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Batakoushy HA, Hafez HM, Soliman MM, Mohamed TF, Ahmed AB, El Hamd MA. Isoquinoline-based intrinsic fluorescence assessment of erythropoiesis-stimulating agent, Roxadustat (FG-4592), in tablets: applications to content uniformity and human plasma evaluation. LUMINESCENCE 2024; 39:e4741. [PMID: 38605268 DOI: 10.1002/bio.4741] [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: 01/29/2024] [Revised: 03/09/2024] [Accepted: 03/15/2024] [Indexed: 04/13/2024]
Abstract
In the present study, a first validated and green spectrofluorimetric approach for its assessment and evaluation in different matrices was investigated. After using an excitation wavelength of 345 nm, Roxadustat (ROX) demonstrates a highly native fluorescence at an emission of 410 nm. The influences of experimental factors such as pH, diluting solvents, and different organized media were tested, and the most appropriate solvent choice was ethanol. It was confirmed that there was a linear relationship between the concentration of ROX and the relative fluorescence intensity in the range 60.0-1000.0 ng ml-1, with the limit of detection and limit of quantitation, respectively, being 17.0 and 53.0 ng ml-1. The mean recoveries % [±standard deviation (SD), n = 5] for pharmaceutical preparations were 100.11% ± 2.24%, whereas for plasma samples, they were 100.08 ± 1.08% (±SD, n = 5). The results obtained after the application of four greenness criteria, Analytical Eco-Scale metric, NEMI, GAPI, and AGREE metric, confirmed its eco-friendliness. In addition, the whiteness meter (RGB12) confirmed its level of sustainability. The International Council for Harmonisation (ICH) criteria were used to verify the developed method through the study in both spiked plasma samples and content uniformity evaluation. An appropriate standard for various applications in industry and quality control laboratories was developed.
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Affiliation(s)
- Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin El Kom, Egypt
| | - Hani M Hafez
- Department of Pharmaceutical Chemistry, College of Pharmacy, Al-Esraa University, Baghdad, Iraq
| | - Marwa M Soliman
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Tahany F Mohamed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Amal B Ahmed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Nahda University, Beni Suef, Egypt
| | - Mohamed A El Hamd
- Department of Pharmaceutical Chemistry, College of Pharmacy, Shaqra University, Shaqra, Saudi Arabia
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, South Valley University, Qena, Egypt
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2
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Salman BI, Batakoushy HA, Saraya RE, Abdel-Aal MAA, Ibrahim AE, Hassan YF, Hassan AI, El-Shoura EAM. A new green fluorimetric micelle complexation approach for reduction of the consumed solvent and quantification of avapritinib in biological fluids. RSC Adv 2024; 14:10445-10451. [PMID: 38567336 PMCID: PMC10985462 DOI: 10.1039/d4ra01198h] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024] Open
Abstract
Avapritinib (AVA) is the first medication authorized by the US-FDA in 2020 for the management of gastrointestinal stromal tumours (GISTs) that can't be treated by surgery. Cancer is among the most common causes of death worldwide and is the second most common cause of death after cardiovascular disease. Therefore, a quick, easy, sensitive, and straightforward fluorimetric approach was used to analyse AVA in pharmaceutical materials and blood plasma (pharmacokinetic). The suggested technique relies on 2% sodium dodecyl sulphate (SDS, pH 4) micellar system augmentation of the fluorescence of the tested drug. The technique demonstrated high relative fluorescence intensity (RFI) at 430 nm after excitation at 340 nm. Concentrations ranging from 20.0-400.0 ng mL-1 with a limit of quantitation of 9.47 ng mL-1 were used to obtain luminescence data for the studied medicine. In addition, the quantum yield of the AVA fluorescence was increased with the gradual addition of a surfactant at a concentration above its critical micellar level. This knowledge has been exploited to enhance the effectiveness of a spectrofluorometric technique for the estimation of AVA in human plasma (98.95 ± 1.22%) and uniformity tests with greenness assessments. The conditions for enhanced fluorescence were optimized and fully validated using US-FDA and International Conference on Harmonization (ICH) rules. This innovative strategy was expanded for AVA stability research in human plasma across various circumstances. This approach is an eco-friendly solution compared to traditional testing methods that use hazardous chemicals.
