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A Novel, Sustainable, and Eco-Friendly Spectrophotometric and Chemometric Approach for Determination of Severely Overlapped Spectrum via Unified Regression Equation: Greenness and Whiteness Assessment

Autor: Ragaa Magdy, Nermine V Fares, Maha Farouk, Ahmed Hemdan

Publikováno v: Journal of AOAC International.

Background Nebivolol and valsartan (VAL) in combination with each other successfully control blood pressure and improve hypertension patient outcomes. Objective To develop and validate innovative, simple, and sustainable spectrophotometric methods fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2dc7f87038731e48290ec481c5228fe
https://doi.org/10.1093/jaoacint/qsad037

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Simultaneous spectrophotometric determination of drugs lacking peak maxima in their zero-order profiles by graphical or statistical representation of data

Autor: N.V. Fares, Ragaa Magdy, A. Hemdan, Maha Farouk

Publikováno v: European Journal of Chemistry. 9:194-201

Trandolapril has no sharp peak in its zero-order spectrum, therefore it is difficult to be measured by direct spectrophotometry. In this study, direct univariate spectrophotometric methods were developed and validated for determination of Trandolapri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f78b0c339ad5d9dea6cfcf4b88c12610
https://doi.org/10.5155/eurjchem.9.3.194-201.1727

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Response surface design as a powerful tool for the development of environmentally benign HPLC methods for the determination of two antihypertensive combinations: Greenness assessment by two green analytical chemistry evaluation tools

Autor: A. Hemdan, Maha Farouk, Ragaa Magdy

Publikováno v: Journal of Separation Science. 41:3213-3223

Interest in implementing green chemistry principles in analytical chemistry has grown dramatically in the past few years. The solvents used have the major influence on the greenness of the method. Most conventional high-performance liquid chromatogra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a5b000430296689f6d0c674a01d0cd2
https://doi.org/10.1002/jssc.201800317

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Stepwise Optimization Strategies Utilizing Recent Univariate and Multivariate Methods for Determination of the Partially Overlapped Mixture Perindopril and Indapamide

Autor: Maha Farouk, N.V. Fares, Ragaa Magdy, A. Hemdan

Publikováno v: Analytical Chemistry Letters. 8:486-502

Recently, different novel univariate methods were presented for determination of mixtures of drugs having partially overlapped UV spectra. These methods are used when one component is more extended than the other. In this study, these methods were te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d39232916b0048fec53fc68383ffc14
https://doi.org/10.1080/22297928.2018.1468816

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Comparison Between Cyano and C-18 Columns for Separation of Trandolapril and Verapamil with ESI-Q-ToF-MS Characterization of Acidic and Basic Degradation Products: Stability Indicating Assay Methods

Autor: Ragaa Magdy, A. Hemdan, Maha Farouk

Publikováno v: Chromatographia. 81:1163-1172

Different stationary phases were compared for their separation efficiency of Trandolapril (TRP) and Verapamil (VRP) in presence of acidic, basic, oxidative, and photolytic degradation products. The separation was applied on two different stationary p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70e06afa592c415c1d858e99b7dbb246
https://doi.org/10.1007/s10337-018-3547-8

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Determination of amlodipine and atorvastatin mixture by different spectrophotometric methods with or without regression equations

Autor: A. Hemdan, N.V. Fares, Ragaa Magdy, Maha Farouk

Publikováno v: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 210

Four new, simple, and reproducible spectrophotometric methods were developed and validated for the simultaneous determination of Amlodipine (AML) and Atorvastatin (AT) in bulk powder and pharmaceutical dosage form. The four methods include two progre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd25a28ced5e968434a1884cf0618445
https://pubmed.ncbi.nlm.nih.gov/30453196

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Univariate calibrations with or without chemometric assistance for determination of drugs lacking peak maxima in their zero-order profiles

Autor: Maha Farouk, N.V. Fares, A. Hemdan, Ragaa Magdy

Publikováno v: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 206

Trandolapril has no sharp peak in its zero-order spectrum and therefore, it is difficult to be measured by direct spectrophotometry. In this manuscript, several univariate and multivariate spectrophotometric methods were developed and validated for d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1586455ae58b68225ec4eab297a08ada
https://pubmed.ncbi.nlm.nih.gov/30114580

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Comparative pharmacokinetics of trandolapril, its active metabolite, and verapamil in human plasma of Egyptian population using HPLC-MS/MS

Autor: Ragaa Magdy, A. Hemdan, Maha Farouk, Omar Abd Elaziz, Ahmed H. El-Khatib, Michael W. Linscheid

Publikováno v: Drug testing and analysis.

Trandolapril and verapamil are commonly used antihypertensive drugs. However, there is a lack of available data on the change of their pharmacokinetics in patients with liver or kidney impairment and hence the need for dose adjustment. In this articl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7382aaa439292a33b61461dcbf9e12d9
https://pubmed.ncbi.nlm.nih.gov/29319234

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