H. Lotfy

发表

Novel spectrophotometric determination of chloramphenicol and dexamethasone in the presence of non labeled interfering substances using univariate methods and multivariate regression model updating.

Mamdouh R. Rezk, M. Hegazy, H. Lotfy, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Ultraviolet spectrophotometric methods for the determination of the minor component presented in fixed-dose pharmaceutical combinations through the last two decades (2000–2020)

A. Sakur, H. Lotfy, Reem H. Obaydo, 2021, Future Journal of Pharmaceutical Sciences.

Coupling of GC-MS/MS to Principal Component Analysis for Assessment of Matrix Effect: Efficient Determination of Ultra-Low Levels of Pesticide Residues in Some Functional Foods

W. Mamdouh, M. Al-Ghobashy, A. Shendy, 2019, Food Analytical Methods.

Real Time Selective Monitoring of the Dissolution Behavior of Pseudoephedrine Sulfate and Loratadine in Their Binary and Ternary Dosage Form by Utilization of In-Line Potentiometric Sensor

M. A. El-Rahman, M. Abdelkawy, H. Lotfy, 2019, Journal of The Electrochemical Society.

TRACE DETERMINATION OF RED PALM WEEVIL, Rhynchophorus ferrugineus, PHEROMONE AT TRAPING LOCATIONS UNDER EGYPTIAN CLIMATE

H. Lotfy, Ezzat M.Abdel-Moety, Y. Rostom, 2012 .

Double-Dip Approach: Simultaneous Dissolution Profiling of Pseudoephedrine and Ibuprofen in a Combined Dosage Form by Ion Selective Electrodes

M. A. El-Rahman, H. Lotfy, S. A. Weshahy, 2018 .

Trade-off efficacy and data processing strategy in the power of spectral resolution of co-formulated antihypertensive pharmaceuticals.

N. Erk, H. Lotfy, Y. Rostom, 2020, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Eco-friendly spectrophotometric evaluation of triple-combination therapies in the treatment strategy of patients suffering from hypertension during coronavirus pandemic – Spectralprint recognition study

M. Abdelkawy, H. Lotfy, H. Marzouk, 2022, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy.

Novel feature extraction approach for achieving potential spectral resolution: Green analytical application on zofenopril calcium and hydrochlorothiazide in their spectrally overlapping binary mixture.

N. Erk, H. Lotfy, Y. Rostom, 2020, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Column performance study of different variants of liquid chromatographic technique: an application on pharmaceutical ternary mixtures containing tetryzoline.

H. Salem, H. Lotfy, N. Hassan, 2015, Journal of chromatographic science.

Developing spectral numerical factor technique for the determination of amlodipine besylate and the latest generation of statins in their new pharmaceutical combination.

N. Erk, H. Lotfy, Y. Rostom, 2019, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Induced mathematical filtration as an innovative strategy for discrimination and estimation of glycemic control drugs in fixed dose combination

H. Lotfy, Ekram H. Mohamed, Ekram H Mohamed, 2020, Heliyon.

Evaluation of the efficiency of continuous wavelet transform as processing and preprocessing algorithm for resolution of overlapped signals in univariate and multivariate regression analyses; an application to ternary and quaternary mixtures.

M. Hegazy, H. Lotfy, S. Mowaka, 2016, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Potentiometric Sensing of Valaciclovir Hydrochloride in the Presence of Its Acid Induced Degradation Product with Real Time Acquisition of the Dissolution Profile from Its Pharmaceutical Formulations

M. A. El-Rahman, M. Abdelkawy, H. Lotfy, 2019, Journal of The Electrochemical Society.

Smart Spectral Processing of Data for the estimation of Commonly Used Over-the-counter (OTC) Co-formulated drug; Pseudoephedrine hydrochloride and Ibuprofen.

M. K. Abd El-Rahman, H. Lotfy, S. A. Weshahy, 2019, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Simultaneous determination of Simvastatin and Sitagliptin in tablets by new univariate spectrophotometric and multivariate factor based methods

M. Hegazy, Sherif A. Abdel-Gawad, H. Lotfy, 2013 .

Novel univariate spectrophotometric determination of the recently released solid dosage form comprising dapagliflozin and saxagliptin via factorized response spectra: Assessment of the average content and dosage unit uniformity of tablets.

