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Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Highly fluorescent nitrogen-doped carbon quantum dots prepared using sucrose and urea: Green synthesis, characterization, and use for determination of torsemide in its tablets and plasma samples. LUMINESCENCE 2024; 39:e4710. [PMID: 38481364 DOI: 10.1002/bio.4710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/14/2024] [Accepted: 02/11/2024] [Indexed: 03/22/2024]
Abstract
A simple and facile microwave-assisted method was developed for the synthesis of highly fluorescent nitrogen-doped carbon quantum dots (N-CQDs) using sucrose and urea. The produced quantum dots exhibited a strong emission band at 376 nm after excitation at 216 nm with quantum yield of 0.57. The as-prepared N-CQDs were characterized using Fourier-transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM) images, and ultraviolet-visible (UV-visible) spectra. The average particle size was 7.7 nm. It was found that torsemide (TRS) caused an obvious quenching of the fluorescent N-CQDs; so, they were used for its spectrofluorometric estimation. An excellent linear correlation was found between the fluorescence quenching of N-CQDs and the concentration of the drug in the range of 0.10 to 1.0 μg/mL with limit of quantitation (LOQ) of 0.08 μg/mL and limit of detection (LOD) of 0.027 μg/mL. The method was successfully applied for the assay of the drug in its commercial tablets and spiked human plasma samples, and the results obtained were satisfactory. Complex GAPI was used for greenness assessment of the analytical procedures and the pre-analysis steps. Interference likely to be introduced from co-administered drugs was also studied.
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Affiliation(s)
- Mona H Abo Zaid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Nahed El-Enany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, New Mansoura University, New Mansoura, Egypt
| | - Aziza E Mostafa
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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S. Eissa M, Attala K, Elsonbaty A, Mostafa AE, A. Abdel Salam R, M. Hadad G, Abdelshakour MA. Ecological spectroscopic methodologies for quantifying co-administered drugs in human plasma by photochemical quantum mechanical simulation. Heliyon 2024; 10:e24466. [PMID: 38317894 PMCID: PMC10839881 DOI: 10.1016/j.heliyon.2024.e24466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 02/07/2024] Open
Abstract
Urinary tract infections (UTIs) constitute the second most prevalent bacterial infections in the elderly demographic. The treatment landscape involves various antibiotics targeting the causative organisms; nevertheless, the emergence of resistance significantly impacts therapeutic effectiveness. Presently, a fixed-dose pharmaceutical combination is advocated to optimize patient outcomes by mitigating the risks of bacterial resistance and associated side effects. Ofloxacin (OFL) and cefpodoxime proxetil (CPD) combinations, co-administered with flavoxate hydrochloride (FLV), have demonstrated efficacy in UTI cases, offering relief from concomitant symptoms. In the pharmaceutical market, fixed-dose combinations have gained prominence, driven by advantages such as enhanced patient medication adherence and compliance. In the realm of analytical chemistry, the integration of green practices in the initial phases of method development is exemplified by the Greenness by Design (GbD) strategy. While univariate spectroscopic methods are conventionally considered suboptimal compared to chemometric techniques for resolving intricate mixtures, GbD approach, when applied to UV spectroscopy, enable univariate methods to attain comparable or superior outcomes. GbD adopts a systematic approach to optimize experimental conditions, minimizing environmental impact and maximizing analytical performance. Critical to GbD applications in UV spectroscopy is solvent selection, influencing spectral resolution and measurement sensitivity. GbD employs a combination of in-vitro and in-silico experiments to evaluate solute-solvent interactions with underlying photochemical quantum phenomena affecting the resulting spectral morphology, identifying an optimal compromise solvent with high resolution and minimal ecological impact. Consequently, it facilitates the efficient resolution of spectral overlapping and determination of complex mixtures in UV spectroscopy using univariate methods. Comparative analysis with chemometric techniques, acknowledged as potent spectral resolving methods, demonstrated that GbD-based univariate methods performed equivalently. The methodology was validated according to ICH recommendations, establishing a linear quantitation range (2-30 μg/mL) and a limit of detection (0.355-0.414 μg/mL) for the three drugs in human plasma. The greenness of the developed methodology was affirmed through the AGREE assessment protocol, confirming its environmentally conscious attributes.
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Affiliation(s)
- Maya S. Eissa
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, 11829, Egypt
| | - Khaled Attala
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, 11829, Egypt
| | - Ahmed Elsonbaty
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, 11829, Egypt
| | - Aziza E. Mostafa
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, 41522, Ismailia, Egypt
| | - Randa A. Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, 41522, Ismailia, Egypt
| | - Ghada M. Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, 41522, Ismailia, Egypt
| | - Mohamed A. Abdelshakour
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt
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Radwan AS, Salim MM, Elkhoudary MM, Hadad GM, Shaldam MA, Belal F, Magdy G. Study of the binding interaction of salmon sperm DNA with nintedanib, a tyrosine kinase inhibitor using multi-spectroscopic, thermodynamic, and in silico approaches. J Biomol Struct Dyn 2024; 42:1170-1180. [PMID: 37079322 DOI: 10.1080/07391102.2023.2202776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 03/28/2023] [Indexed: 04/21/2023]
Abstract
The study of the intermolecular binding interaction of small molecules with DNA can guide the rational drug design with greater efficacy and improved or more selective activity. In the current study, nintedanib's binding interaction with salmon sperm DNA (ssDNA) was thoroughly investigated using UV-vis spectrophotometry, spectrofluorimetry, ionic strength measurements, viscosity measurements, thermodynamics, molecular docking, and molecular dynamic simulation techniques under physiologically simulated conditions (pH 7.4). The obtained experimental results showed that nintedanib and ssDNA had an apparent binding interaction. Nintedanib's binding constant (Kb) with ssDNA, as determined using the Benesi-Hildebrand plot, was 7.9 × 104 M-1 at 298 K, indicating a moderate binding affinity. The primary binding contact forces were hydrophobic and hydrogen bonding interactions, as verified by the enthalpy and entropy changes (ΔH0 and ΔS0), which were - 16.25 kJ.mol-1 and 39.30 J mol-1 K-1, respectively. According to the results of UV-vis spectrophotometry, viscosity assays, and competitive binding interactions with ethidium bromide or rhodamine B, the binding mode of nintedanib to ssDNA was minor groove. Molecular docking and molecular dynamic simulation studies showed that nintedanib fitted into the B-DNA minor groove's AT-rich region with high stability. This study can contribute to further understanding of nintedanib's molecular mechanisms and pharmacological effects.
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Affiliation(s)
- Aya Saad Radwan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Mohamed M Salim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mahmoud M Elkhoudary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Moataz A Shaldam
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Galal Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
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Mahmoud RA, Hadad GM, Abdel Salam RA, Mokhtar HI. Optimization of a Solid-Phase Extraction Coupled with a High-Performance Liquid Chromatography and Diode Array Ultraviolet Detection Method for Monitoring of Different Antibiotic Class Residues in Water Samples. J AOAC Int 2024; 107:52-60. [PMID: 37740954 DOI: 10.1093/jaoacint/qsad111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/09/2023] [Accepted: 09/14/2023] [Indexed: 09/25/2023]
Abstract
BACKGROUND The increased use of cephalosporin antibiotics in the last few years as well as the detection of their residues in wastewater treatment plants and hospital wastewater poses a risk for infiltration of their residues into environmental water samples. OBJECTIVE A simplified, sensitive, and convenient solid-phase extraction (SPE) procedure coupled with either HPLC or fast HPLC methods with diode array detection was developed and validated to screen the residues of six different cephalosporin antibiotics: cefoperazone, cefipime, ceftazedime, ceftriaxone, cefdinir, and cefotaxime, along with amoxicillin, levofloxacin, and ciprofloxacin in water samples. METHODS An HPLC-diode array detector (HPLC-DAD) method and a fast HPLC method, based on a core-shell stationary phase, were developed for the fast screening of the antibiotic compounds. In addition, the SPE step was optimized to enable the extraction of the studied drugs with high accuracy of the recovered amounts of residues. RESULTS The method sensitivity was enhanced by the coupling of SPE with HPLC-DAD and fast HPLC to achieve low LODs; from 0.2 to 3.8 ng/mL and from 0.65 to 12.2 ng/mL, respectively. The developed methods were augmented by LC-MS/MS determination for confirmation of identity and quantity of any positively identified sample. The method was applied to the analysis of water samples collected from a rural site. In Addition, an example application of cleaning validation of cefotaxime-contaminated stainless-steel surfaces was provided. CONCLUSION The method's simplicity and high sensitivity encourage its application in monitoring of antibiotic residues in different types of water samples such as environmental samples and samples from cleaning validation activities. HIGHLIGHTS HPLC-DAD and fast HPLC methods were developed for separation of nine different antibiotics. The combination with the SPE procedure achieved low detection limits; from 0.2 to 3.8 ng/mL for SPE-HPLC-DAD and from 0.65 to 12.2 ng/mL for SPE-fast HPLC.
