Publications by authors named "Manar M Tolba"

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Engineering Fe-doped carbon-based nanozyme from novel source for chemiluminescence/colorimetric dual-mode microplate sensing of the anticancer drug raloxifene in different matrices.
Walaa Nabil Abd-AlGhafar, Rasha Abo Shabana, Manar M Tolba, Rania El-Shaheny

Talanta· January 2026

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Eco-friendly simultaneous estimation of atenolol and losartan potassium in spiked human plasma via synchronous fluorescence with sustainability assessment.
Ekram A Ghozzy, Nahed M El-Enany, Manar M Tolba, Samah Abo El Abass

Luminescence· July 2024

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An eco-friendly and cost-effective HPTLC method for quantification of COVID-19 antiviral drug and co-administered medications in spiked human plasma.
Ekram A Ghozzy, Nahed M El-Enany, Manar M Tolba, Samah Abo El Abass

Sci Rep· May 2024

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Environmentally benign first derivative synchronous spectrofluorimetry for the analysis of two binary mixtures containing duloxetine with avanafil or tadalafil in spiked plasma samples.
Walaa Nabil Abd-AlGhafar, Rasha Abo Shabana, Rania El-Shaheny, Manar M Tolba

Luminescence· March 2024

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Environmentally benign liquid chromatographic method for concurrent estimation of four antihistaminic drugs applying factorial design approach.
Rana Ghonim, Manar M Tolba, Fawzia Ibrahim, Mohamed I El-Awady

BMC Chem· January 2024

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Utility of the food colorant erythrosine B as an effective green probe for quantitation of the anticancer sunitinib. Application to pharmaceutical formulations and human plasma.
Mona E El Sharkasy, Manar M Tolba, Fathalla Belal, Mohamed I Walash, Rasha AboShabana

Luminescence· December 2023

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Smart green spectrophotometric assay of the ternary mixture of drotaverine, caffeine and paracetamol in their pharmaceutical dosage form.
Rana Ghonim, Manar M Tolba, Fawzia Ibrahim, Mohamed I El-Awady

BMC Chem· December 2023

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Multi-spectroscopic assay methods for concurrent determination of recent anti-gout combination, a comparative study.
Nora A Abdallah, Mona E Fathy, Manar M Tolba, Amina M El-Brashy, Fawzia A Ibrahim

Spectrochim Acta A Mol Biomol Spectrosc· August 2023

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Hydro-organic mobile phase and factorial design application to attain green HPLC method for simultaneous assay of paracetamol and dantrolene sodium in combined capsules.
Nora A Abdallah, Manar M Tolba, Amina M El-Brashy, Fawzia A Ibrahim, Mona E Fathy

BMC Chem· August 2023

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Spectrofluorometric determination of orphenadrine, dimenhydrinate, and cinnarizine using direct and synchronous techniques with greenness assessment.
Rana Ghonim, Manar M Tolba, Fawzia Ibrahim, Mohamed I El-Awady

Sci Rep· August 2023

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Green Constant-wavelength Concurrent Selective Fluorescence Method for Assay of Ibuprofen and Chlorzoxazone in Presence of Chlorzoxazone Degradation Product.
Nora A Abdallah, Mona E Fathy, Manar M Tolba, Amina M El-Brashy, Fawzia A Ibrahim

J Fluoresc· July 2023

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Turn-off fluorescence of S,N-doped carbon dots for determination of two nitro-containing drugs in dosage forms and human plasma.
Mona E El Sharkasy, Manar M Tolba, Fathalla Belal, Mohamed I Walash, Rasha Aboshabana

Spectrochim Acta A Mol Biomol Spectrosc· March 2023

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Investigation of eco-friendly fluorescence quenching probes for assessment of acemetacin using silver nanoparticles and acriflavine reagent.
Rana Ghonim, Mohamed I El-Awady, Manar M Tolba, Fawzia A Ibrahim

Sci Rep· March 2023

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A quality-by-design eco-friendly UV-HPLC method for the determination of four drugs used to treat symptoms of common cold and COVID-19.
Nora A Abdallah, Mona E Fathy, Manar M Tolba, Amina M El-Brashy, Fawzia A Ibrahim

Sci Rep· January 2023

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Simultaneous spectrofluorimetic determination of remdesivir and simeprevir in human plasma.
Mona E El Sharkasy, Manar M Tolba, Fathalla Belal, Mohamed I Walash, Rasha Aboshabana

Sci Rep· December 2022

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Innovative localized surface plasmon resonance sensing technique for a green spectrofluorimetric assay of ketoprofen, paracetamol and chlorzoxazone in pharmaceutical preparations and biological fluids.
Nora A Abdallah, Mona E Fathy, Manar M Tolba, Amina M El-Brashy, Fawzia A Ibrahim

RSC Adv· November 2022

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Quantitative analysis of favipiravir and hydroxychloroquine as FDA-approved drugs for treatment of COVID-19 using synchronous spectrofluorimetry: application to pharmaceutical formulations and biological fluids.
Mona E El Sharkasy, Manar M Tolba, Fathalla Belal, Mohamed Walash, Rasha Aboshabana

Luminescence· June 2022

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Thiosemicarbazide functionalized carbon quantum dots as a fluorescent probe for the determination of some oxicams: application to dosage forms and biological fluids.
Mona E El Sharkasy, Manar M Tolba, Fathalla Belal, Mohamed I Walash, Rasha Aboshabana

RSC Adv· May 2022

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Synchronized spectrofluorimetric determination of ponatinib and curcumin as an effective therapeutic combination in laboratory prepared mixtures and human plasma samples.
Mona E El Sharkasy, Rasha Aboshabana, F Belal, M Walash, Manar M Tolba

Spectrochim Acta A Mol Biomol Spectrosc· January 2022

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Green quantitative spectrofluorometric analysis of rupatadine and montelukast at nanogram scale using direct and synchronous techniques.
Rana Ghonim, Mohamed I El-Awady, Manar M Tolba, Fawzia Ibrahim

R Soc Open Sci· November 2021

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Green spectrofluorimetric assay of dantrolene sodium via reduction method: application to content uniformity testing.
Nora A Abdalah, Mona E Fathy, Manar M Tolba, Amina M El-Brashy, Fawzia A Ibrahim

R Soc Open Sci· July 2021

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Derivative Quotient Spectrophotometry and an Eco-Friendly Micellar Chromatographic Approach with Time-Programmed UV-Detection for the Separation of Two Fluoroquinolones and Phenazopyridine.
Manar M Tolba, Mohamed M Salim

J Chromatogr Sci· December 2016

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Derivative spectrophotometric and liquid chromatographic methods for the simultaneous determination of metoclopramide hydrochloride and aspirin in pharmaceuticals.
Fathalla F Belal, Mohie K Sharaf El-Din, Manar M Tolba, Heba Elmansi

J Chromatogr Sci· July 2015

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Enhanced spectrofluorimetric determination of esomeprazole and pantoprazole in dosage forms and spiked human plasma using organized media.
Fathalla Belal, Mohie Sharaf El-Din, Manar M Tolba, Heba Alaa

Luminescence· May 2015

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Liquid chromatographic method for the simultaneous determination of eprosartan and hydrochlorothiazide in tablets and human plasma.
Fathalla Belal, Amina M El-Brashy, Nahed El-Enany, Manar M Tolba

J AOAC Int· August 2011

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