D. Mohamed, H. Lotfy, Mona S. Elshahed, 2019, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Determination of Sumatriptan and Zolmitriptan in Presence of Their Corresponding Degradation Products by HPTLC Methods

H. Lotfy, M. Shehata, M. Rezk, 2013, Chromatographia.

Spectrophotometric Determination For the Binary Mixture of Clotrimazole and Dexamethasone in Pharmaceutical Dosage Form

H. Lotfy, Y. Fayez, M. Shehata, 2017 .

Comparative Study of Multivariate and Univariate Determination of Zolmitriptan in the Presence of its Degradation products

H. Lotfy, M. Shehata, M. Rezk, 2015 .

Smart stability-indicating spectrophotometric methods for determination of binary mixtures without prior separation.

H. Lotfy, M. El-Sayed, M. G. El-bardicy, 2008, Journal of AOAC International.

Stability-indicating electrochemical methods for the determination of meclophenoxate hydrochloride and pyritinol dihydrochloride using ion-selective membrane electrodes.

H. Lotfy, M. El-Sayed, M. G. El-bardicy, 2007, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Comparative study of novel versus conventional two-wavelength spectrophotometric methods for analysis of spectrally overlapping binary mixture.

M. Hegazy, H. Lotfy, Yasmin Rostom Omran, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Development and validation of LC-MS/MS assay for the determination of Butoconazole in human plasma: Evaluation of systemic absorption following topical application in healthy volunteers

M. Al-Ghobashy, H. Lotfy, Eman G. Nouman, 2017 .

Comparative Study of the Resolution Efficiency of High-performance Liquid Chromatographic and Chemometrics-assisted UV Spectrophotometric Methods: Application on Pharmaceutical Mixtures

H. Lotfy, M. Shehata, S. Tawakkol, 2016 .

Simultaneous determination of 200 pesticide residues in honey using gas chromatography-tandem mass spectrometry in conjunction with streamlined quantification approach.

M. Al-Ghobashy, S. Gad Alla, A. Shendy, 2016, Journal of chromatography. A.

Development and validation of LC-MSMS assay for the determination of the prodrug dabigatran etexilate and its active metabolites in human plasma.

M. Al-Ghobashy, H. Lotfy, Eman G. Nouman, 2015, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Spectrophotometric resolution of the severely overlapped spectra of clotrimazole with dexamethasone in cream dosage form by mathematical manipulation steps.

H. Lotfy, Y. Fayez, M. Shehata, 2018, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Comparative study of the efficiency of computed univariate and multivariate methods for the estimation of the binary mixture of clotrimazole and dexamethasone using two different spectral regions.

H. Lotfy, Y. Fayez, M. Shehata, 2018, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Validated spectrophotometric methods for simultaneous determination of Omeprazole, Tinidazole and Doxycycline in their ternary mixture.

M. Hegazy, H. Lotfy, S. Mowaka, 2016, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Analytical tools for greenness assessment of chromatographic approaches: Application to pharmaceutical combinations of Indapamide, Perindopril and Amlodipine

N. Erk, H. Lotfy, Y. Rostom, 2020 .

Comparative study of novel spectrophotometric methods manipulating ratio spectra: an application on pharmaceutical ternary mixture of omeprazole, tinidazole and clarithromycin.

H. Lotfy, Maha Abdel-Monem Hagazy, 2012, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Development and validation of a modified QuEChERS protocol coupled to LC-MS/MS for simultaneous determination of multi-class antibiotic residues in honey.

M. Al-Ghobashy, S. Gad Alla, A. Shendy, 2016, Food chemistry.

Determination of tetraconazole and diniconazole fungicide residues in tomatoes and green beans by capillary gas chromatography.

H. Lotfy, M. M. Amer, M. Shehata, 2007, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Evaluation of graphical and statistical representation of analytical signals of spectrophotometric methods.

H. Lotfy, Y. Fayez, M. Shehata, 2017, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

STABILITY-INDICATING HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC DETERMINATION OF FLUCONAZOLE IN THE PRESENCE OF ITS OXIDATIVE DEGRADATION PRODUCT - KINETIC AND STRESS STUDY

H. Lotfy, H. H. Monir, Abdel-Aziz E. Abdel-Aleem, 2012 .

Coupling of Physical and Chromatographic Separation for Analyzing Cream Containing Miconazole, Mometasone Furoate and Gentamicin Sulphate.