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Affiliation(s)
- Rania A Mahmoud
- Medical Union Pharmaceuticals Co., R&D-Methodology and Stability Department, Abu Sultan, Ismailia, 41617, Egypt
| | - Ghada M Hadad
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia, 41522, Egypt
| | - Randa A Abdel Salam
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia, 41522, Egypt
| | - Hatem I Mokhtar
- Sinai University-Kantara Branch, Faculty of Pharmacy, Pharmaceutical Chemistry Department, 41636, Egypt
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Abdelshakour MA, Attala K, Elsonbaty A, Abdel Salam RA, Hadad GM, Mostafa AE, Eissa MS. Eco-Friendly UV-Spectrophotometric Methods Employing Magnetic Nano-Composite Polymer for the Extraction and Analysis of Sexual Boosters in Adulterated Food Products: Application of Computer-Aided Design. J AOAC Int 2023; 106:1608-1619. [PMID: 37449906 DOI: 10.1093/jaoacint/qsad084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/10/2023] [Accepted: 07/02/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Solid phase extraction (SPE) techniques, based on computationally designed magnetic-based multi-targeting molecular imprinted polymer (MT-MIP), combined with UV spectrophotometric approaches provide advantages in the examination of counterfeit samples. OBJECTIVE The current work describes an innovative and sustainable methodology for the simultaneous determination of tadalafil (TAD) and dapoxetine hydrochloride (DAP) in aphrodisiac counterfeit products (honey and instant coffee) utilizing SPE exploiting MT-MIP. Additionally, an innovative UV spectrophotometric method capable of resolving TAD in its pharmaceutical binary mixtures with DAP was developed. A novel computational approach was implemented to tailor the synthesis and design of the MT-MIP particles. METHODS We applied a newly developed UV spectrophotometric method which was based on a Fourier self-deconvolution (FSD) method coupled with the isoabsorptive point for determination of TAD and DAP in pharmaceutical dosage form. We also applied an SPE process based on MT-MIP designed particles, assisting in the analysis of both drugs in counterfeit food samples. The SPE process and the UV spectroscopic methodology were assessed regarding their greenness using the pioneering green analytical procedure index (GAPI), analytical greeness including sample preparation (AGREEprep) and AGREE tools. The synthesized MT-MIP particles were characterized by scanning electron microscopy and energy-dispersive x-ray spectroscopy. RESULTS The suggested spectrophotometric methods revealed a wide linear concentration range of 2-50 µg/mL with lower LODs in the range of 0.604-0.994 µg/mL. Additionally, the suggested method demonstrated the utmost sensitivity and eco-friendliness for their target in its mixed dosage form and counterfeit food products. CONCLUSION The SPE process and the developed analytical UV spectroscopic methodology were validated as per the ICH guidelines, and were found to be suitable for overseeing some counterfeiting activities in commercially available honey and instant coffee aphrodisiac products. HIGHLIGHTS An SPE method based on MT-MIP magnetic-based polymer and a UV spectroscopic method were successfully developed for analysis of TAD and DAP in different matrices.
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Affiliation(s)
- Mohamed A Abdelshakour
- Sohag University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Sohag 82524, Egypt
| | - Khaled Attala
- Egyptian Russian University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Badr City, Cairo 11829, Egypt
| | - Ahmed Elsonbaty
- Egyptian Russian University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Badr City, Cairo 11829, Egypt
| | - Randa A Abdel Salam
- Suez Canal University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Ismailia 41522, Egypt
| | - Ghada M Hadad
- Suez Canal University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Ismailia 41522, Egypt
| | - Aziza E Mostafa
- Suez Canal University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Ismailia 41522, Egypt
| | - Maya S Eissa
- Egyptian Russian University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Badr City, Cairo 11829, Egypt
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Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Estimation of Two Diuretics Using Fluorescent Nitrogen Doped Carbon Quantum Dots: Application to Spiked Human Plasma and Tablets. J Fluoresc 2023; 33:2209-2218. [PMID: 37000365 PMCID: PMC10640469 DOI: 10.1007/s10895-023-03217-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 03/17/2023] [Indexed: 04/01/2023]
Abstract
Highly fluorescent nitrogen doped carbon quantum dots (N-CQDs) were prepared by a single-step method based on microwave heating of cane sugar and urea. The produced N-CQDs were applied as nano-sensors for the spectrofluorimetric determination of eplerenone and spironolactone. A strong emission band at 376 nm was obtained after excitation at 216 nm due to the produced N-CQDs. The native fluorescence of N-CQDs was obviously quenched upon adding increased concentrations of each drug. A strong correlation was found between the fluorescence quenching of N-CQDs and the concentration of each drug. The method was found to be linear over the range of 0.5 to 5.0 μg/mL for eplerenone and 0.5 to 6.0 μg/mL for spironolactone with LOQ of 0.383 μg/mL and 0.262 μg/mL. The developed method was further extended for determination of both drugs in their pharmaceutical tablets and spiked human plasma. The results obtained were statistically compared with those of reported methods. The mechanism of fluorescence quenching of N-CQDs by the two drugs was discussed.
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Affiliation(s)
- Mona H Abo Zaid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, 35712, Egypt.
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt.
| | - Nahed El-Enany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, New Mansoura University, New Mansoura, 7723730, Egypt
| | - Aziza E Mostafa
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
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Ibrahim EA, Radwan MM, Gul W, Majumdar CG, Hadad GM, Abdel Salam RA, Ibrahim AK, Ahmed SA, Chandra S, Lata H, ElSohly MA, Wanas AS. Quantitative Determination of Cannabis Terpenes Using Gas Chromatography-Flame Ionization Detector. Cannabis Cannabinoid Res 2023; 8:899-910. [PMID: 36322895 PMCID: PMC10589468 DOI: 10.1089/can.2022.0188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023] Open
Abstract
Background: Cannabis has a long history of being credited with centuries of healing powers for millennia. The cannabis plant is a rich source of cannabinoids and terpenes. Each cannabis chemovar exhibits a different flavor and aroma, which are determined by its terpene content. Methods: In this study, a gas chromatography-flame ionization detector method was developed and validated for the determination of the 10 major terpenes in the main three chemovars of Cannabis sativa L. with n-tridecane used as the internal standard following the standard addition method. The 10 major terpenes (monoterpenes and sesquiterpenes) are α-pinene, β-pinene, β-myrcene, limonene, terpinolene, linalool, α-terpineol, β-caryophyllene, α-humulene, and caryophyllene oxide. The method was validated according to Association of Official Analytical Chemists guidelines. Spike recovery studies for all terpenes were carried out on placebo cannabis material and indoor-growing high THC chemovar with authentic standards. Results: The method was linear over the calibration range of 1-100 μg/mL with r2>0.99 for all terpenes. The limit of detection and limit of quantification were calculated to be 0.3 and 1.0 μg/mL, respectively, for all terpenes. The accuracy (%recovery) at all levels ranged from 89% to 104% and 90% to 111% for placebo and indoor-growing high THC chemovar, respectively. The repeatability and intermediate precision of the method were evaluated by the quantification of target terpenes in the three different C. sativa chemovars, resulting in acceptable relative standard deviations (less than 10%). Conclusions: The developed method is simple, sensitive, reproducible, and suitable for the detection and quantification of monoterpenes and sesquiterpenes in C. sativa biomass.
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Affiliation(s)
- Elsayed A. Ibrahim
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Mohamed M. Radwan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Waseem Gul
- ElSohly Laboratories, Inc., Oxford, Mississippi, USA
| | - Chandrani G. Majumdar
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Ghada M. Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Randa A. Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Amany K. Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Safwat A. Ahmed
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Suman Chandra
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Hemant Lata
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Mahmoud A. ElSohly
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
- ElSohly Laboratories, Inc., Oxford, Mississippi, USA
- Department of Pharmaceutical and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, USA
| | - Amira S. Wanas
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
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E Mostafa A, Eissa MS, Elsonbaty A, Attala K, A Abdel Salam R, M Hadad G, Abdelshakour MA. Computer-Aided Design of Eco-Friendly Imprinted Polymer Decorated Sensors Augmented by Self-Validated Ensemble Modeling Designs for the Quantitation of Drotaverine Hydrochloride in Dosage Form and Human Plasma. J AOAC Int 2023; 106:1361-1373. [PMID: 37140537 DOI: 10.1093/jaoacint/qsad049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/04/2023] [Accepted: 04/23/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Computationally designed molecular imprinted polymer (MIP) incorporation into electrochemical sensors has many advantages to the performance of the designed sensors. The innovative self-validated ensemble modeling (SVEM) approach is a smart machine learning-based (ML) technique that enables the design of more accurate predictive models using smaller data sets. OBJECTIVE The novel SVEM experimental design methodology is exploited here exclusively to optimize the composition of four eco-friendly PVC membranes augmented by a computationally designed magnetic molecularly imprinted polymer to quantitatively determine drotaverine hydrochloride (DVN) in its combined dosage form and human plasma. Furthermore, the application of hybrid computational simulations such as molecular dynamics and quantum mechanical calculations (MD/QM) is a time-saving and eco-friendly provider for the tailored design of the MIP particles. METHOD Here, for the first time, the predictive power of ML is assembled with computational simulations to develop four PVC-based sensors decorated by computationally designed MIP particles using four different experimental designs known as central composite, SVEM-LASSO, SVEM-FWD, and SVEM-PFWD. The pioneering AGREE approach further assessed the greenness of the analytical methods, proving their eco-friendliness. RESULTS The proposed sensors showed decent Nernstian responses toward DVN in the range of 58.60-59.09 mV/decade with a linear quantitative range of 1 × 10-7 - 1 × 10-2 M and limits of detection in the range of 9.55 × 10-8 to 7.08 × 10-8 M. Moreover, the proposed sensors showed ultimate eco-friendliness and selectivity for their target in its combined dosage form and spiked human plasma. CONCLUSIONS The proposed sensors were validated in accordance with International Union of Pure and Applied Chemistry (IUPAC) recommendations, proving their sensitivity and selectivity for drotaverine determination in dosage form and human plasma. HIGHLIGHTS This work presents the first ever application of both the innovative SVEM designs and MD/QM simulations in the optimization and fabrication of drotaverine-sensitive and selective MIP-decorated PVC sensors.
