S. Tawakkol

发表

Fluorimetric determination of diosmin and hesperidin in combined dosage forms and in plasma through complex formation with terbium

D. Mohamed, S. Tawakkol, 2013 .

Comparison between molecularly imprinted polymers and β-cyclodextrin as ionophores, in presence of nano carbon dots water channels and application in marketed product and environmental samples

A. Fayed, Miriam F. Ayad, S. Tawakkol, 2022, Archives of Pharmaceutical Sciences Ain Shams University.

Comparative study between univariate spectrophotometry and multivariate calibration as analytical tools for simultaneous quantitation of Moexipril and Hydrochlorothiazide.

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

Comparative study between univariate spectrophotometry and multivariate calibration as analytical tools for quantitation of Benazepril alone and in combination with Amlodipine.

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

SIMULTANEOUS DETERMINATION OF AMLODIPINE BESYLATE AND ATORVASTATIN CALCIUM BY USING SPECTROPHOTOMETRIC METHOD WITH MULTIVARIATE CALIBRATION AND HPLC METHOD IMPLEMENTING "DESIGN OF EXPERIMENT"

Ahmed M. Ibrahim, M. Rizk, S. Tawakkol, 2014 .

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

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

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.

Colorimetric and fluorimetric methods for determination of panthenol in cosmetic and pharmaceutical formulation.

M. Shehata, S. Tawakkol, L. A. Abdel Fattah, 2002, Journal of pharmaceutical and biomedical analysis.

A Novel Potentiometric Detection Strategy for the Determination of Amlodipine Besylate Based on Functionalized Particles

Miriam F. Ayad, S. Tawakkol, A. El-Kosasy, 2014 .

Photostabilization of sunscreen oil through preparation of a free-flowing powder

Randa Latif, H. Refai, S. Tawakkol, 2011, Journal of microencapsulation.

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.

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.

APPLICABILITY OF BIVARIATE CALIBRATION ALGORITHM AND VIERORDT METHOD FOR SIMULTANEOUS DETERMINATION OF TIMOLOL MALEATE AND BRIMONIDINE TARTRATE IN THEIR BINARY MIXTURE AND PHARMACEUTICAL DOSAGE FORM

Mona N. Sweilam, M. Rizk, S. Tawakkol, 2014 .

Stability Study of the Calcium Channel Blocker Lercanidipine and its Determination by Reversed Phase Chromatography in Pharmaceutical Formulation and Plasma

M. Farouk, M. Shehata, S. Tawakkol, 2014 .

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 .

New potentiometric determination of clindamycin hydrochloride in pharmaceuticals

Mona N. Sweilam, M. Rizk, S. Tawakkol, 2013 .

New methods for amlodipine and valsartan native spectrofluorimetric determination, with factors optimization study.

Miriam F. Ayad, S. Tawakkol, A. El-Kosasy, 2015, Talanta.

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.

Development of a Validated Stability Indicating Rp Hplc Method for Simultan eous Determination of Benazepril , Benazeprilat , and Amlodipine in Presence of their Degradation Products and Application to Pharmaceutical Formulatin and Human Plasma

A. Mostafa, S. Tawakkol, A. Mostafa, 2016 .

Potentiometric Membrane Sensors for Determination of Memantine Hydrochloride and Pramipexole Dihydrochloride Monohydrate

S. Toubar, Marwa I Helmy, S. Tawakkol, 2012 .

Simultaneous Determination of Timolol maleate and Brimonidine tartarate in their Pharmaceutical Dosage Form

Mona N. Sweilam, M. Rizk, S. Tawakkol, 2014 .

Full spectrum and selected spectrum based chemometric methods for the simultaneous determination of Cinnarizine and Dimenhydrinate in laboratory prepared mixtures and pharmaceutical dosage form.

Mohamed B. El-Zeiny, S. Tawakkol, A. Hemdan, 2017, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

Development and validation of a stability-indicating micellar liquid chromatographic method for the determination of timolol maleate in the presence of its degradation products.

Mona N. Sweilam, M. Rizk, S. Tawakkol, 2015, Journal of chromatographic science.

Simultaneous Determination of Atenolol and Nifedipine by UsingSpectrophotometric Method with Multivariate Calibration and HPLCMethod Implementing Ã¢ÂÂDesign of ExperimentÃ¢ÂÂ

Ahmed M. Ibrahim, M. Rizk, I. Abdallah, 2015 .

Different Approaches in Determination of Lercanidipine in Presence of its Degradation Products by Stability Indicating Univariate and Multivariate Calibrations

M. Farouk, M. Shehata, S. Tawakkol, 2016 .

Analytical Chemistry: An Indian Journal

S. Tawakkol, A. Mostafa, 2016 .

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

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

Liquid Chromatography-Electro Spray Ionization Tandem Mass Spectrometry for Simultaneous Determination of Amlodipine, Benazepril and its Active Metabolite Benazeprilat in Human Plasma

Omar Abd Elaziz, M. Farouk, M. Shehata, 2014 .