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Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University Assiut Branch Assiut 71524 Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University Shebin Elkom 32511 Egypt
| | - Roshdy E Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University Port Said 42511 Egypt
| | - Mohamed A A Abdel-Aal
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University Assiut Branch Assiut 71524 Egypt
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa P.O. Box 33, Birkat Al Mauz Nizwa 616 Oman
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University Assiut Branch Assiut 71524 Egypt
| | - Ahmed I Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University Assiut Branch Assiut 71524 Egypt
| | - Ehab A M El-Shoura
- Department of Clinical Pharmacy, Faculty of Pharmacy, Al-Azhar University Assiut Branch Assiut 71524 Egypt
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Salman BI, Hassan AI, Batakoushy HA, Saraya RE, Abdel-Aal MAA, Al-Harrasi A, Ibrahim AE, Hassan YF. Design, Characterization, and Bioanalytical Applications of Green Terbium- and Nitrogen-Doped Carbon Quantum Dots as a Fluorescent Nanoprobe for Omadacycline Analysis. Appl Spectrosc 2024; 78:329-339. [PMID: 38166449 DOI: 10.1177/00037028231219508] [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] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Terbium- and nitrogen-doped carbon quantum dots (Tb,N@CQDs) were greenly created employing microwave synthesis from plum juice with terbium nitrate. The synthesis of Tb,N@CQDs was fast (7 min) with a high quantum yield (35.44%). Tb,N@CQDs were fully characterized using transmission electron microscopy, Zeta potential analysis, fluorescence, and ultraviolet spectroscopy. Omadacycline (OMC) is a broad-spectrum tetracycline that has been recently approved by the United States Food and Drug Act (FDA) in October 2018. OMC is the first oral aminomethylcycline class antibiotic drug that was authorized for the treatment of acute skin structure infections and community-acquired pneumonia. Tb,N@CQDs exhibited emission at 440 nm after excitation at 360 nm, where their fluorescence intensity showed a reduction upon addition of OMC. The experimental parameters were further studied and optimized. The linear range was between 40 and 60 parts per billion (ppb), with (limit of quantitation) equal to 34.78 ppb. The proposed approach was validated for bioanalytical purposes using FDA guidelines and proved to be straightforward, cheap, highly sensitive, and very selective, which can be used in clinical studies. The developed approach proved to be green using some current assessment metrics and was applied successfully for the determination of OMC in human plasma, milk, and pharmaceutical formulations as well as pharmacokinetic study.
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Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Ahmed I Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University, Shebin Elkom, Egypt
| | - Roshdy E Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said, Egypt
| | - Mohamed A A Abdel-Aal
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
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Salman BI, Hassan AI, Saraya RE, Ibrahim AE, Mohammed BS, Batakoushy HA, El Deeb S, Hassan YF. Development of cysteine-doped MnO 2 quantum dots for spectrofluorimetric estimation of copper: applications in different matrices. Anal Bioanal Chem 2023; 415:5529-5538. [PMID: 37432444 PMCID: PMC10444647 DOI: 10.1007/s00216-023-04827-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/01/2023] [Accepted: 06/19/2023] [Indexed: 07/12/2023]
Abstract
Copper (Cu) plays a role in maintaining healthy nerve cells and the immune system. Osteoporosis is a high-risk factor for Cu deficiency. In the proposed research, unique green, fluorescent cysteine-doped MnO2 quantum dots (Cys@MnO2 QDs) were synthesized and assessed for the determination of Cu in different food and hair samples. The developed quantum dots were synthesized with the help of cysteine using a straightforward ultrasonic approach to create 3D fluorescent Cys@MnO2 QDs. The resulting QDs' morphological and optical characteristics were carefully characterized. By adding Cu ions, the intensity of fluorescence for the produced Cys@MnO2 QDs was found to be dramatically reduced. Additionally, the applicability of Cys@MnO2 QDs as a new luminous nanoprobe was found to be strengthened by the quenching effect grounded on the Cu-S bonding. The concentrations of Cu2+ ions were estimated within the range of 0.06 to 7.00 µg mL-1, with limit of quantitation equal to 33.33 ng mL-1 and detection limit equal to 10.97 ng mL-1. The Cys@MnO2 QD technique was applied successfully for the quantification of Cu in a variety of foods, including chicken meat, turkey, and tinned fish, as well as in human hair samples. The chance that this novel technique could be a useful tool for figuring out the amount of cysteine in bio-samples is increased by the sensing system's remarkable advantages, which include being rapid, simple, and economical.
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Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed I Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Roshdy E Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman
| | - Bassam Shaaban Mohammed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin-Elkom, 32511, Egypt
| | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin-Elkom, 32511, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman.
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106, Braunschweig, Germany.