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Affiliation(s)
- Aziza E Mostafa
- Suez Canal University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Ismailia 41522, Egypt
| | - Maya S Eissa
- Egyptian Russian University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Badr City, Cairo 11829, Egypt
| | - Ahmed Elsonbaty
- Egyptian Russian University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Badr City, Cairo 11829, Egypt
| | - Khaled Attala
- Egyptian Russian University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Badr City, Cairo 11829, Egypt
| | - Randa A Abdel Salam
- Suez Canal University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Ismailia 41522, Egypt
| | - Ghada M Hadad
- Suez Canal University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Ismailia 41522, Egypt
| | - Mohamed A Abdelshakour
- Sohag University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Sohag 82524, Egypt
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Samir H, Mahgoub S, Badr JM, El-Gendy A, Hadad GM, Ibrahim EA. A UPLC- MS/MS Method to Quantify β-Sitosterol and Ferulic Acid of Pygeum Africanum Extract in Bulk and Pharmaceutical Preparation. J Chromatogr Sci 2023; 61:619-624. [PMID: 36097799 DOI: 10.1093/chromsci/bmac077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/25/2022] [Accepted: 08/21/2022] [Indexed: 11/13/2022]
Abstract
This study uses a liquid chromatography-electrospray ionization-tandem mass spectrometry method to determine β-Sitosterol and Ferulic acid in Pygeum africanum extract. Chromatographic separation of the two analytes was performed on an ACQUITY UPLC H-Class system coupled with Xevo TQD mass spectrometer and HSS T3 C18 column (2.1 X 50 mm, 1.8 μm). Mobile phase A consisted of an aqueous solution of 0.1% formic acid (v/v), and mobile phase B was 0.1% formic acid (v/v) in methanol pumped through a gradient elution mode. Mass spectrometer parameters were optimized using an electrospray ionization source in the positive and negative ionization modes. The quantification of the two analytes was performed using multiple reaction monitoring transitions. The method was fully validated per (FDA) guidelines regarding linearity, accuracy, precision, carryover and selectivity. The proposed method was applied successfully to determine the two investigated compounds in commercially available pharmaceutical products.
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Affiliation(s)
- Hanan Samir
- Medical administration, students' hospital, Zagazig University, Sharkia 44519, Egypt
| | - Sebaey Mahgoub
- Food Analysis Laboratory, Ministry of Health, Zagazig 44511, Egypt
| | - Jihan M Badr
- Pharmacognosy Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Alaa El-Gendy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Elsayed A Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
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Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Spectrofluorometric determination of cinacalcet hydrochloride: greenness assessment and application to biological fluids and in-vitrodissolution testing. Methods Appl Fluoresc 2023; 11. [PMID: 37459863 DOI: 10.1088/2050-6120/ace81b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/17/2023] [Indexed: 07/27/2023]
Abstract
A facile, simple, green and sensitive spectrofluorometric method was developed for determination of the calcimimetic drug cinacalcet hydrochloride. It is used for the treatment of hyperparathyroidism. The drug showed high native fluorescence intensity at 320 nm after excitation at 280 nm. The method was linear over the range of 5.0-400.0 ng ml-1with excellent correlation (R2= 0.9999). Limit of detection (LOD) and limit of quantitation (LOQ) values were 1.19 and 3.62 ng ml-1, respectively. The percentage recovery was found to be 100.42% ± 1.39 (n=8). The proposed method was successfully applied for determination of cinacalcet in spiked human plasma samples with % recoveries of (87.23 to 109.69%). Two recent greenness metrics (GAPI and Analytical Eco-Scale) were chosen to prove the eco-friendly nature of the method. Furthermore, the proposed method was successfully applied to dissolution study of commercial cinacalcet tablets. The interference likely to be introduced by some commonly co-administrated drugs such as metoprolol and itraconazole was studied; the tolerance limits were calculated.
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Affiliation(s)
- Mona H Abo Zaid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, 35712, Egypt
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Nahed El-Enany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, New Mansoura University, New Mansoura, 7723730, Egypt
| | - Aziza E Mostafa
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
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11
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Ramadan HS, Salam RAA, Hadad GM, Belal F, Salim MM. Eco-friendly simultaneous multi-spectrophotometric estimation of the newly approved drug combination of celecoxib and tramadol hydrochloride tablets in its dosage form. Sci Rep 2023; 13:11716. [PMID: 37474596 PMCID: PMC10359252 DOI: 10.1038/s41598-023-38702-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023] Open
Abstract
Food and Drug Administration (FDA) recently approved co-formulated celecoxib and tramadol for the treatment of acute pain in adults. Three spectrophotometric methods were efficiently applied to estimate the co-formulated Celecoxib and Tramadol in their tablets; second derivative 2D-spectrophotometry technique (method I), induced dual-wavelength technique (method II) and dual-wavelength resolution technique (method III). The proposed methods were successfully validated following the International Council for Harmonisation (ICH) guidelines and statistically assessed based on the correlation coefficients, relative standard deviations as well as detection and quantitation limits. The obtained results revealed non-significant differences compared to the reported results as revealed by the variance ratio F test and Student t test. Moreover, the applied techniques were further assessed concerning their greenness based on the analytical eco-scale method revealing an excellent green scale with a final score of 95. The proposed spectrophotometric techniques could be applied for the routine analysis and quality control of the studied drugs in their dosage form.
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Affiliation(s)
- Hesham Sameh Ramadan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt
| | - Randa A Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Mohamed M Salim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt.
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
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12
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Abdelshakour MA, Eissa MS, Attala K, Elsonbaty A, Abdel Salam RA, Hadad GM, Mostafa AE. Greenness-by-design approach for developing novel UV spectrophotometric methodologies resolving a quaternary overlapping mixture. Arch Pharm (Weinheim) 2023:e2300216. [PMID: 37276368 DOI: 10.1002/ardp.202300216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 06/07/2023]
Abstract
Greenness-by-design (GbD) is an approach that integrates green chemistry principles into the method development stage of analytical processes, aiming to reduce their environmental impact. In this work, we applied GbD to a novel univariate double divisor corrected amplitude (DDCA) method that can resolve a quaternary pharmaceutical mixture in a fixed-dose polypill product. We also used a genetic algorithm as a chemometric modeling technique to select the informative variables for the analysis of the overlapping mixture. This resulted in more accurate and efficient predictive models. We used a computational approach to study the effect of solvents on the spectral resolution of the mixture and to minimize the spectral interferences caused by the solvent, thus achieving spectral resolution with minimal analytical effort and ecological footprint. The validated methods showed wide linear concentration ranges for the four components (1-30 µg/mL for losartan, 2.5-30 µg/mL for atorvastatin and aspirin, and 2.5-35 µg/mL for atenolol) and achieved high scores on the hexagon and spider charts, demonstrating their eco-friendliness.
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Affiliation(s)
- Mohamed A Abdelshakour
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, Egypt
| | - Maya S Eissa
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Egypt
| | - Khaled Attala
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Egypt
| | - Ahmed Elsonbaty
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Egypt
| | - Randa A Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Aziza E Mostafa
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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13
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El-Shorbagy HI, Mohamed MA, El-Gindy A, Hadad GM, Belal F. Development of UPLC method for simultaneous assay of some COVID-19 drugs utilizing novel instrumental standard addition and factorial design. Sci Rep 2023; 13:5466. [PMID: 37016018 PMCID: PMC10071232 DOI: 10.1038/s41598-023-32405-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/27/2023] [Indexed: 04/06/2023] Open
Abstract
A green, rapid, and simple RP-UPLC method was developed and optimized by full factorial design for the simultaneous separation of oseltamivir phosphate, daclatasivir dihydrochloride, and remdesivir, with dexamethasone as a co-administered drug. The separation was established on a UPLC column BEH C18 1.7 µm (2.1 × 100.0 mm) connected with a UPLC pre-column BEH 1.7 µm (2.1 × 5.0 mm) at 25 °C with an injection volume of 10 µL. The detector (PDA) was set at 239 nm. The mobile phase consisted of methanol and ammonium acetate (8.1818 mM) in a ratio of 75.7: 24.3 (v/v). The flow rate was set at 0.048 mL min-1. The overall separation time was 9.5 min. The retention times of oseltamivir phosphate, dexamethasone, daclatasivir dihydrochloride, and remdesivir were 6.323 ± 0.145, 7.166 ± 0.036, 8.078 ± 0.124, and 8.572 ± 0.166 min (eight replicates), respectively. The proposed method demonstrated linearity in the ranges of 10.0-500.0 (ng mL-1) and 0.5-30.0 (µg mL-1) for oseltamivir phosphate, 50.0-5000.0 (ng mL-1) for dexamethasone, 25.0-1000.0 (ng mL-1) and 0.5-25.0 (µg mL-1) for daclatasvir dihydrochlorde, and 10.0-500.0 (ng mL-1) and 0.5-30.0 (µg mL-1) for remdesivir. The coefficients of determination (R2) were greater than 0.9999, with percentage recoveries greater than 99.5% for each drug. The limits of quantitation were 6.4, 1.8, 7.8, and 1.6 ng mL-1, and the limits of detection were 1.9, 0.5, 2.0, and 0.5 ng mL-1 for oseltamivir phosphate, dexamethasone, daclatasivir dihydrochloride, and remdesivir, respectively. The proposed method was highly precise, as indicated by the low percentage of relative standard deviation values of less than 1.2% for each drug. The average content and uniformity of dosage units in the studied drugs' dosage forms were determined. The average contents of oseltamivir phosphate, dexamethasone, daclatasivir dihydrochloride, and remdesivir were nearly 93%, 102%, 99%, and 95%, respectively, while the uniformity of dosage unit values were nearly 92%, 102%, 101%, and 97%. Two novel methods were established in this work. The first method was used to assess the stability of standard solutions. This novel method was based on the slope of regression equations. The second was to evaluate the excipient's interference using an innovative instrumental standard addition method. The novel instrumental standard addition method was performed using the UPLC instrument program. It was more accurate, sensitive, time-saving, economical, and eco-friendly than the classic standard addition method. The results showed that the proposed method can estimate the tested drugs' concentrations without interference from their dosage form excipients. According to the Eco-score (more than 75), the Green Analytical Procedure Index (GAPI), and the AGREE criteria (total score of 0.77), the suggested method was considered eco-friendly.