H. Lotfy, Y. Fayez, M. Shehata, 2022, Journal of chromatographic science.

Synchronous UPLC Resolution of Aceclofenac and Diacerin in Their Powdered Forms and Matrix Formulation: Stability Study.

M. K. Abd El-Rahman, H. Lotfy, S. A. Weshahy, 2020, Journal of chromatographic science.

Smart Spectrophotometric Methods for Concurrent Determination of Furosemide and Spironolactone Mixture in Their Pharmaceutical Dosage Forms

H. Lotfy, Sara El-Hanboushy, M. Abdelkawy, 2022, Brazilian Journal of Pharmaceutical Sciences.

Investigation of the profile and kinetics of degradation of rivaroxaban using HPLC, TLC-densitometry and LC/MS/MS: Application to pre-formulation studies

M. Al-Ghobashy, M. Abdallah, H. Lotfy, 2015 .

STABILITY INDICATING CHROMATOGRAPHIC METHODS FOR THE DETERMINATION OF PHARMACEUTICAL DOSAGE FORMS CONTAINING CALCIUM DOBESILATE IN THE PRESENCE OF ITS INTERFERING SUBSTANCES

H. Lotfy, M. Shehata, S. Tawakkol, 2014 .

Successive spectrophotometric resolution as a novel technique for the analysis of ternary mixtures of pharmaceuticals.

H. Lotfy, M. Shehata, S. Tawakkol, 2014, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Validated Stability Indicating Spectrophotometric Methods for the Determination of Lidocaine Hydrochloride, Calcium Dobesilate, and Dexamethasone Acetate in their Dosage Forms

H. Lotfy, M. Shehata, S. Tawakkol, 2013 .

Development and validation of impurity-profiling UPLC method for the determination of sodium cromoglicate and tetryzoline hydrochloride: Application on rabbit aqueous humor.

H. Salem, H. Lotfy, N. Hassan, 2015, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

RECENT DEVELOPMENT IN ULTRAVIOLET SPECTROPHOTOMETRY THROUGH THE LAST DECADE (2006-2016): A REVIEW

H. Lotfy, S. Saleh, S. S. Saleh, 2016 .

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

M. Abdelkawy, H. Lotfy, E. Shokry, 2016 .

Spectrophotometric methods for simultaneous determination of betamethasone valerate and fusidic acid in their binary mixture.

H. Salem, A. Samir, H. Lotfy, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

A comparative study of different aspects of manipulating ratio spectra applied for ternary mixtures: derivative spectrophotometry versus wavelet transform.

H. Salem, Mohamed B. El-Zeiny, H. Lotfy, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

A comparative study of progressive versus successive spectrophotometric resolution techniques applied for pharmaceutical ternary mixtures.

H. Salem, H. Lotfy, N. Hassan, 2014, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

A comparative study of novel spectrophotometric methods based on isosbestic points; application on a pharmaceutical ternary mixture.

H. Salem, H. Lotfy, N. Hassan, 2014, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Advanced approaches for the treatment and amplification of weak spectral signals produced by critical concentrations in white multicomponent systems.

H. Lotfy, S. Saleh, Christine M. El-Maraghy, 2020, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Novel two wavelength spectrophotometric methods for simultaneous determination of binary mixtures with severely overlapping spectra.

H. Salem, H. Lotfy, N. Hassan, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

A comparative study of validated spectrophotometric and TLC- spectrodensitometric methods for the determination of sodium cromoglicate and fluorometholone in ophthalmic solution.

H. Lotfy, N. Hassan, S. Saleh, 2013, Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society.

Sticking - pulling strategy for assessment of combined medicine for management of tough symptoms in COVID-19 Pandemic using different windows of spectrophotometric Platform-Counterfeit products' detection

H. Lotfy, Dina Ahmed, 2022, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

ABSORBANCE SUBTRACTION AND AMPLITUDE MODULATION AS NOVEL SPECTROPHOTOMETRIC METHODS FOR THE ANALYSIS OF BINARY MIXTURES

H. Lotfy, 2014 .

DETERMINATION OF SIMVASTATIN AND EZATIMIBE IN COMBINED TABLET DOSAGE FORMS BY CONSTANT CENTER SPECTROPHOTOMETRIC METHOD

H. Lotfy, 2012 .

Development and validation of simultaneous spectrophotometric and TLC-spectrodensitometric methods for determination of beclomethasone dipropionate and salbutamol in combined dosage form.