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
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Saraya RE, Salman BI, Hassan YF, Hassan AI, Refaat SA, Batakoushy HA. Applicability of fluorescamine as a fluorogenic reagent for highly sensitive fluorimetric analysis of the tyrosine kinase inhibitor (avapritinib) in pharmaceuticals and biological samples. LUMINESCENCE 2023; 38:1632-1638. [PMID: 37417422 DOI: 10.1002/bio.4550] [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: 03/01/2023] [Revised: 06/08/2023] [Accepted: 07/02/2023] [Indexed: 07/08/2023]
Abstract
Avapritinib (AVP) was the first precision drug to be approved by the US Food and Drug Administration (FDA) in 2020 for patients suffering from metastatic gastrointestinal stromal tumors (GISTs) and progressive systemic mastocytosis. The analysis of AVP in pharmaceutical tablets and human plasma was then carried out using a fast, efficient, sensitive, and simple fluorimetric method using a fluorescamine reagent. The procedure is based on the interaction between fluorescamine as a fluorogenic reagent and the primary aliphatic amine moiety in AVP using borate buffer solution at pH 8.8. The produced fluorescence was measured at 465 nm (Excitation at 395 nm). The calibration graph's linearity range was discovered to be 45.00-500.0 ng mL-1 . Utilizing the International Council for Harmonization (ICH) and US-FDA recommendations, the research technique was validated and bioanalytically validated. The proposed approach was effectively employed for determining the stated pharmaceuticals in plasma with a high percentage of recovery ranging from 96.87 to 98.09 and pharmaceutical formulations with a percentage of recovery equal to 102.11% ± 1.05%. In addition, the study was extended to a pharmacokinetic study of AVP with 20 human volunteers as a step for AVP management in therapeutic cancer centers.
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Affiliation(s)
- Roshdy E Saraya
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Ahmed I Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Shymaa Abdelsattar Refaat
- Clinical Biochemistry and Molecular Diagnostics Department, National Liver Institute, Menoufia University, Shibin Elkom, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University, Shebin Elkom, Egypt
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Alqahtani YS, Mahmoud AM, Mahnashi MH, Ali R, Shahin RY, El-Wekil MM, Batakoushy HA. Facile fabrication of boron and nitrogen co-doped carbon dots for "ON-OFF-ON" fluorescence sensing of Al 3+ and F - ions in water samples. RSC Adv 2023; 13:23736-23744. [PMID: 37555090 PMCID: PMC10405784 DOI: 10.1039/d3ra02919k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/17/2023] [Indexed: 08/10/2023] Open
Abstract
Water contamination with harmful ions has grown to be a significant environmental issue on a global scale. Therefore, the fabrication of simple, cost-effective, and reliable sensors is essential for identifying these ions. Herein, co-doping of carbon dots with new caffeine and H3BO3-derived boron (B) and nitrogen (N) was performed (BN@CDs). The as-prepared BN@CDs probe was used for the tandem fluorescence sensing of Al3+ and F- based on "ON-OFF-ON" switches. The BN@CDs nanoswitch has a high quantum yield of 44.8% with λexc. and λem. of 360 nm and 440 nm, respectively. The probe exhibited good stability with different pH, ionic-strengths, and irradiation times. The fluorescence emission of BN@CDs was decreased as the Al3+ concentration was increased with a linear range of 0.03-90 μM and a limit of detection (S/N = 3) equal to 9.0 nM. Addition of F- restored the BN@CDs emission as F- ions form a strong and stable complex with Al3+ ions [Al(OH)3F]-. Therefore, the ratio response (F/F°) was raised by raising the F- ion concentration to the range of 0.18-80 μM with a detection limit (S/N = 3) of 50.0 nM. The BN@CDs sensor exhibits some advantages over other reported methods in terms of simplicity, high quantum yield, and low detection limit. Importantly, the sensor was successfully applied to determine Al3+ and F- in various ecological water specimens with accepted results.