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Affiliation(s)
- Hanan I El-Shorbagy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt.
| | - Mona A Mohamed
- Pharmaceutical Chemistry Department, Egyptian Drug Authority (EDA), Cairo, Egypt
| | - Alaa El-Gindy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
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14
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Abo Zaid MH, El-Enany N, Mostafa AE, Hadad GM, Belal F. Use of green fluorescent nano-sensors for the determination of furosemide in biological samples and pharmaceutical preparations. BMC Chem 2023; 17:25. [PMID: 36964587 PMCID: PMC10039510 DOI: 10.1186/s13065-023-00937-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 03/13/2023] [Indexed: 03/26/2023] Open
Abstract
BACKGROUND Carbon quantum dots (CQDs) are new class of carbon nanoparticles. Recently, they have been widely used as fluorescent probes due to their easy accessibility, optical properties and chemical inertness. Many available precursors are used in the synthesis of carbon quantum dots. The electrical and optical properties of CQDs could be enhanced by doping hetero atoms such as nitrogen or sulfur into their structure. OBJECTIVE The current work presents the synthesis and characterization of water-soluble nitrogen doped carbon quantum dots (N-CQDs) and their use as fluorescent nano-sensors for the spectrofluorimetric determination of furosemide in its pharmaceutical preparations and spiked human plasma. METHODS A domestic microwave was used to prepare the N-CQDs by heating a solution of sucrose and urea till complete charring (about ten minutes). The produced N-CQDs exhibit a strong emission band at 376 nm after excitation at 216 nm. Furosemide caused a quantitative quenching in the fluorescence intensity of the produced N-CQDs. RESULTS The proposed method was validated according to ICH Guidelines. The method was found to be linear over the range of 0.1-1.0 µg/mL with LOQ of 0.087 µg/ml. CONCLUSION Ecofriendly nano fluorescent sensors (N-CQDs) were successfully synthesized. The size of N-CQDs was distributed in the range of 6.63 nm to 10.23 nm with an average of 8.2 nm. The produced N-CQDs were used as fluorescent probes for the estimation of furosemide in its pharmaceutical preparations as well as spiked human plasma samples.
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Affiliation(s)
- Mona H Abo Zaid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, 35712, Egypt.
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt.
| | - Nahed El-Enany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, New Mansoura University, New Mansoura, 7723730, Egypt
| | - Aziza E Mostafa
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
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15
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Salim MM, Radwan AS, Hadad GM, Belal F, Elkhoudary MM. Green fluorometric strategy for simultaneous determination of the antihypertensive drug telmisartan (A tentative therapeutic for COVID-19) with Nebivolol in human plasma. Sci Rep 2023; 13:3576. [PMID: 36864220 PMCID: PMC9980868 DOI: 10.1038/s41598-023-30400-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 02/22/2023] [Indexed: 03/04/2023] Open
Abstract
Telmisartan (TEL) and Nebivolol (NEB) are frequently co-formulated in a single dosage form that is frequently prescribed for the treatment of hypertension, moreover, telmisartan is currently proposed to be used to treat COVID19-induced lung inflammation. Green rapid, simple, and sensitive synchronous spectrofluorimetric techniques for simultaneous estimation of TEL and NEB in their co-formulated pharmaceutical preparations and human plasma were developed and validated. Synchronous fluorescence intensity at 335 nm was used for TEL determination (Method I). For the mixture, the first derivative synchronous peak amplitudes (D1) at 296.3 and 320.5 nm were used for simultaneous estimation of NEB and TEL, respectively (Method II). The calibration plots were rectilinear over the concentration ranges of 30-550 ng/mL, and 50-800 ng/mL for NEB and TEL, respectively. The high sensitivity of the developed methods allowed for their analysis in human plasma samples. NEB`s Quantum yield was estimated by applying the single-point method. The greenness of the proposed approaches was evaluated using the Eco-scale, National Environmental Method Index (NEMI), and Green Analytical Procedure Index (GAPI) methods.
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Affiliation(s)
- Mohamed M Salim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt.
| | - Aya Saad Radwan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mahmoud M Elkhoudary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt
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16
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El-Waey AA, Abdel-Salam RA, Hadad GM, El-Gindy A. Eco friendly stability indicating HPTLC method for simultaneous determination of sofosbuvir and ledipasvir in pharmaceutical tablets and HPTLC-MS characterization of their degradation products. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Hameed EAA, Abd-ElHamid GH, El-Darder OM, Ibrahim AK, Salam RAA, Hadad GM, Abdelshakour MA. Fast Sensitive and Accurate Analysis of the Most Common Synthetic Food Colorants in 65 Egyptian Commercial Products Using New HPLC–DAD and UPLC-ESI–MS/MS Methods. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02370-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractOverexposure to food colorants above the allowed daily intake (ADI) level can provoke hyperactivity and other disturbed behaviors especially in children. Two new methods were developed to separate five synthetic colorants, which were Tartrazine (E102), Sunset Yellow (E110), Allura Red (E129), Carmoisine (E122), and Brilliant Blue (E133). They are labeled on a large variety of commercial food products in the Egyptian market without mentioning their definite concentrations. Therefore, there was a real need to determine these colorants with simple, accurate, and fast methods. This is the first study to determine these colorants in a wide variety of food products present in the Egyptian market. The HPLC approach with photodiode array detection was developed to quantify these colorants, on a C18 column, with a mobile phase composed of acetonitrile and water containing 1% ammonium acetate (pH 6.8), separation was carried out using a gradient program. The colorants were eluted and efficiently separated within 9 min. Then, as a complementary technique to HPLC, the UPLC-ESI–MS/MS approach was developed for identification and accurate mass measurement of the colorants found in high concentrations, the colorants were obtained simultaneously in negative mode, the run time was only 3 min. These developed methods were validated according to ICH recommendations and they were applied to analyze 65 food products including jelly powder, puddings, ice cream powders, concentrated soft drink powders, carbonated drinks, chewing gums, and sugar confectionery.
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18
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Radwan AS, Elkhoudary MM, Hadad GM, Belal F, Salim MM. A highly sensitive spectrofluorimetric method for the determination of bilastine in its pharmaceutical preparations and biological fluids. Spectrochim Acta A Mol Biomol Spectrosc 2022; 276:121246. [PMID: 35429867 DOI: 10.1016/j.saa.2022.121246] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Allergic rhinitis and urticaria are extremely prevalent among all age groups. From the clinical experience, usually, an essential second-generation non-sedating H1-antihistaminic drug, such as bilastine is given to relieve allergic symptoms. Bilastine is preferred to be used instead of oral corticosteroids and first -generation sedating H1-antihistaminics to avoid their side effects. A highly sensitive and simple spectrofluorometric method was developed and validated for the determination of bilastine in its dosage forms and biological fluids. The quantum yield was calculated and was found to be as high as 0.48. Aqueous water solution of bilastine gives high native fluorescence emission at 298 nm after excitation at 272 nm. A rectilinear calibration plot was obtained over the concentration range of 1.0-50.0 ng mL-1. The limits of quantitation and detection were 1.0 and 0.33 ng mL-1, respectively. The parameters influencing its spectrofluorimetric behavior, viz, type of solvent, pH and organized media were studied. The proposed method was successfully applied for the determination of the drug in pharmaceutical dosage form and the results obtained were in good agreement with those of given by reported method. The high sensitivity of the proposed method enabled the estimation of the drug in biological matrices, including human plasma and urine samples after simple protein precipitation, and the results obtained were satisfactory.
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Affiliation(s)
- Aya Saad Radwan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt.
| | - Mahmoud M Elkhoudary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed M Salim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University- Egypt, New Damietta, Egypt; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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19
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Mokhtar HI, Abdel-Salam RA, Hadad GM. A nanocomposite of silica coated magnetite nanoparticles and aniline-anthranilic acid co-polymeric nanorods with improved stability and selectivity for fluoroquinolones dispersive micro solid phase extraction. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1206:123350. [PMID: 35780746 DOI: 10.1016/j.jchromb.2022.123350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 11/19/2022]
Abstract
Adsorbents composed of polyaniline nanostructures or their derivatives immobilized on magnetic nanoparticles had gained increasing interest for application in dispersive micro-solid phase extraction. However, reproducible binding between polymeric PANI nanopaterials and magnetic nanomaterials are still a challenging task. Furthermore, other challenges are the enhancement of physical and chemical stability of adsorbent magnetic nanoparticles as well as improvement of polymeric PANI nanoparticles selectivity towards target analytes. This work described the reproducible preparation of a nanocomposite of aniline-anthranilic acid co-polymeric nanorods with silica coated magnetite nanoparticles by physical mixing of its basic components. The prepared nanocomposite had proven stability against chemical and atmospheric attack. The formed nanocomposite in this work had advantages regarding stability and selectivity towards fluoroquinolones as compared with analogues prepared from polyaniline polymers and/or uncoated magnetite nanoparticles. The selectivity of the formed adsorbent was further optimized for microextraction of four fluoroquinolone antibacterial agents. The application of the prepared nanocomposite was exemplified in microextraction of the studied fluoroquinolones from spiked milk samples to enable their detection down to their stated maximum residue limits.
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Affiliation(s)
- Hatem I Mokhtar
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Sinai University, Kantara Branch, Kantara Sharq, Ismailia,41636, Egypt
| | - Randa A Abdel-Salam
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.
