Lotfy, H. M., and Y. R. Omran, "Novel absorptivity centering method utilizing normalized and factorized spectra for analysis of mixtures with overlapping spectra in different matrices using built-in spectrophotometer software", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 200, issue 1386-1425, pp. 167–178, 2018.
Lotfy, H. M., M. A. M. 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.
El-Rahman, M. K. A., H. M. Lotfy, M. A. M. Hegazy, M. R. Rezk, and Y. R. Omran, "A Novel Sensor for Determination of Dexamethasone Disodium Phosphate in Different Pharmaceutical Formulations", Analytical & Bioanalytical Electrochemistry, vol. 7, issue 6, pp. 752-763, 2015.
Abdel-Moety, E. M., H. M. Lotfy, N. S. Khalil, and Y. Rostom, "Application of 3-methyl benzothiazoline-2-one hydrazone as a chromogen for the spectrophotometric determination of oriental fruit fly’s synthetic attractant", Analytical Chemistry An Indian Journal, vol. 9, issue 1, 2010. ME. pdf
Abdel-Moety, E. M., H. M. Lotfy, N. S. Khalil, and Y. Rostom, "ANALYTICAL STUDY OF TWO COMMERCIAL SEX PHEROMONE LURES FOR MONITORING MALES OF COTTON LEAFWORM (CLW) AND SPINY BOLLWORM (SBW) IN EGYPT", ARPN Journal of Agricultural and Biological Science, vol. 7, issue 11, pp. 912-926, 2012. CLW & SBW.pdf
Lotfy, 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, issue 21, pp. 197-207, 2014.
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.
Abdel-Moety, E. M., H. M. Lofty, and Y. R. Omran, "TRACE DETERMINATION OF RED PALM WEEVIL, Rhynchophorus ferrugineus, PHEROMONE AT TRAPING LOCATIONS UNDER EGYPTIAN CLIMATE", International Journal of Agricultural and Food Science, vol. 2, issue 2, pp. 44-50, 2012. RPW.pdf