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Affiliation(s)
- Yahya S Alqahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University Najran Saudi Arabia
| | - Ashraf M Mahmoud
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University Najran Saudi Arabia
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University Najran Saudi Arabia
| | - Ramadan Ali
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk Tabuk 71491 Saudi Arabia
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al Azhar University Assiut Branch 71526 Egypt
| | - Reem Y Shahin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sphinx University New Assiut City Assiut Egypt
| | - Mohamed M El-Wekil
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University Assiut 71526 Egypt
| | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University Shebin Elkom 32511 Egypt
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El Hamd MA, El-Maghrabey M, Magdy G, Mahdi WA, Alshehri S, Bass AKA, Batakoushy HA. Application of quality-by-design for adopting an environmentally green fluorogenic determination of benoxinate hydrochloride in eye drops and artificial aqueous humour. Sci Rep 2023; 13:8559. [PMID: 37237000 DOI: 10.1038/s41598-023-35347-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Herein, a sensitive and selective spectrofluorimetric method has been developed for the determination of the ocular local anesthetic benoxinate hydrochloride (BEN-HCl) in eye drops and artificial aqueous humour. The proposed method is based on the interaction of fluorescamine with the primary amino group of BEN-HCl at room temperature. Following the excitation of the reaction product at 393 nm, the emitted relative fluorescence intensity (RFI) was measured at 483 nm. The key experimental parameters were carefully examined and optimized by adopting an analytical quality-by-design approach. The method used a two-level full factorial design (24 FFD) to obtain the optimum RFI of the reaction product. The calibration curve was linear at the range of 0.10-1.0 μg/mL of BEN-HCl with sensitivity down to 0.015 μg/mL. The method was applied for analyzing the BEN-HCl eye drops and could also assess its spiked levels in artificial aqueous humour with high % recoveries (98.74-101.37%) and low SD values (≤ 1.11). To investigate the green profile of the proposed method, a greenness assessment was performed with the aid of the Analytical Eco-Scale Assessment (ESA) and GAPI. The developed method obtained a very high ESA rating score in addition to being sensitive, affordable, and environmentally sustainable. The proposed method was validated according to ICH guidelines.
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Affiliation(s)
- Mohamed A El Hamd
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra, 11961, Saudi Arabia.
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, South Valley University, Qena, 83523, Egypt.
| | - Mahmoud El-Maghrabey
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - Galal Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, 33511, Egypt.
| | - Wael A Mahdi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Amr K A Bass
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Menoufia University, Shebin Elkom, 32511, Egypt
| | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shebin Elkom, 32511, Egypt.
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Kelani KM, Emara MS, Madkour AW, Batakoushy HA, Tony RM. The simultaneous measurement of quaternary mixture in over-the-counter cold medications using sequential spectrophotometric resolution approach enhanced with in-lab sample enrichment. BMC Chem 2023; 17:24. [PMID: 36949535 PMCID: PMC10031888 DOI: 10.1186/s13065-023-00931-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/27/2023] [Indexed: 03/24/2023] Open
Abstract
A sequential spectrophotometric resolution technique (SSRT) was developed in this study without the use of systematic separation procedures to determine drug of a quaternary combination; caffeine (CAF), pseudoephedrine (PSE), doxylamine succinate (DOX), and paracetamol (PAR). Their presence in a tablet with a gap ratio of 3:3:1:150, respectively, and their overlapping spectra with low absorptivities make their resolution and determination impossible without prior separation. successive ratio subtraction technique (SRST) and constant multiplication method were used to solve these problems. Furthermore, an in-lab sample enrichment technique was applied to increase minor components concentration and consequently their absorbanses (CAF, PSE, and DOX). The D0 absorption spectra were generated by successive ratios followed by subtraction and multiplication of the constants. The maximum absorbances of the drugs tested, namely (CAF, PSE, DOX and PAR) were measured at wavelengths of 272.0, 257.0, 260.0, and 248.0 nm, respectively. The limits of detection (LOD) and limits of quantification (LOQ) were 0.021, 0.124, 0.186, 0.137 and 0.070, 0.414, 0.621, 0.456 (µg/mL), respectively. The linearitiy ranges (µg/mL) were 1.0-22.0, 1.0-24.0, 10.0-90.0 and 1.0-15.0 for CAF, PSE, DOX, and PAR, respectively. The International Conference on Harmonization (ICH) guidelines were applied for method validation, and the results obtained were within the limited parameters. The finding results were compared to official and/or published analytical methods to determine the procedure's reliability. It was noted that there was no actual difference in accuracy and precision between both meyhods. The proposed technique is sensitive, selective and economic;so it can be applied to the simultaneous analysis of these drugs in their commercial tablets and/or in quality-control laboratories.