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20
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Saad Radwan A, Salim MM, Hadad GM, Belal F, Elkhoudary MM. Simultaneous estimation of recently FDA approved co-formulated ophthalmic solution benoxinate and fluorescein: Application to aqueous humor. Spectrochim Acta A Mol Biomol Spectrosc 2022; 267:120599. [PMID: 34810099 DOI: 10.1016/j.saa.2021.120599] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/20/2021] [Accepted: 11/06/2021] [Indexed: 06/13/2023]
Abstract
Nine simple, cost-effective, and sensitive spectrophotometric methods were developed to simultaneously assay benoxinate HCl and fluorescein sodium in their co-formulated eye drops without barring common excipients. A direct UV spectrophotometric method (method I) was developed for their FLU assay at 481 nm over the concentration range of 0.6-10.0 μg mL-1. Meanwhile, BEN was assayed over the concentration range of 1.0-25.0 μg mL-1 by different UV based methods, namely, conventional dual-wavelength method (DW) (method II), first derivative1D spectrophotometry (method III), second derivative2D spectrophotometry (method IV), ratio spectra difference spectrophotometry (method V), the first derivative of ratio spectra (method VI), ratio subtraction method (method VII), isosbestic point method (ISP) (method VIII) and absorption factor method (method IX). The performance of the proposed methods was assessed relying on the correlation coefficients, relative standard deviations, and limits of detection and quantitation. The variance ratio F-test and Student t-test showed no significant differences between the obtained results of the developed methods and those of reference methods. The proposed methods were also applied to determine studied drugs in commercial eye drops and aqueous humor.
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Affiliation(s)
- Aya Saad Radwan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt.
| | - Mohamed M Salim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mahmoud M Elkhoudary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt
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21
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Abdelhameed RFA, Elhady SS, Sirwi A, Samir H, Ibrahim EA, Thomford AK, El Gindy A, Hadad GM, Badr JM, Nafie MS. Thonningia sanguinea Extract: Antioxidant and Cytotoxic Activities Supported by Chemical Composition and Molecular Docking Simulations. Plants (Basel) 2021; 10:2156. [PMID: 34685963 PMCID: PMC8539418 DOI: 10.3390/plants10102156] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/04/2021] [Accepted: 10/04/2021] [Indexed: 12/09/2022]
Abstract
The current study was designed to investigate the antioxidant and cytotoxic activities of Thonningia sanguinea whole-plant extract. The total phenolic content was determined using Folin-Ciocalteu reagent and found to be 980.1 mg/g, calculated as gallic acid equivalents. The antioxidant capacity was estimated for the crude extract and the phenolic portion of T. sanguinea, whereupon both revealed a dose-dependent scavenging rate of DPPH• with EC50 values of 36.33 and 11.14 µg/mL, respectively. Chemical profiling of the plant extract was achieved by LC-ESI-TOF-MS/MS analysis, where 17 compounds were assigned, including ten compounds detected in the negative mode and seven detected in the positive mode. The phenolic portion exhibited promising cytotoxic activity against MCF-7 and HepG2 cells, with IC50 values of 16.67 and 13.51 μg/mL, respectively. Phenolic extract treatment caused apoptosis in MCF-7 cells, with total apoptotic cell death 18.45-fold higher compared to untreated controls, arresting the cell cycle at G2/M by increasing the G2 population by 39.7%, compared to 19.35% for the control. The apoptotic investigation was further validated by the upregulation of proapoptotic genes of P53, Bax, and caspases-3,8 9, and the downregulation of Bcl-2 as the anti-apoptotic gene. Bcl-2 inhibition was also virtualized by good binding interactions through a molecular docking study. Taken together, phenolic extract exhibited promising cytotoxic activity in MCF-7 cells through apoptosis induction and antioxidant activation, so further fractionation studies are recommended for the phenolic extract for specifying the most active compound to be developed as a novel anti-cancer agent.
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Affiliation(s)
- Reda F. A. Abdelhameed
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;
| | - Sameh S. Elhady
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (S.S.E.); (A.S.)
| | - Alaa Sirwi
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (S.S.E.); (A.S.)
| | - Hanan Samir
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (H.S.); (E.A.I.); (A.E.G.); (G.M.H.)
- Medical Administration, Student’s Hospital, Zagazig University, Zagazig 44519, Egypt
| | - Elsayed A. Ibrahim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (H.S.); (E.A.I.); (A.E.G.); (G.M.H.)
| | - Ama Kyeraa Thomford
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast PMB TF0494, Ghana;
| | - Alaa El Gindy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (H.S.); (E.A.I.); (A.E.G.); (G.M.H.)
| | - Ghada M. Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (H.S.); (E.A.I.); (A.E.G.); (G.M.H.)
| | - Jihan M. Badr
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;
| | - Mohamed S. Nafie
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt;
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Moussad RI, Abdel Salam RA, Hadad GM, EL Gindy A, Foudah AI, Abdel Hameed EA. A novel HPLC method for simultaneous quantification of eleven phenolic antioxidants in commercial personal care and food products which contain extracts of green apple, pomegranate and argan oil. ACTA CHROMATOGR 2021. [DOI: 10.1556/1326.2020.00860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
In this study, a simple, fully validated and rapid reversed-phase HPLC with photodiode array detector method was developed for the simultaneous determination of 11 selected phenolic antioxidants over 33 min in personal care and food samples containing extracts of green apple, pomegranate (Ponica granatum) and argan oil (Argania spinosa). The method was performed using NUCLEODUR C18 column 5 µm particle size and 12.5 cm length. The HPLC mobile phase was prepared as follows, solution A: 1% aqueous acetic acid and solution B: Acetonitrile. The method was gradient at flow rate 1.0 mL/min with a simple mobile phase, minimal sample preparation, and diminished organic solvent usage (3% acetonitrile for almost 90% of the run time). The detection was carried out at 278 nm. The method presented good precision and accuracy with RSD% values ranged between 0.33 and 1.94% and wide linear range. The developed method was successfully applied on 67 personal care and food products present in Egyptian market and can be used for routine screening in laboratory for the regular quality control of the antioxidant content for products containing the mentioned extracts.
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Affiliation(s)
| | - Randa A. Abdel Salam
- 2 Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
- 3 Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sinai University, Kantara Branch, Sinai, Egypt
| | - Ghada M. Hadad
- 2 Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Alaa EL Gindy
- 2 Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ahmed I. Foudah
- 4 Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, AlKharj, Saudi Arabia
| | - Eman A. Abdel Hameed
- 5 Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University, Port Said, Egypt
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Abdelshakour MA, Abdel Salam RA, Hadad GM, Abo-ElMatty DM, Abdel Hameed EA. HPLC-UV and UPLC-MS/MS methods for the simultaneous analysis of sildenafil, vardenafil, and tadalafil and their counterfeits dapoxetine, paroxetine, citalopram, tramadol, and yohimbine in aphrodisiac products. RSC Adv 2021; 11:8055-8064. [PMID: 35423308 PMCID: PMC8695090 DOI: 10.1039/d0ra10324a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/03/2021] [Indexed: 12/03/2022] Open
Abstract
In recent times, the counterfeiting of pharmaceuticals has been considered a serious trouble especially in developing countries that acquire poor inspection programs. Sildenafil, vardenafil and tadalafil (phosphodiesterase type 5 inhibitors) products have gained wide popularity in treating sexual disorders, for which they are subjected to counterfeiting. For this purpose, a simple, rapid, and novel HPLC method with ultraviolet detection has been simply developed for the simultaneous determination of vardenafil, sildenafil, and tadalafil, and their counterfeits (dapoxetine, paroxetine, citalopram, tramadol and yohimbine) in pharmaceutical dosage forms and counterfeit products such as instant coffee and honey. The separation was carried out on a C18 column, with acetonitrile and an aqueous 0.05% formic acid solution as the mobile phase with a gradient program and at a flow rate of 1 mL min-1. UV detection was accurately set at 230 nm. The total run time was 11 min for elution of these eight drugs. A UPLC-MS/MS method was also developed, by which compounds were separated in only 6 min, and it was used as a confirmatory tool for studied compounds by identification of their mass spectra. Proposed methods were validated by following ICH guidelines. Both methods were found to be linear, specific, precise and accurate, and they were efficiently applied to analyze 50 commercial products including honey sachets, instant coffee and pharmaceutical products marketed as aphrodisiacs and suspected to contain PDE5-inhibitors.
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Affiliation(s)
| | - Randa A Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University Ismailia Egypt
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sinai University, Kantara Branch Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University Ismailia Egypt
| | - Dina M Abo-ElMatty
- Department of Biochemistry, Faculty of Pharmacy, Suez Canal University Ismailia Egypt
| | - Eman A Abdel Hameed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University Egypt +20-64-3561877 +20-01224448268
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Abdelshakour MA, Hadad GM, Abdel Salam RA, Abo-ElMatty DM, Abdel Hameed EA. HPLC and UPLC-MS/MS methods for analyzing TRAMADOL in 70 medicinal illegal products: Application to counterfeit study. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abdel Hady KK, Abdel Salam RA, Hadad GM, Abdel Hameed EA. Simultaneous HPLC determination of vildagliptin, ampicillin, sulbactam and metronidazole in pharmaceutical dosage forms and human urine. J IRAN CHEM SOC 2020. [DOI: 10.1007/s13738-020-02065-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Elkhoudary MM, Selim BM, AbdelSalam RA, Hadad GM, El-Gindy A. Development and validation of a simple HPTLC method for the determination of new hepatitis C subtype 4 antiviral agents in their tablet dosage form. JPC-J PLANAR CHROMAT 2020. [DOI: 10.1007/s00764-019-00006-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Hadad GM, El-Gindy A, Mahmoud WMM. Development and Validation of Chemometrics-Assisted Spectrophotometry and Liquid Chromatography Methods for the Simultaneous Determination of the Active Ingredients in Two Multicomponent Mixtures Containing Chlorpheniramine Maleate and Phenylpropanolamine Hydrochloride. J AOAC Int 2019. [DOI: 10.1093/jaoac/90.4.957] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Multivariate spectrophotometric calibration and liquid chromatography (LC) methods were used for the simultaneous determination of the active ingredients in 2 multicomponent mixtures containing chlorpheniramine maleate and phenylpropanolamine hydrochloride with ibuprofen and caffeine (mixture 1) or with propyphenazone (mixture 2). For the multivariate spectrophotometric calibration methods, principal component regression (PCR) and partial least squares (PLS-1), a calibration set of the mixtures consisting of the components of each mixture was prepared in distilled water. A leave-1-out cross-validation procedure was used to find the optimum numbers of latent variables. Analytical parameters such as sensitivity, selectivity, analytical sensitivity, limit of quantitation, and limit of detection were determined for both PLS-1 and PCR. The LC method depends on the use of a cyanopropyl column with the mobile phase acetonitrile-12 mM ammonium acetate, pH 5.0 (25 + 75, v/v), for mixture 1 or acetonitrile10 mM potassium dihydrogen phosphate, pH 4.7 (45 + 55, v/v), for mixture 2; the UV detector was set at 212 nm. In spite of the presence of a high degree of spectral overlap of these components, they were rapidly and simultaneously determined with high accuracy and precision, with no interference from the matrix excipients. The proposed methods were successfully applied to the analysis of pharmaceutical formulations and laboratory-prepared mixtures containing the 2 multicomponent combinations.
