Lotfy, H. M., S. S. Saleh, and C. M. El-Maraghy, "Advanced approaches for the treatment and amplification of weakspectral signals produced by critical concentrations in whitemulticomponent systems", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , vol. 224, pp. 117339, 2020.
Lotfy, H. M., and Nesma.M.Fahmy, "Coupling of liquid-liquid extraction and mathematical filtrationtechniques for the separation and quantification of five components insemisolid dosage form with severely overlapped spectra", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 235, pp. 118299, 2020.
Lotfy, H. M., M. S. Elshahed, and D. Mohamed, "The concept of Relative Absorptivity Distribution for enhancingdisbanding power of spectrophotometric technique to resolveco-formulated tablets: A tool for purity index and uniformity assessment", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 239 , vol. 239, pp. 118551, 2020.
M.Lotfy, H., M. K. A. Rahman, S. A. F. Weshahy, and D. A.Ahmed, "Smart Spectral Processing of Data for the estimation of Commonly Used Over-the-counter (OTC) Co-formulated drug; Pseudoephedrine hydrochloride and Ibuprofen", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. Volume 223, 5 December 2019, , issue 117322, pp. 1-10, 2019.
M.Lotfy, H., and S. S.Salah, "Investigating Advanced Approaches Based on Iso-Absorptivity Coefficient in Unresolved Spectral Signals of Binary Mixtures", Journal of Analytical Methods in Chemistry , vol. 1-10, pp. Article ID 7924821, 2019.
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, pp. 167-178, 2108.
Lotfy, H. M., and S. S. Saleh, "Testing the purity of spectral profiles: Finger-print resolution of complex matrices and extraction of absorbance signals", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 205, pp. 160-169, 2108.
Lotfy, H. M., and S. S. Saleh, "ADVANCED AMPLITUDE CENTERING AS AN INVIGORATING MANIPULATION FOR UNIFIED WAVELENGTH SPECTRAL RESOLUTION OF TERNARY MIXTURES", International Journal of Pharmacy and Pharmaceutical Sciences, vol. Vol 9,, , issue Issue 5, pp. 43-50, 2017. advanced_amplitude_modulation_16960-87563-2-pb_1_1.pdf