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Affiliation(s)
- Khadiga M Kelani
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr El-Aini Street, PO 11562, Cairo, Egypt.
| | - Mohamed S Emara
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, 11751, Egypt
| | - Ahmed W Madkour
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, 11751, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University, Shebin Elkom, 32511, Egypt.
| | - Rehab M Tony
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
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Ahmed AB, Batakoushy HA, Abdallah FF. New Chromatographic Techniques for Sensitive Mebendazole Quantification in the Presence of Degraded Product, Commercial Tablets Application, and Greenness Assessment. J AOAC Int 2023:7070487. [PMID: 36882161 DOI: 10.1093/jaoacint/qsad030] [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: 10/19/2022] [Revised: 02/06/2023] [Accepted: 02/19/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND Before it spreads to other tissues, mebendazole, a highly effective broad-spectrum anthelmintic, is used to treat worm infestations caused by roundworms, hookworms, whipworms, threadworms (pinworms), and the gastrointestinal form of trichinosis. OBJECTIVE The development of new methods for sensitive quantification of mebendazole in the presence of degraded product is the main objective of the presented research. METHODS Validated chromatographic techniques with high sensitivity (HPTLC and UHPLC) are used. The HPTLC method was adopted on silica gel HPTLC F254 plates using ethanol, ethyl acetate, and formic acid (3: 8: 0.05, by volume) as a developing system. Furthermore, the UHPLC method is a green isocratic method with a mobile phase containing methanol and 0.1% sodium lauryl sulphate (20:80, v/v). RESULTS The suggested chromatographic methods are greener than the reported ones in terms of the used greenness assessment methods. To validate the developed methods; International Council on Harmonization (ICH/Q2) guidelines were followed. Successful application of the proposed methods was revealed by the simultaneous analysis of mebendazole (MEB) and its major degradation product, 2-amino-5-benzoylbenzimidazole (ABB). The linear ranges were 0.2-3.0, 0.1-2.0 µg/band for the HPTLC method, and 2.0-50, 1.0-40 µg/mL for the UHPLC method for MEB and ABB, respectively. CONCLUSION The suggested methods were used to analyze the studied drug in its commercial tablets. Both pharmacokinetic studies and quality control laboratories can make use of the suggested techniques. HIGHLIGHTS Green and accurate HPTLC and UHPLC methods for the determination of Mebendazole and its major degradation products.
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Affiliation(s)
- Amal B Ahmed
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Nahda University, 62514 Beni-Suef, Egypt
| | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shebin Elkom, 32511 Egypt
| | - Fatma F Abdallah
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Alshaheed Shehata Ahmad Hegazy St, Beni-Suef, 62514 Egypt
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10
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Salman BI, Hassan YF, Ali MFB, Batakoushy HA. Ultrasensitive green spectrofluorimetric approach for quantification of Hg(II) in environmental samples (water and fish samples) using cysteine@MnO 2 dots. LUMINESCENCE 2023; 38:145-151. [PMID: 36579943 DOI: 10.1002/bio.4431] [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: 10/27/2022] [Revised: 12/08/2022] [Accepted: 12/27/2022] [Indexed: 12/30/2022]
Abstract
Mercury (Hg2+ ) is a natural element present in foods such as fish, water and soil. Exposure to mercury leads to severe toxic effects on the nervous, digestive, and immune systems. Here, a novel, green, and environmentally friendly fluorescent probe decorated with cysteine/MnO2 quantum dots (Cys@MnO2 QDs) was synthesized. This synthesis was carried out using a simple ultrasound technique with the aid of cysteine for fabricating Cys@MnO2 QDs to estimate Hg levels in fish and water samples. In this morphological study, Cys@MnO2 QDs were fully characterized using high-resolution transmission electron microscopy, zeta potential analysis, fluorescence, ultraviolet-visible and infrared spectroscopy. The fluorescence of the synthesized Cys@MnO2 QDs was significantly quenched by gradually increasing the Hg(II) concentration. The quenching mechanism based on the Hg-S bonds strengthened the utility of the Cys@MnO2 QDs as a novel luminescent nanoprobe. The estimation of Hg was linear in the concentration range 0.7-100.0 ng mL-1 with a limit of quantitation equal to 0.30 ng mL-1 . The Cys@MnO2 QDs are fluorescent probes with various benefits such as speed, ease of use, cost- effective, and being environmentally friendly; they are easily applied in food manufacturing and for public health improvement.