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Affiliation(s)
- Ghada M Hadad
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
| | - Alaa El-Gindy
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
| | - Waleed M M Mahmoud
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
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Emara S, El-Gindy A, Mesbah MK, Hadad GM. Direct Injection Liquid Chromatographic Technique for Simultaneous Determination of Two Antihistaminic Drugs and Their Main Metabolites in Serum. J AOAC Int 2019. [DOI: 10.1093/jaoac/90.2.384] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A very simple liquid chromatographic technique was developed and validated for the simultaneous determination of 2 antihistaminic drugs, loratadine (LT) and terfenadine (TR), and their major active metabolites, desloratadine (DL) and fexofenadine (FX), respectively, in human serum. LT, DL, TR, and FX from directly injected serum samples were enriched on a protein-coated RP8 silica precolumn (10 4.6 mm id) while serum constituents, such as proteins and salts, were eluted to waste. Using an online column-switching system, the drugs and their metabolites were quantitatively transferred and separated on a second analytical column (Shim-pack 5 μm particle size cyanopropyl, 250 × 4.6 mm id) followed by ultraviolet detection at 243 nm for LT and DL and 220 nm for TR and FX. Very good precision, accuracy, and linearity were obtained over the range of 101000 ng/mL for LT and DL, 10500 ng/mL for TR, and 103000 ng/mL for FX in human serum. High extraction recoveries from serum ranging from 96.03 to 98.19, 95.44 to 97.26, 95.61 to 98.17, and 95.60 to 97.89 for LT, DL, TR, and FX, respectively, were obtained.
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Affiliation(s)
- Samy Emara
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
| | - Alaa El-Gindy
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
| | - Mostafa K Mesbah
- Suez Canal University, Faculty of Pharmacy, Pharmacognosy Department, Ismailia 41522, Egypt
| | - Ghada M Hadad
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
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El-Gindy A, Emara S, Mesbah MK, Hadad GM. Liquid Chromatography and Chemometric-Assisted Spectrophotometric Methods for the Analysis of Two Multicomponent Mixtures Containing Cough Suppressant Drugs. J AOAC Int 2019. [DOI: 10.1093/jaoac/88.4.1069] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Three methods were applied for the analysis of 2 multicomponent mixtures containing dextromethorphan hydrobromide, phenylephrine hydrochloride, chlorpheniramine maleate, methylparaben, and propylparaben, together with either sodium benzoate (Mix 1) or ephedrine hydrochloride and benzoic acid (Mix 2). In the first method, liquid chromatography was used for their simultaneous determination using an ODS column with a mobile phase consisting of acetonitrile–phosphate buffer, pH 2.7 (40 + 60, v/v), containing 5mM heptanesulfonic acid sodium salt and ultraviolet (UV) detection at 214 nm. Also, 2 chemometric methods, principal component regression, and partial least squares were used. For both chemometric calibrations, a concentration set of the mixture consisting of each compound in each mixture was prepared in distilled water. The absorbance data in the UV spectra were measured for the 76 or 71 wavelength points in the spectral region 210–240 or 210–224 nm considering the intervals of Δλ = 0.4 or 0.2 nm for Mix 1 and Mix 2, respectively. The 2 chemometric methods did not require any separation step. These methods were successfully applied for the analysis of the 2 multicomponent combinations in synthetic mixtures and in commercial syrups, and the results were compared with each other.
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Affiliation(s)
- Alaa El-Gindy
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
| | - Samy Emara
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
| | - Mostafa K Mesbah
- Suez Canal University, Faculty of Pharmacy, Pharmacognosy Department, Ismailia 41522, Egypt
| | - Ghada M Hadad
- Suez Canal University, Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ismailia 41522, Egypt
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El-Wekil MM, Abdelhady KK, Abdel Salam RA, Hadad GM, Ali R. Facile synthesis of novel nanocomposite prepared from spinel copper ferrite and reduced graphene oxide in the presence of anti-fouling agent diethyl ammonium acid sulphate for ultrasensitive detection of rosuvastatin in human plasma. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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El-Wekil MM, Abdelhady KK, Abdel Salam RA, Hadad GM. Applications of Fourier transform infrared spectroscopic method for simultaneous quantitation of some hypoglycemic drugs in their binary mixtures. Spectrochim Acta A Mol Biomol Spectrosc 2019; 213:249-253. [PMID: 30703707 DOI: 10.1016/j.saa.2019.01.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 01/06/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
Cost-effective, green, simple and reliable transmission Fourier-transform infrared (FTIR) spectroscopic method was developed for simultaneous analysis of hypoglycemic drugs in their binary mixtures for the first time. The FTIR method was applied for the determination of vildagliptin (VILD), glimepiride (GLIM) and pioglitazone (PIOG) in binary mixture with metformin (METF). The method was validated according to the International Conference on Harmonization (ICH) guidelines. The obtained results (expressed in peak areas) are linear with concentration in the range of 0.61-20, 0.26-24 and 0.37-4 μg/mg for VILD, PIOG and GLIM, respectively while the linearity ranges for METF were 0.40-200, 0.26-800 and 0.19-1000 μg/mg with VILD, PIOG and GLIM, respectively. The limits of detection (LODs) were 0.20, 0.08 and 0.12 μg/mg for VILD, PIOG and GLIM, respectively while METF LODs were 0.13, 0.08 and 0.06 μg/mg with VILD, PIOG and GLIM, respectively. The FTIR method has been successfully applied for the determination of the cited binary mixtures in its pharmaceutical tablets and the obtained results showed satisfactory % recovery.
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Affiliation(s)
- Mohamed M El-Wekil
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt.
| | - Khaled K Abdelhady
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-azhar University, Assuit, Egypt
| | - Randa A Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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Ibrahim EA, Wang M, Radwan MM, Wanas AS, Majumdar CG, Avula B, Wang YH, Khan IA, Chandra S, Lata H, Hadad GM, Abdel Salam RA, Ibrahim AK, Ahmed SA, ElSohly MA. Analysis of Terpenes in Cannabis sativa L. Using GC/MS: Method Development, Validation, and Application. Planta Med 2019; 85:431-438. [PMID: 30646402 DOI: 10.1055/a-0828-8387] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Terpenes are the major components of the essential oils present in various Cannabis sativa L. varieties. These compounds are responsible for the distinctive aromas and flavors. Besides the quantification of the cannabinoids, determination of the terpenes in C. sativa strains could be of importance for the plant selection process. At the University of Mississippi, a GC-MS method has been developed and validated for the quantification of terpenes in cannabis plant material, viz., α-pinene, β-pinene, β-myrcene, limonene, terpinolene, linalool, α-terpineol, β-caryophyllene, α-humulene, and caryophyllene oxide. The method was optimized and fully validated according to AOAC (Association of Official Analytical Chemists) guidelines against reference standards of selected terpenes. Samples were prepared by extraction of the plant material with ethyl acetate containing n-tridecane solution (100 µg/mL) as the internal standard. The concentration-response relationship for all analyzed terpenes using the developed method was linear with r2 values > 0.99. The average recoveries for all terpenes in spiked indoor cultivated samples were between 95.0 - 105.7%, with the exception of terpinolene (67 - 70%). The measured repeatability and intermediate precisions (% relative standard deviation) in all varieties ranged from 0.32 to 8.47%. The limit of detection and limit of quantitation for all targeted terpenes were determined to be 0.25 and 0.75 µg/mL, respectively. The proposed method is highly selective, reliable, and accurate and has been applied to the simultaneous determination of these major terpenes in the C. sativa biomass produced by our facility at the University of Mississippi as well as in confiscated marijuana samples.