H. Salem, A. Samir, H. Lotfy, 2014, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Novel spectrophotometric methods for simultaneous determination of Amlodipine, Valsartan and Hydrochlorothiazide in their ternary mixture.

M. Hegazy, H. Lotfy, S. Mowaka, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Stability-indicating methods for the determination of famciclovir in the presence of its alkaline-induced degradation product.

H. Lotfy, M. G. El-Bardicy, Mona M Abd El-Moneim Abosen, 2010, Drug testing and analysis.

Different mathematical processing of absorption, ratio and derivative spectra for quantification of mixtures containing minor component: An application to the analysis of the recently co-formulated antidiabetic drugs; canagliflozin and metformin.

D. Mohamed, H. Lotfy, Mona S. Elshahed, 2018, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Novel absorptivity centering method utilizing normalized and factorized spectra for analysis of mixtures with overlapping spectra in different matrices using built-in spectrophotometer software.

H. Lotfy, Yasmin Rostom Omran, 2018, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

A comparative study of smart spectrophotometric methods for simultaneous determination of sitagliptin phosphate and metformin hydrochloride in their binary mixture.

D. Mohamed, H. Lotfy, S. Mowaka, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Evaluation of assay and in-vitro dissolution profile of certain fixed-dose combination using green analytical method

A. Sakur, H. Lotfy, Reem H. Obaydo, 2020, Annales pharmaceutiques francaises.

Simultaneous determination of mebeverine hydrochloride and chlordiazepoxide in their binary mixture using novel univariate spectrophotometric methods via different manipulation pathways.

H. Lotfy, Y. Fayez, A. Michael, 2016, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Impact Study of Mathematical Manipulation on the Resolution Efficiency of the Spectrophotometric Technique-An Application on Veterinary Binary Mixture with Overlapping Absorption Bands.

H. Lotfy, Y. Fayez, H. H. Monir, 2020, Journal of AOAC International.

Paired wavelength relevance as spectrophotometric strategy for evaluation the potency of medicine affecting human health.

H. Lotfy, Y. Fayez, H. H. Monir, 2020, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Univariate versus Multivariate Spectrophotometric Methods for Simultaneous Determination of Complex Binary Mixtures with Overlapped Spectra: A Comparative Study

S. El-Gizawy, H. Lotfy, N. Hassan, 2013 .

A comparative study of novel spectrophotometric resolution techniques applied for pharmaceutical mixtures with partially or severely overlapped spectra.

H. Lotfy, M. Shehata, S. Tawakkol, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Design, Optimization, and Validation of Thin-Layer Chromatography—Densitometry and Chemometry-Assisted Spectrophotometry: A Comparative Study Applied on Quaternary Mixture

H. Salem, H. Lotfy, N. Hassan, 2015, JPC – Journal of Planar Chromatography – Modern TLC.

Different aspects in manipulating overlapped spectra used for the analysis of trimebutine maleate and structure elucidation of its degradation products

M. Abdelkawy, H. Lotfy, Y. Fayez, 2019, Future Journal of Pharmaceutical Sciences.

A rapid and sensitive HPLC assay of some concomitant anti-migraine drugs.

A. El-Kadi, H. Lotfy, M. Shehata, 2014, Journal of chromatographic science.

Stability Indicating Spectrophotometric Methods Determination of Nicardipine in the Presence of its Alkaline Induced Degradation Products

M. Hegazy, H. Lotfy, L. Fattah, 2016 .

Evaluation of the Efficiency of Smart Stability-Indicating Spectrophotometric Methods Based on Mathematical and Statistical Processing of the Obtained Results Via Different Manipulating Pathways

H. Lotfy, Y. Fayez, A. Michael, 2020 .

Simultaneous determination of hydrochlorothiazide, amlodipine, and telmisartan with spectrophotometric and HPLC green chemistry applications.

Y. Vasseghian, S. Joo, E. Drăgoi, 2022, Chemosphere.

Novel spectrophotometric methods for simultaneous determination of timolol and dorzolamide in their binary mixture.