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Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut, Egypt
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut, Egypt
| | - Marwa F B Ali
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University, Shebin Elkom, Egypt
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11
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Salman BI, Hassan AI, Hassan YF, Saraya RE, Batakoushy HA. Rapid One-Pot Microwave Assisted Green Synthesis Nitrogen Doped Carbon Quantum Dots as Fluorescent Precursor for Estimation of Modafinil as Post-Covid Neurological Drug in Human Plasma with Greenness Assessments. J Fluoresc 2022; 33:1101-1110. [PMID: 36576682 PMCID: PMC9795147 DOI: 10.1007/s10895-022-03128-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 12/12/2022] [Indexed: 12/29/2022]
Abstract
The neuro-stimulant anti-narcoleptic drug as modafinil (MOD) is used to treatment neurological conditions caused by COVID-19. MOD was used to treatment narcolepsy, shift-work sleep disorder, and obstructive sleep apnea-related sleepiness. So, an innovative, quick, economical, selective, and ecologically friendly procedure was carried out. A highly sensitive N@CQDs technique was created from green Eruca sativa leaves in about 4 min using microwave synthesis at 700 w. The quantum yield of the synthesized N@CQDs was found to be 41.39%. By increasing the concentration of MOD, the quantum dots' fluorescence intensity was gradually quenched. After being excited at 445 nm, the fluorescence reading was recorded at 515 nm. The linear range was found to be in the range 50 - 700 ng mL-1 with lower limit of quantitation (LOQ) equal to 45.00 ng mL-1. The current method was fully validated and bio analytically according to (US-FDA and ICH) guidelines. Full characterization of the N@CQDs has been conducted by high resolution transmission electron microscope (HRTEM), Zeta potential measurement, fluorescence, UV-VIS, and FTIR spectroscopy. Various experimental variables including pH, QDs concentration and the reaction time were optimized. The proposed study is simply implemented for the therapeutic drug monitoring system (TDMS) and various clinical laboratories for further pharmacokinetic research.
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Affiliation(s)
- Baher I. Salman
- grid.411303.40000 0001 2155 6022Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524 Egypt
| | - Ahmed I. Hassan
- grid.411303.40000 0001 2155 6022Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524 Egypt
| | - Yasser F. Hassan
- grid.411303.40000 0001 2155 6022Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524 Egypt
| | - Roshdy E. Saraya
- grid.440879.60000 0004 0578 4430Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511 Egypt
| | - Hany A. Batakoushy
- grid.411775.10000 0004 0621 4712Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Menoufia University, Shebin Elkom, 32511 Egypt
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12
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Mostafa EA, Elkady EF, El-Didamoony MA, Batakoushy HA. A Turn-On–Type Fluorescence Resonance Energy Transfer Eco-friendly Method for Nitazoxanide Quantification in Pharmaceutical Dosage Form and Spiked Plasma: Evaluation of Greenness Profile Using Different Assessment Tools. J Fluoresc 2022; 33:973-985. [PMID: 36542223 PMCID: PMC10140099 DOI: 10.1007/s10895-022-03072-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/03/2022] [Indexed: 12/24/2022]
Abstract
AbstractA brand-new class of anti-infective drugs that work against bacteria, viruses, and protozoan parasites is nitazoxanide and related thiazolides. Thiazolides have also been shown to cause cell cycle arrest and apoptotic cell death in cancer cells in recent years. In this study, an eco-friendly, spectrofluorimetric technique that is verified, easy, and sensitive has been proposed for quantifying nitazoxanide (NTZ), a broad-spectrum antiparasitic drug. When NTZ is reduced with zinc (Zn) powder in an acidic media, a highly fluorescent product is produced. To get the highest sensitivity, different experimental conditions impacting the response were examined and optimized. Following excitation at 299 nm, scanning of the fluorescent product was done at 440 nm. The intensity of the fluorescence was proportional to the drug concentration in the range of 0.1–0.6 μg/mL. The approach was validated according to International Conference on Harmonization (ICH) guidelines, and the outcome was satisfactory. The detection and quantitation limits were calculated to be 0.013 and 0.038 μg/mL, respectively. The suggested technique was successful in analyzing commercially available NTZ dosage forms. Furthermore, the proposed technique was used to assess NTZ levels in human plasma and it was bio-analytically validated according to European Medicines Agency (EMA) guidelines. The suggested method can be used in quality control laboratories as well as in pharmacokinetic studies. In order to picture the green profile of the developed method, four greenness assessment tools have been applied. National Environmental Methods Index (NEMI), analytical Eco-Scale Assessment (ESA), Green Analytical Procedure Index (GAPI) and Analytical Greenness metric (AGREE) are the relatively most widely used metrics. So, they were utilized to perform a detailed greenness comparison between the proposed method and some of the reported methods for the determination of NTZ. The developed method was found to be an excellent green method with the highest AGREE score.