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Affiliation(s)
- Elsayed A Ibrahim
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Mei Wang
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
| | - Mohamed M Radwan
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
- Pharmacognosy Department, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Amira S Wanas
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
- Pharmacognosy Department, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Chandrani G Majumdar
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
| | - Baharthi Avula
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
| | - Yan-Hong Wang
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
- Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Suman Chandra
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
| | - Hemant Lata
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Randa A Abdel Salam
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Amany K Ibrahim
- Pharmacognosy Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Safwat A Ahmed
- Pharmacognosy Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Mahmoud A ElSohly
- National Center for Natural Products Research, University of Mississippi, University, MS, USA
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, USA
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Mokhtar HI, Abdel-Salam RA, Hadad GM. Tolerance intervals modeling for design space of a salt assisted liquid-liquid microextraction of trimethoprim and six common sulfonamide antibiotics in environmental water samples. J Chromatogr A 2019; 1586:18-29. [DOI: 10.1016/j.chroma.2018.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/18/2018] [Accepted: 12/01/2018] [Indexed: 10/27/2022]
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Saraya RE, Salam RAA, Hadad GM. Stability-indicating high-performance thin-layer chromatographic determination of ondansetron in pure form and pharmaceutical formulations. JPC-J PLANAR CHROMAT 2018. [DOI: 10.1556/1006.2018.31.2.5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Roshdy E. Saraya
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Randa A. Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M. Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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Ibrahim EA, Gul W, Gul SW, Stamper BJ, Hadad GM, Abdel Salam RA, Ibrahim AK, Ahmed SA, Chandra S, Lata H, Radwan MM, ElSohly MA. Determination of Acid and Neutral Cannabinoids in Extracts of Different Strains of Cannabis sativa Using GC-FID. Planta Med 2018; 84:250-259. [PMID: 29237190 DOI: 10.1055/s-0043-124088] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Cannabis (Cannabis sativa L.) is an annual herbaceous plant that belongs to the family Cannabaceae. Trans-Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD) are the two major phytocannabinoids accounting for over 40% of the cannabis plant extracts, depending on the variety. At the University of Mississippi, different strains of C. sativa, with different concentration ratios of CBD and Δ9-THC, have been tissue cultured via micropropagation and cultivated. A GC-FID method has been developed and validated for the qualitative and quantitative analysis of acid and neutral cannabinoids in C. sativa extracts. The method involves trimethyl silyl derivatization of the extracts. These cannabinoids include tetrahydrocannabivarian, CBD, cannabichromene, trans-Δ8-tetrahydrocannabinol, Δ9-THC, cannabigerol, cannabinol, cannabidiolic acid, cannabigerolic acid, and Δ9-tetrahydrocannabinolic acid-A. The concentration-response relationship of the method indicated a linear relationship between the concentration and peak area ratio with R2 > 0.999 for all 10 cannabinoids. The precision and accuracy of the method were found to be ≤ 15% and ± 5%, respectively. The limit of detection range was 0.11 - 0.19 µg/mL, and the limit of quantitation was 0.34 - 0.56 µg/mL for all 10 cannabinoids. The developed method is simple, sensitive, reproducible, and suitable for the detection and quantitation of acidic and neutral cannabinoids in different extracts of cannabis varieties. The method was applied to the analysis of these cannabinoids in different parts of the micropropagated cannabis plants (buds, leaves, roots, and stems).
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Affiliation(s)
- Elsayed A Ibrahim
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, United States of America
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Waseem Gul
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, United States of America
- ElSohly Laboratories Inc., 5 Industrial Park Drive, Oxford, Mississippi, United States of America
| | - Shahbaz W Gul
- ElSohly Laboratories Inc., 5 Industrial Park Drive, Oxford, Mississippi, United States of America
| | - Brandon J Stamper
- ElSohly Laboratories Inc., 5 Industrial Park Drive, Oxford, Mississippi, United States of America
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi, United States of America
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Randa A Abdel Salam
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Amany K Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Safwat A Ahmed
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Suman Chandra
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, United States of America
| | - Hemant Lata
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, United States of America
| | - Mohamed M Radwan
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, United States of America
| | - Mahmoud A ElSohly
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, United States of America
- ElSohly Laboratories Inc., 5 Industrial Park Drive, Oxford, Mississippi, United States of America
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, United States of America
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36
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Saraya RE, Abdel Salam RA, Hadad GM. High-performance thin-layer chromatography method for the simultaneous determination of itopride, pantoprazole, and mosapride in their formulations and spiked human plasma. JPC-J PLANAR CHROMAT 2017. [DOI: 10.1556/1006.2017.30.4.10] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Roshdy E. Saraya
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Randa A. Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M. Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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37
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Elkhoudary MM, Naguib IA, Abdel Salam RA, Hadad GM. Comparison between Two Linear Supervised Learning Machines' Methods with Principle Component Based Methods for the Spectrofluorimetric Determination of Agomelatine and Its Degradants. J Fluoresc 2017; 27:1149-1160. [PMID: 28251418 DOI: 10.1007/s10895-017-2050-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 02/19/2017] [Indexed: 01/27/2023]
Abstract
Four accurate, sensitive and reliable stability indicating chemometric methods were developed for the quantitative determination of Agomelatine (AGM) whether in pure form or in pharmaceutical formulations. Two supervised learning machines' methods; linear artificial neural networks (PC-linANN) preceded by principle component analysis and linear support vector regression (linSVR), were compared with two principle component based methods; principle component regression (PCR) as well as partial least squares (PLS) for the spectrofluorimetric determination of AGM and its degradants. The results showed the benefits behind using linear learning machines' methods and the inherent merits of their algorithms in handling overlapped noisy spectral data especially during the challenging determination of AGM alkaline and acidic degradants (DG1 and DG2). Relative mean squared error of prediction (RMSEP) for the proposed models in the determination of AGM were 1.68, 1.72, 0.68 and 0.22 for PCR, PLS, SVR and PC-linANN; respectively. The results showed the superiority of supervised learning machines' methods over principle component based methods. Besides, the results suggested that linANN is the method of choice for determination of components in low amounts with similar overlapped spectra and narrow linearity range. Comparison between the proposed chemometric models and a reported HPLC method revealed the comparable performance and quantification power of the proposed models.
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Affiliation(s)
- Mahmoud M Elkhoudary
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, University of Tabuk, Tabuk, Kingdom of Saudi Arabia. .,Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.
| | - Ibrahim A Naguib
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, University of Tabuk, Tabuk, Kingdom of Saudi Arabia.,Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Alshaheed Shehata Ahmad Hegazy St, Beni-Suef, 62514, Egypt
| | - Randa A Abdel Salam
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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38
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Elkhoudary M, Abdel Salam RA, Hadad GM. Resolution and quantification challenge of modern chemometric models in the determination of anti-migraine tablets containing ergotamine, caffeine, acetaminophen, and metoclopramide. RSC Adv 2017. [DOI: 10.1039/c7ra00257b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Unique mixture of ergotamine (ERG), metoclopramide (MET), caffeine (CAF) and the study presents a comparison between five multivariate models in the determination of the paracetamol (PAR) in laboratory mixtures and in pharmaceutical formulations.
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Affiliation(s)
- Mahmoud M. Elkhoudary
- Pharmaceutical Chemistry Department
- Faculty of Pharmacy
- University of Tabuk
- Tabuk
- Kingdom of Saudi Arabia
| | - Randa A. Abdel Salam
- Pharmaceutical Analytical Chemistry Department
- Faculty of Pharmacy
- Suez Canal University
- Ismailia
- Egypt
| | - Ghada M. Hadad
- Pharmaceutical Analytical Chemistry Department
- Faculty of Pharmacy
- Suez Canal University
- Ismailia
- Egypt
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39
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Elkhoudary MM, Abdel Salam RA, Hadad GM. Development and Optimization of HPLC Analysis of Metronidazole, Diloxanide, Spiramycin and Cliquinol in Pharmaceutical Dosage Forms Using Experimental Design. J Chromatogr Sci 2016; 54:1701-1712. [PMID: 27621138 DOI: 10.1093/chromsci/bmw126] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 06/23/2016] [Indexed: 11/15/2022]
Abstract
A new simple, sensitive, rapid and accurate gradient reversed-phase high-performance liquid chromatography with photodiode array detector (RP-HPLC-DAD) was developed and validated for simultaneous analysis of Metronidazole (MNZ), Spiramycin (SPY), Diloxanidefuroate (DIX) and Cliquinol (CLQ) using statistical experimental design. Initially, a resolution V fractional factorial design was used in order to screen five independent factors: the column temperature (°C), pH, phosphate buffer concentration (mM), flow rate (ml/min) and the initial fraction of mobile phase B (%). pH, flow rate and initial fraction of mobile phase B were identified as significant, using analysis of variance. The optimum conditions of separation determined with the aid of central composite design were: (1) initial mobile phase concentration: phosphate buffer/methanol (50/50, v/v), (2) phosphate buffer concentration (50 mM), (3) pH (4.72), (4) column temperature 30°C and (5) mobile phase flow rate (0.8 ml min-1). Excellent linearity was observed for all of the standard calibration curves, and the correlation coefficients were above 0.9999. Limits of detection for all of the analyzed compounds ranged between 0.02 and 0.11 μg ml-1; limits of quantitation ranged between 0.06 and 0.33 μg ml-1 The proposed method showed good prediction ability. The optimized method was validated according to ICH guidelines. Three commercially available tablets were analyzed showing good % recovery and %RSD.
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Affiliation(s)
- Mahmoud M Elkhoudary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sinai University, El Arish, North Sinai, Egypt.,Department of Medicinal Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudia Arabia
| | - Randa A Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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40
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Abdel Hameed EA, Abdel Salam RA, Hadad GM. Development of an optimized HPLC method for the simultaneous determination of six compounds containing β-lactam ring in human plasma and urine using experimental design methodology. RSC Adv 2016. [DOI: 10.1039/c5ra23350j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
β-Lactam antibiotics are commonly prescribed with β-lactamase inhibitors to patients, for that it is necessary to develop an optimized chromatographic method which determine them simultaneously in biological fluids.
