7 hasil untuk "Nariman A. El-Ragehy"
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Artikel Jurnal
Validated potentiometric method for the determination of sulfacetamide sodium; application to its pharmaceutical formulations and spiked rabbit aqueous humor
Specific, accurate and precise electrochemical method was developed and validated for the determination of sulfacetamide sodium in presence of its co-formulated drug (prednisolone acetate) and its pharmacopoeial impurities. The method was based on fabrication of membrane sensor. The characteristics…
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Artikel Jurnal
Development of a biosensor for spectrophotometric determination of l-lactate in artificial saliva
Abstract Analysis of critical biomarkers like l-lactate is extremely important in clinical practice. Herein, a non-invasive and sensitive colorimetric biosensor for accurate l-lactate determination has been developed. The proposed method demonstrates the ability of Fe3+ ions of iron(III) chloride…
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Artikel Jurnal
Smart chemometrics-assisted spectrophotometric methods for efficient resolution and simultaneous determination of paracetamol, caffeine, drotaverine HCl along with three of their corresponding related impurities
Abstract Three novel, simple and accurate multivariate spectrophotometric assisted mathematical techniques were developed for determination of paracetamol, caffeine, drotaverine HCl and their related impurities. The used multivariate algorithms are principal component regression (PCR), partial…
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Artikel Jurnal
Eco-friendly HPTLC Determination of Paracetamol, Caffeine, Drotaverine HCl and Two of their Official Impurities; Application to Assay and Content Uniformity Testing of Tablet Dosage Form
The present work is focused on developing and validating an eco-friendly, sustainable and sensitive HPTLC method for the purpose of simultaneous determination of a five component mixture. This mixture includes paracetamol, caffeine, drotaverine HCl and the official impurities of the first two…
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Artikel Jurnal
Simultaneous determination of a quaternary mixture of oxomemazine, sodium benzoate, guaifenesin and paracetamol by chromatographic methods
The aim of the present work was to develop simple, accurate, sensitive and selective methods for the simultaneous determination of oxomemazine (Ox), sodium benzoate (SB), guaifenesin (Gu), andparacetamol (Par). Two methods were described and validated for the simultaneous determination of the four…
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Artikel Jurnal
Stability-indicating methods for the determination of pipazethate HCl in the presence of its alkaline degradation product
Three different accurate, sensitive and reproducible stability-indicating methods for the determination of pipazethate HCl in the presence of its alkaline degradation product are presented. The first method is based on ratio-spectra 1st derivative (RSD1) spectrophotometry of the drug at 305 nm…
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Artikel Jurnal
Electrochemical sensor doped with core-shell structured molecularly imprinted polymer proposed for therapeutic drug monitoring of trazodone hydrochloride
Currently, the global push for eco-friendly analytical techniques has altered the priorities of analytical methodologies in accordance with their level of adherence to the principles of green analytical chemistry. Herein, sustainable, sensitive, accurate and cost-effective core-shell molecularly…