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Affiliation(s)
- Eman A Mostafa
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St, Cairo, 11562, Egypt.
| | - Ehab F Elkady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St, Cairo, 11562, Egypt
| | | | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shebin Elkom, 32511, Egypt
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13
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Hassan AME, El Hamd MA, El-Maghrabey MH, Mahdi WA, Alshehri S, Batakoushy HA. Two Versatile Pencil Graphite-Polymer Sensor Electrodes Coupled with Potentiometry and Potentiometric Titration Methods: Profiling Determinations of Vitamin V in Tablets and Urine Samples. Sensors (Basel) 2022; 22:9128. [PMID: 36501827 PMCID: PMC9739328 DOI: 10.3390/s22239128] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Herein, we developed a new pencil graphite ion-selective electrode strategy for the broadly used erectile dysfunction medication, sildenafil citrate (SC, vitamin V), for its automated potentiometry and potentiometric titration profiling in marketed tablets and human urine samples. The method was based on ion-pair complexation between SC and sodium tetraphenylborate (Na-TPB) or phosphotungstic acid (PTA), embedded into a pencil-fabricated graphite sensor electrode coated with poly(vinyl chloride, PVC) matrix, which is pre-plasticized with two different pre-studied plasticizers. The modern fabricated electrodes have a proven fast near-Nernstian response for SC over the concentration range of 1.0 × 10-6 to 1.0 × 10-2 and 1.0 × 10-5 to 1.0 × 10-2 M, with LODs of 6.5 × 10-7 and 5.5 × 10-6 over a pH 3-6 for (SC-TPB)- and (SC-PTA)-based membrane sensors, of O-nitrophenyl octyl ether (O-NPOE) and dioctyl phthalate (DOP), respectively. The selectivity coefficients for different interferents, including many inorganic cations, sugars, and/or nitrogenous compounds, were tested and confirmed. Applications of the proposed method were conducted on the determination of SC in its tablets and urine samples under the proper conditions. The percent recovery values were compared with those obtained by an official method and showed an RSD ≤ 0.3% (n = 5).
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Affiliation(s)
- Abeer M. E. Hassan
- Department of Chemistry, Faculty of Pharmacy, 6 October University, 6th of October City 12585, Egypt
| | - Mohamed A. El Hamd
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra 11961, Saudi Arabia
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, South Valley University, Qena 83523, Egypt
| | - Mahmoud H. El-Maghrabey
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Wael A. Mahdi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hany A. Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shebin Elkom 32511, Egypt
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14
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Alharthi S, Batakoushy HA, Alharthy SA, Abd El-Magied MO, Salem WM. Electro-analytical sensing of anti-hypotensive agents: application to dosage forms and human urine. Toxicol Res (Camb) 2022; 11:245-254. [PMID: 35237429 PMCID: PMC8882789 DOI: 10.1093/toxres/tfac004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 10/25/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 11/12/2022] Open
Abstract
A new and valid method was developed for the quantitative voltammetric analysis of midodrine hydrochloride (MID) in pharmaceutical tablets (Midodrine) and biological samples. The method is based on electro-oxidation of MID supported by both disposable pencil electrode (PE) and glassy carbon electrode (GCE). The analysis was carried out using cyclic voltammetry, differential pulse voltammetry (DPV), and square wave voltammetry (SWV) techniques. The proposed analytical method was validated according to ICH guidelines. MID was successively assayed at concentration ranges of 1.15-6.55 and 0.58-3.05 μg mL-1 at PE. Also, MID was successively assayed at concentration ranges of 1.15-5.28 and 2.86-27.6 μg mL-1 at GCE for DPV and SWV methods, respectively. The proposed method was successfully used for the analysis of MID in its dosage form and human urine with good recoveries of 99.66 ± 0.33, 99.8 ± 0.45 at PE and 99.8 ± 0.25, 98.7 ± 1.27 at GCE for the DPV and SWV methods, respectively. The suggested method could be applied to the studied drug in the quality control lab as well as in its pharmacokinetic studies.