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Affiliation(s)
- Eman A. Abdel Hameed
- Pharmaceutical Analytical Chemistry Department
- Faculty of Pharmacy
- Suez Canal University
- Ismailia 41522
- Egypt
| | - Randa A. Abdel Salam
- Pharmaceutical Analytical Chemistry Department
- Faculty of Pharmacy
- Suez Canal University
- Ismailia 41522
- Egypt
| | - Ghada M. Hadad
- Pharmaceutical Analytical Chemistry Department
- Faculty of Pharmacy
- Suez Canal University
- Ismailia 41522
- Egypt
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41
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Mokhtar HI, Abdel-Salam RA, Hadad GM. Development of a fast high performance liquid chromatographic screening system for eight antidiabetic drugs by an improved methodology of in-silico robustness simulation. J Chromatogr A 2015; 1399:32-44. [DOI: 10.1016/j.chroma.2015.04.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 04/14/2015] [Accepted: 04/21/2015] [Indexed: 10/23/2022]
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42
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Abdel Hameed EA, Abdel Salam RA, Hadad GM. Chemometric-assisted spectrophotometric methods and high performance liquid chromatography for simultaneous determination of seven β-blockers in their pharmaceutical products: a comparative study. Spectrochim Acta A Mol Biomol Spectrosc 2015; 141:278-286. [PMID: 25681811 DOI: 10.1016/j.saa.2015.01.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 01/06/2015] [Accepted: 01/18/2015] [Indexed: 06/04/2023]
Abstract
Chemometric-assisted spectrophotometric methods and high performance liquid chromatography (HPLC) were developed for the simultaneous determination of the seven most commonly prescribed β-blockers (atenolol, sotalol, metoprolol, bisoprolol, propranolol, carvedilol and nebivolol). Principal component regression PCR, partial least square PLS and PLS with previous wavelength selection by genetic algorithm (GA-PLS) were used for chemometric analysis of spectral data of these drugs. The compositions of the mixtures used in the calibration set were varied to cover the linearity ranges 0.7-10 μg ml(-1) for AT, 1-15 μg ml(-1) for ST, 1-15 μg ml(-1) for MT, 0.3-5 μg ml(-1) for BS, 0.1-3 μg ml(-1) for PR, 0.1-3 μg ml(-1) for CV and 0.7-5 μg ml(-1) for NB. The analytical performances of these chemometric methods were characterized by relative prediction errors and were compared with each other. GA-PLS showed superiority over the other applied multivariate methods due to the wavelength selection. A new gradient HPLC method had been developed using statistical experimental design. Optimum conditions of separation were determined with the aid of central composite design. The developed HPLC method was found to be linear in the range of 0.2-20 μg ml(-1) for AT, 0.2-20 μg ml(-1) for ST, 0.1-15 μg ml(-1) for MT, 0.1-15 μg ml(-1) for BS, 0.1-13 μg ml(-1) for PR, 0.1-13 μg ml(-1) for CV and 0.4-20 μg ml(-1) for NB. No significant difference between the results of the proposed GA-PLS and HPLC methods with respect to accuracy and precision. The proposed analytical methods did not show any interference of the excipients when applied to pharmaceutical products.
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Affiliation(s)
- Eman A Abdel Hameed
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Randa A Abdel Salam
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Ghada M Hadad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt.
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Elkhoudary MM, Abdel Salam RA, Hadad GM. Comparative artificial neural network and partial least squares models for analysis of Metronidazole, Diloxanide, Spiramycin and Cliquinol in pharmaceutical preparations. Spectrochim Acta A Mol Biomol Spectrosc 2014; 130:222-229. [PMID: 24792195 DOI: 10.1016/j.saa.2014.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 03/24/2014] [Accepted: 04/04/2014] [Indexed: 06/03/2023]
Abstract
Metronidazole (MNZ) is a widely used antibacterial and amoebicide drug. Therefore, it is important to develop a rapid and specific analytical method for the determination of MNZ in mixture with Spiramycin (SPY), Diloxanide (DIX) and Cliquinol (CLQ) in pharmaceutical preparations. This work describes simple, sensitive and reliable six multivariate calibration methods, namely linear and nonlinear artificial neural networks preceded by genetic algorithm (GA-ANN) and principle component analysis (PCA-ANN) as well as partial least squares (PLS) either alone or preceded by genetic algorithm (GA-PLS) for UV spectrophotometric determination of MNZ, SPY, DIX and CLQ in pharmaceutical preparations with no interference of pharmaceutical additives. The results manifest the problem of nonlinearity and how models like ANN can handle it. Analytical performance of these methods was statistically validated with respect to linearity, accuracy, precision and specificity. The developed methods indicate the ability of the previously mentioned multivariate calibration models to handle and solve UV spectra of the four components' mixtures using easy and widely used UV spectrophotometer.
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Affiliation(s)
- Mahmoud M Elkhoudary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sinai University, El Arish, North Sinai, Egypt
| | - Randa A Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.
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Badr JM, Hadad GM, Nahriry K, Hassanean HA. Validated HPLC method for simultaneous estimation of khellol glucoside, khellin and visnagin inAmmi visnagaL. fruits and pharmaceutical preparations. Nat Prod Res 2014; 29:593-601. [DOI: 10.1080/14786419.2014.945170] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mokhtar HI, Abdel-Salam RA, Hadad GM. Three-Dimensional Desirability Spaces for Quality-by-Design-Based HPLC Development. J Chromatogr Sci 2014; 53:467-77. [DOI: 10.1093/chromsci/bmu067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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46
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Soliman RM, Hadad GM, Abdel Salam RA, Mesbah MK. QUANTITATIVE DETERMINATION OF GLUTATHIONE IN PRESENCE OF ITS DEGRADANT IN A PHARMACEUTICAL PREPARATION USING HPLC-DAD AND IDENTIFICATION BY LC-ESI-MS. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.749497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Rabab M. Soliman
- a Department of Pharmaceutical Chemistry , Faculty of Pharmacy, Umm Al-Qura University , Makkah , Saudi Arabia
- b Department of Pharmaceutical Chemistry , Faculty of Pharmacy, Sinai University , El Arish , North Sinai , Egypt
| | - Ghada M. Hadad
- c Department of Pharmaceutical Analytical Chemistry , Faculty of Pharmacy, Suez Canal University , Ismailia , Egypt
| | - Randa A. Abdel Salam
- c Department of Pharmaceutical Analytical Chemistry , Faculty of Pharmacy, Suez Canal University , Ismailia , Egypt
| | - Mostafa K. Mesbah
- d Department of Pharmacognosy , Faculty of Pharmacy, Suez Canal University , Ismailia , Egypt
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47
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Hadad GM, Abdel Salam RA, Abdel Hameed EA. QUANTITATIVE DETERMINATION OF LEVETIRACETAM IN HUMAN URINE USING HPLC-UV AND ITS IDENTIFICATION BY LC-ESI-MS. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.723091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ghada M. Hadad
- a Pharmaceutical Analytical Chemistry Department , Suez Canal University , Ismailia , Egypt
| | - Randa A. Abdel Salam
- a Pharmaceutical Analytical Chemistry Department , Suez Canal University , Ismailia , Egypt
| | - Eman A. Abdel Hameed
- a Pharmaceutical Analytical Chemistry Department , Suez Canal University , Ismailia , Egypt
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48
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Hadad GM, Abdel Salam RA, Soliman RM, Mesbah MK. HPLC-DAD determination of seven antioxidants and caffeine in different phytopharmaceuticals. J Chromatogr Sci 2013; 52:617-23. [PMID: 23811048 DOI: 10.1093/chromsci/bmt086] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A high-performance liquid chromatography method employing diode array detection was developed to determine levels of the major catechins, proanthocyanidin (procyanidin B2), caffeine, thymoquinone and carvacrol and its isomer, thymol, which are present in different natural complex matrices found in commercial products of Camellia sinensis L. and/or Nigella sativa L. Reversed-phase separation was performed on a C18 column by using gradient elution by varying the proportions of solvent A (distilled water containing 0.05% orthophosphoric acid) and solvent B (acetonitrile), with a flow rate of 1.5 mL/min and duration of 31 min. Excellent linearity was observed for all standard calibration curves, and correlation coefficients were above 0.9996. The developed method is efficient, with high reproducibility and sensitivity, and is ideally suited for rapid and routine analysis of principal components in these promising medicinal plants.
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Affiliation(s)
- Ghada M Hadad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Randa A Abdel Salam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Rabab M Soliman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sinai University, El Arish, North Sinai, Egypt Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia
| | - Mostafa K Mesbah
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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49
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Abdel Salam RA, Hadad GM, Abdel Hameed EA. SIMULTANEOUS DETERMINATION OF TWO MULTICOMPONENT MIXTURES CONTAINING PHENOBARBITONE AND EPHEDRINE HYDROCHLORIDE USING HPLC AND CHEMOMETRIC ASSISTED SPECTROPHOTOMETRIC METHODS. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.657735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Randa A. Abdel Salam
- a Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy , Suez Canal University , Ismailia , Egypt
| | - Ghada M. Hadad
- a Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy , Suez Canal University , Ismailia , Egypt
| | - Eman A. Abdel Hameed
- a Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy , Suez Canal University , Ismailia , Egypt
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50
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Hadad GM, Salam RAA, Soliman RM, Mesbah MK. High-performance liquid chromatography quantification of principal antioxidants in black seed (Nigella sativa L.) phytopharmaceuticals. J AOAC Int 2012; 95:1043-7. [PMID: 22970569 DOI: 10.5740/jaoacint.11-207] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A new, simple, sensitive, rapid, and accurate isocratic RP-HPLC method was developed and validated for simultaneous analysis of the principal antioxidants of Nigella sativa, i.e., thymoquinone (TQ), carvacrol (CR), and its isomer thymol (THY), in different phytopharmaceuticals. The mobile phase was water-methanol (40 + 60, v/v) at a flow rate of 1.5 mL/min. Quantification was achieved with UV detection at 254 nm, based on peak area. The method was validated for linearity, accuracy, precision, selectivity, and robustness. The proposed method is stability-indicating for determination of TQ in the presence of its degradants. The LOD and LOQ (microg/mL) were, respectively, 0.006 and 0.021 for TQ, 0.002 and 0.006 for CR, and 0.027 and 0.090 for THY. The mean recoveries measured at three concentrations were higher than 99%, with RSD <2%. This analytical method is suitable for quality control of the marker substances in this widely used natural protective and curative remedy.
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Affiliation(s)
- Ghada M Hadad
- Suez Canal University, Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Ismailia, Egypt
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