A5045714408- Analytical Methods in Pharmaceuticals
- Analytical Chemistry and Chromatography
- Electrochemical sensors and biosensors
- Carbon and Quantum Dots Applications
- Analytical chemistry methods development
- Analytical Chemistry and Sensors
- Diabetes Treatment and Management
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Chemical Sensor Technologies
- Dye analysis and toxicity
- Atrial Fibrillation Management and Outcomes
- Chemistry and Chemical Engineering
- Pancreatic function and diabetes
- Pesticide Residue Analysis and Safety
- Geochemistry and Elemental Analysis
- Advanced Measurement and Metrology Techniques
- Clay minerals and soil interactions
- Water Quality Monitoring and Analysis
- Spectroscopy and Chemometric Analyses
- Advanced machining processes and optimization
- Metabolism, Diabetes, and Cancer
- Biosensors and Analytical Detection
- Thermography and Photoacoustic Techniques
- Synthesis and Biological Evaluation
- Pharmacological Effects of Natural Compounds
Kafrelsheikh University
2025
Tanta University
2018-2024
Miami University
2021
Egyptian Information Telecommunications Electronics and Software Alliance
2006
Abstract The synthesis of cobalt, nitrogen and sulfur co doped carbon quantum dots (Co-NS-CQDs) has become a subject significant research interest. These CQDs were produced using single-step microwave method, which is considered environmentally friendly, the entire process was completed in just 90 seconds. In this synthesis, citric acid utilized as source, methionine served source for both sulfur, cobaltous acetate used to introduce cobalt ions into structure. synthesized (CQDs) exhibit...
Abstract This study presents two spectrophotometric methods; a novel dual wavelength—derivative spectrophotometry and multivariate curve resolution-alternating least squares (MCR-ALS) for the simultaneous determination of fixed dose combination bupivacaine (BUP) meloxicam (MEL) in ratio 30:1. The extended UV spectrum MEL enables its direct at λ max 360 nm with no interference from BUP. BUP was unfeasible directly because spectra both drugs are moderately overlapped over wavelength range...
Abstract Recently, significant attention has been directed towards digital image colorimetry DIC using mobile applications or available software programs, which offer the advantage of analyzing samples without need for sophisticated instruments. One such processing program is Image J, widely used obtaining quantitative information from scientific images. J could measure color intensities by quantifying RGB (red–green–blue) gray levels across images colored substances. These values are...
Abstract Studies have shown the electron shuttling role of humic substances (HS) in enhancing microbial reduction solid-phase Fe(III), but it is unknown if native HS can reduce structural Fe(III) clays and how their chemical properties affect this process secondary mineralization. The objective study was to evaluate natural HS, Leonardite acid (LHA), Pahokee Peat (PPHA) reducing nontronite with or without Shewanella putrefaciens. extent determined a wet method. Electrochemical methods,...
Abstract This study presents a stability indicating high-performance liquid chromatography HPLC method for the determination of cenobamate (CNB) in presence its main impurity (CNB H-impurity) and degradation products. The chromatographic separation was carried out on Thermo BDS Hypersil-C18 column (150 × 4.6 mm; 5 μm) with mobile phase consisting 50:50 (% v/v ) ratio methanol purified water. flow rate maintained at 1.0 mL. min − 1 . CNB detected 210 nm using PDA detector. temperature held 40...
Abstract In this study, an environmentally sustainable fluorimetric method for determination of Vonoprazan fumarate (VON) in dosage forms using nanoprobes consisting nitrogen and sulfur co‐doped carbon quantum dots (N, S‐CQDs). The N, S‐CQDs were prepared through a microwave‐assisted 30 s. resulting characterized transmission electron microscopy (TEM), high‐resolution (HRTEM), Fourier transform infrared spectroscopy (FTIR), X‐ray photoelectron (XPS). They exhibit fluorescence emission at 460...
A simple stability‐indicating reversed‐phase high‐performance liquid chromatography method has been developed for determination of elobixibat in presence its potential impurities and degradation products. The chromatographic separation was carried on a Thermo scientific Base Deactivated Silica BDS Hypersil‐C18 (150 × 4.6 mm; 5 μm) column using mobile phase acetonitrile phosphate buffer (25 mM, pH 2.5) ratio (70:30, v/v). experimental conditions were accurately investigated, the validated...
There are two main problems encountered in spectrophotometric analysis of a ternary mixture composed linagliptin LINA, empagliflozin EMPA and metformin hydrochloride MET. The first problem is due to the severe overlap their zero derivative spectra. To overcome this problem, LINA was determined by direct spectrophotometry at λ max = 298 nm where there no interference from other components while, MET were using double divisor ratio spectra method DDRD. In method, calculated for generated...
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