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Affiliation(s)
- Sarah Alharthi
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Hany A Batakoushy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shebin El-Kom, Menoufia 32511, Egypt
| | - Saif A Alharthy
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
| | - Mahmoud O Abd El-Magied
- Research Sector, Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo 11936, Egypt,Corresponding author: (MOA)
| | - Waheed M Salem
- Medical Laboratories Department, Faculty of Applied Health Sciences Technology, Menoufia University, Shebin El-Kom, Menoufia 32511, Egypt
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15
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Abdel Hamid MA, Mabrouk MM, Ahmed HM, Samy B, Batakoushy HA. Carbon quantum dots as a sensitive fluorescent probe for quantitation of pregabalin; application to real samples and content uniformity test. LUMINESCENCE 2021; 37:170-176. [PMID: 34747089 DOI: 10.1002/bio.4158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/04/2021] [Revised: 10/28/2021] [Accepted: 10/28/2021] [Indexed: 11/10/2022]
Abstract
A novel optical nano-sensor for the detection of pregabalin (PG) in its pharmaceutical (Lyrica®) capsules and biological samples was reported. For the fabrication of highly fluorescent carbon quantum dots (CQDts), a simple green hydrothermal approach was described, and ascorbic acid (AA) was used as a carbon source. The obtained CQDts were confirmed by spectroscopic characterization such as transmission electron microscopy (TEM) and Fourier-transform infrared (FTIR) spectra. The synthesized CQDts were capped by alcohol to form yellow emitters, showing strong fluorescent emission at 524 nm, and excitation at 356 nm. The method is based on fluorescence quenching of CQDts in the presence of PG. The proposed analytical method was validated according to ICH guidelines. PG was successively assayed in the concentration range of 4.0 to 100 μg/ml). The detection and quantitation limits were 1.12 and 3.39 μg/ml, respectively. The proposed method could be used in both quality control and pharmacokinetic research for the studied drug.
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Affiliation(s)
- Mohamed A Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Egypt
| | - Mokhtar M Mabrouk
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Egypt
| | - Hytham M Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Bassant Samy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
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16
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Omar MA, Ahmed HM, Batakoushy HA, Abdel Hamid MA. Fluorescence spectroscopy for determination of dapagliflozin in pure form and its tablets formulation; Application to content uniformity testing. Spectrochim Acta A Mol Biomol Spectrosc 2020; 241:118642. [PMID: 32622048 DOI: 10.1016/j.saa.2020.118642] [Citation(s) in RCA: 4] [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: 04/20/2020] [Revised: 06/18/2020] [Accepted: 06/21/2020] [Indexed: 06/11/2023]
Abstract
A new, valid method was developed for quantitative spectrofluorimetric analysis of dapagliflozin (DGF) in its pure form and its commercially available tablets (Farxiga®). The proposed analytical method based on measurement of fluorescence intensity for DGF at 303 nm after excitation at 278 nm. Various experimental parameters influencing the fluorescence of DGF were examined to produce the optimal conditions. DGF was successively assayed in concentration range of (100-1000 ng mL-1) with lower detection limit (LOD) of 26.49 and quantitation limit (LOQ) was 79.48 ng mL-1. The suggested method was validated according to ICH guidelines for the estimation of DGF in its pure form and its new dosage form with percent recovery of 100.43 ± 1.15. The proposed method was adapted to examine DGF in content uniformity testing according to United States Pharmacopeia guidelines. This method can be used in routine analysis of DGF in quality control lab.
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Affiliation(s)
- Mahmoud A Omar
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Medinah, Saudi Arabia; Department of Analytical Chemistry, Faculty of Pharmacy, Minia University, Egypt
| | - Hytham M Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt.
| | - Hany A Batakoushy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt.
| | - Mohamed A Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Egypt
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17
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Omar MA, Ahmed HM, Batakoushy HA, Abdel Hamid MA. New spectrofluorimetric analysis of empagliflozin in its tablets and human plasma using two level full factorial design. Spectrochim Acta A Mol Biomol Spectrosc 2020; 235:118307. [PMID: 32247255 DOI: 10.1016/j.saa.2020.118307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 01/08/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
An efficient, accurate and sensitive spectrofluorimetric method was developed for analysis of empagliflozin (EGF) in pure form, dosage form and human plasma. The proposed procedure was based on formation of yellow fluorescent product between benzofurazan reagent and empagliflozin in slightly alkaline medium that is measured at 521 nm, when excitation at 455 nm. The present study was validated according to ICH guidelines and bioanalytical validated according to US-FDA guidance. The fluorescence intensity-concentration plot was linear over the range of 50-1000 ng ml-1 with limit of detection (LOD) and quantitation (LOQ) of 15.55 and 46.63 ng ml-1, respectively. The correlation (r) and determination (r2) coefficient was 0.9998 and 0.9997, respectively. Due to high sensitivity and selectivity of the proposed method, it is successfully used for analysis of empagliflozin in its dosage form and human plasma with good recoveries of 98.89% and 98.70%, respectively, without any interfering from matrix components. The corresponding regression equation, