hydrochloride and chlordiazepoxide in their binary mixture using novel univariate spectrophotometric methods via different manipulation pathways", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 155, pp. 11-20, 2016.
Fayez, Y. M., C. K. Nessim, A. M.Michael, and H. M. Lotfy, "Simultaneous determination of mebeverine hydrochloride and chlordiazepoxide in their binary mixture using novel univariate spectrophotometric methods via different manipulation pathways", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 155 , pp. 11–20, 2016.
Lotfy, H. M., M. A. B. D. E. L. - M. Hegazy, M. A. M. EL-Aziz, and laila elsayed abdel fattah, "Stability Indicating Spectrophotometric Methods for Determination of Nicardipine in the Presence of its Alkaline Induced Degradation Products ", International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8 , issue 3, pp. 62-66, 2016.
Lotfy, H. M., M. A. Hegazy, S. Mowaka, and E. H. Mohamed, "Validated spectrophotometric methods for simultaneous determination of Omeprazole, Tinidazole and Doxycycline in their ternary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 153, pp. 321–332, 2016.
M.Lotfy, H., M. A. Hegazy, S. Mowaka, and E. H. Mohamed, "Validated spectrophotometric methods for simultaneous determination of Omeprazole, Tinidazole and Doxycycline in their ternary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy (2016) 321–332, vol. 153 , pp. 321–332, 2016.
2015
M.Lotfy, H., S. M.Tawakkol, N. M.Fahmy, and M. A.Shehata, "A comparative study of novel spectrophotometric resolution techniques applied for pharmaceutical mixtures with partially or severely overlapped spectra", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 136 (2015) 937–952, vol. 136, pp. 937–952, 2015.
Lotfy, H. M., M. A. Hegazy, M. R. Rezk, and Y. R. Omran, "Comparative study of novel versus conventional two-wavelength spectrophotometric methods for analysis of spectrally overlapping binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 148, pp. 328–337, 2015.
Lotfy, H. M., D. Mohamed, and S. Mowaka, "A comparative study of smart spectrophotometric methods for simultaneous determination of sitagliptin phosphate and metformin hydrochloride in their binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 149, pp. 441-451, 2015.
Lotfy, H. M., S. M. Amer, H. E. Zaazaa, and N. S. Mostafa, "A comparative study of the novel spectrophotometric methods versus conventional ones for the simultaneous determination of Esomeprazole magnesium trihydrate and Naproxen in their binary mixture ", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 151, pp. 538–546, 2015.
Salem, H., N. Y. Hassan, H. M. Lotfy, and S. S. Saleh, "Design, Optimization, and Validation of Thin-Layer Chromatography–Densitometry and Chemometry-Assisted Spectrophotometry: A Comparative Study Applied on Quaternary Mixture ", Journal of Planar Chromatography , vol. 28, issue 6, pp. 436–442, 2015.
Noumana, E. G., M. A. Al-Ghobashy, and H. M. Lotfy, "Development and validation of LC–MSMS assay for the determinationof the prodrug dabigatran etexilate and its active metabolites inhuman plasma", Journal of Chromatography B, vol. 989, pp. 37-45, 2015.
Hassan, N. Y., H. M. Lotfy, S. S. Saleh, and H. Salem, "Development of Membrane Electrodes for the Specific Determination of Tetryzoline Hydrochloride in Presence of its Degradation Product in Pharmaceutical Formulations and Biological Fluids ", Anal. Bioanal. Electrochem, vol. 7, issue 1, pp. 75-90 , 2015.
Hegazy, M. A., H. M. Lotfy, M. R. Rezk, and Y. R. Omran, "Novel spectrophotometric determination of chloramphenicol and dexamethasone in the presence of non labeled interfering substances using univariate methods and multivariate regression model updating ", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 140, pp. 600-613, 2015.
Lotfy, H. M., M. A. Hegazy, S. Mowaka, and E. H. Mohamed, "Novel spectrophotometric methods for simultaneous determination of Amlodipine, Valsartan and Hydrochlorothiazide in their ternary mixture ", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 140, pp. 495–508, 2015.
Lotfy, H. M., S. S. Saleh, N. Y. Hassan, and H. Salem, "Novel two wavelength spectrophotometric methods for simultaneous determination of binary mixtures with severely overlapping spectra", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , issue 136, pp. 1786–1796, 2015.
HM, L., A. SM, Z. HE, and M. NS, "Spectrophotometric Methods for Quantitative Determination of Binary Mixture of Naproxen Sodium and Domperidone Maleate", Austin J Anal Pharm Chem. , vol. 2, issue 3, pp. 1044-1051, 2015.
Lotfy, H. M., H. Salem, M. Abdelkawy, and A. Samir, "Spectrophotometric methods for simultaneous determination of betamethasone valerate and fusidic acid in their binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 140, pp. 294–304, 2015.
2014
Lotfy, H. M., "Absorbance subtraction and amplitude modulation as novel spectrophotometric methods for the analysis of binary mixtures ", Int J Pharm Pharm Sci,, vol. Vol 6, issue Issue 1, pp. 735-741, 2014.
Hassan, N. Y., H. M. Lotfy, and S. S. Saleh., "Column Performance Study of Different Variants of Liquid Chromatographic Technique: An Application on Pharmaceutical Ternary Mixtures Containing Tetryzoline ", Journal of Chromatographic Science , vol. doi: 10.1093, pp. 2014, 2014.
Lotfy, H. M., S. S. Saleh, N. Y. Hassan, and H. Salem, "A comparative study of novel spectrophotometric methods based on isosbestic points; application on a pharmaceutical ternary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 126, pp. 112-121, 2014.
Lotfy, H. M., S. S. Saleh, N. Y. Hassan, and H. Salem, "A comparative study of progressive versus successive spectrophotometric resolution techniques applied for pharmaceutical ternary mixtures ", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 132, pp. 239–248, 2014.
Samir, A., H. M. Lotfy, H. Salem, and M. Abdelkawy, "Development and validation of simultaneous spectrophotometric and TLC-spectrodensitometric methods for determination of beclomethasone dipropionate and salbutamol in combined dosage form", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 128, pp. 127-136, 2014. ahmed_spectrochemica_acta_paper.pdf
Lotf, H. M., M. A. Hegazy, M. R. Rezk, and Y. R. Omran, "Novel spectrophotometric methods for simultaneous determination of timolol and dorzolamide in their binary mixture", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 126, pp. 197-207, 2014.