M. Hegazy, H. Lotfy, Yasmin Rostom Omran, 2014, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Simultaneous determination of some cholesterol-lowering drugs in their binary mixture by novel spectrophotometric methods.

M. Hegazy, H. Lotfy, 2013, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

A Comparative Study of the Novel Ratio Difference Method versus Conventional Spectrophotometric Techniques for the Analysis of Binary Mixture with Overlapped Spectra

S. El-Gizawy, H. Lotfy, N. Hassan, 2012 .

ANALYTICAL STUDY OF TWO COMMERCIAL SEX PHEROMONE LURES FOR MONITORING MALES OF COTTON LEAFWORM (CLW) AND SPINY BOLLWORM (SBW) IN EGYPT

N. Khalil, H. Lotfy, Ezzat M.Abdel-Moety, 2012 .

Spectral analysis of overlapped absorption bands of binary mixtures—an application on combination of pseudoephedrine sulphate and loratadine mixture

M. Abdelkawy, H. Lotfy, Sara El-Hanboushy, 2019, Future Journal of Pharmaceutical Sciences.

The concept of Relative Absorptivity Distribution for enhancing disbanding power of spectrophotometric technique to resolve co-formulated tablets: A tool for purity index and uniformity assessment.

D. Mohamed, H. Lotfy, Mona S. Elshahed, 2020, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Investigation of the Profile and Kinetics of Degradation of Fenticonazole Nitrate using Stability-indicating HPLC Assay in Presence of Methyl and Propyl Parabens: Application to Preformulation Studies

M. Al-Ghobashy, E. Noaman, H. Lotfy, 2016 .

Development and Validation of Stability Indicating Spectrophotometric Methods for Determination of Sulbutiamine in Tablet Dosage Form

M. Al-Ghobashy, M. Abdallah, H. Lotfy, 2016 .

Investigating Advanced Approaches Based on Iso-Absorptivity Coefficient in Unresolved Spectral Signals of Binary Mixtures

H. Lotfy, S. S. Saleh, 2019, Journal of Analytical Methods in Chemistry.

A Green Potentiometric Application for Selective Monitoring of Doxylamine Succinate Dissolution Profile in Combined Dosage Form

M. A. El-Rahman, H. Lotfy, S. A. Weshahy, 2020 .

Comparative study of RP-HPLC versus TLC-spectrodensitometric methods applied for binary mixtures of fluoroquinolones and corticosteroids

S. El-Gizawy, H. Lotfy, N. Hassan, 2014 .

The power of High Impact Amplitude Manipulation (HIAM) technique for extracting the basic spectra of two Fixed-dose combinations (FDC) -Spectrophotometric purity analysis via spectral contrast angle.

N. Erk, H. Lotfy, Gizem Tırıs, 2022, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Coupling of liquid-liquid extraction and mathematical filtration techniques for the separation and quantification of five components in semisolid dosage form with severely overlapped spectra.

H. Lotfy, N. M. Fahmy, 2020, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Testing the purity of spectral profiles: Finger-print resolution of complex matrices and extraction of absorbance signals.

H. Lotfy, S. S. Saleh, 2018, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Validated Stability-Indicating Chromatographic Methods for the Determination of Chlordiazepoxide and Clidinium Bromide in the Presence of its Alkali-Induced Degradation Product: Kinetic Study

H. Lotfy, Y. Fayez, A. Michael, 2017, Chromatographia.

Comparative study of the resolution efficiency of HPLC and HPTLC-densitometric methods for the analysis of mebeverine hydrochloride and chlordiazepoxide in their binary mixture

H. Lotfy, Y. Fayez, A. Michael, 2016 .

Study of efficiency and spectral resolution for mathematical filtration technique using novel unlimited derivative ratio and classical univariate spectrophotometric methods for the multicomponent determination-stability analysis

M. K. Abdel Rahman, H. Lotfy, S. A. Weshahy, 2019, Heliyon.

Environmentally sustainable Computationally Spectrophotometric Resolution Strategy for Analysis Single-Tablet Regimens of Antihypertension with Overlapped spectra

H. Lotfy, Reem H. Obaydo, Ekram H Mohamed, 2023, Talanta Open.

Different applications of isosbestic points, normalized spectra and dual wavelength as powerful tools for resolution of multicomponent mixtures with severely overlapping spectra

M. Hegazy, H. Lotfy, S. Mowaka, 2017, Chemistry Central Journal.

Development and validation of a modified QuEChERS protocol coupled to LC-MS/MS for simultaneous determination of multi-class antibiotic residues in honey.

M. Al-Ghobashy, S. Gad Alla, A. Shendy, 2016 .

NOVEL SPECTROPHOTOMETRIC METHODS FOR THE DETERMINATION OF FLUCONAZOLE IN THE PRESENCE OF ITS OXIDATIVE DEGRADATION PRODUCT

H. Lotfy, H. H. Monir, A. El-Aleem, 2012 .

COMPARATIVE STUDY OF NEW SPECTROPHOTOMETRIC METHODS; AN APPLICATION ON PHARMACEUTICAL BINARY MIXTURE OF CIPROFLOXACIN HYDROCHLORIDE AND HYDROCORTISONE

S. El-Gizawy, H. Lotfy, N. Hassan, 2013 .

Spider chart and whiteness assessment of synergistic spectrophotometric strategy for quantification of triple combination recommended in seasonal influenza – Detection of spurious drug

H. Lotfy, Reem H. Obaydo, C. Nessim, 2023, Sustainable Chemistry and Pharmacy.

Application of advanced environmentally benign assessment tools in determining ternary cardiovascular drug combination by RP-HPLC with analytical quality by design: Application to stability indicating method evaluation

N. Erk, H. Lotfy, Reem H. Obaydo, 2023, Sustainable Chemistry and Pharmacy.

Sustainable spectrophotometric determination of antihypertensive medicines reducing COVID-19 risk via paired wavelength data processing technique - Assessment of purity, greenness and whiteness

M. Abdelkawy, H. Lotfy, H. Marzouk, 2022, Sustainable Chemistry and Pharmacy.

Evaluation of in silico and in lab sample enrichment techniques for the assessment of challengeable quaternary combination in critical ratio.

H. Lotfy, Dina Ahmed, 2021, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Application of Successive and Progressive Spectrophotometric Resolution for the Analysis of Partially or Completely Overlapping Ternary Mixtures

H. Lotfy, Sara El-Hanboushy, E. Shokry, 2016 .

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.

H. Zaazaa, S. Amer, H. Lotfy, 2015, Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy.

Greenness profile and whiteness assessment of the stability-indicating HPLC method for the assay of Levetiracetam

H. Lotfy, A. Michael, C. Nessim, 2023, Microchemical Journal.

ADVANCED AMPLITUDE CENTERING AS AN INVIGORATING MANIPULATION FOR UNIFIED WAVELENGTH SPECTRAL RESOLUTION OF TERNARY MIXTURES

H. Lotfy, S. S. Saleh, 2017 .

Coupling of physical extraction and mathematical filtration in spectrophotometric analysis of natural therapy essential for prophylaxis and treatment of COVID-19 infection - Comparative study along with greenness evaluation

S. A. Boltia, H. Lotfy, Y. Fayez, 2023, Heliyon.

Computation of geometric representation of novel spectrophotometric methods used for the analysis of minor components in pharmaceutical preparations.

H. Salem, H. Lotfy, N. Hassan, 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Development and validation of a modified QuEChERS protocol coupled to LC-MS/MS for simultaneous determination of multi-class antibiotic residues in honey.

M. Al-Ghobashy, S. Gad Alla, A. Shendy, 2016, Food chemistry.

Stability indicating methods for the determination of acyclovir in the presence of its degradation product

H. Lotfy, M. G. El-bardicy, M. M. A. E. Abosen, 2010 .

A validated stability Indicating method for the determination of sumatriptan and kinetic study of the degradation Full Paper

A. El-Kadi, H. Lotfy, M. Shehata, 2022 .

SELECTIVE LIQUID CHROMATOGRAPHIC QUANTIFICATION OF BETAMETHASONE VALERATE AND CLIOQUINOL IN PRESENCE OF POTENTIAL INTERFERENTS

H. Lotfy, Ezzat M.Abdel-Moety, Eman G. Nouman, 2014 .

Monitoring of Clotrimazole Degradation Pathway in Presence of its Co-formulated Drug.

H. Lotfy, Y. Fayez, M. Shehata, 2019, Journal of chromatographic science.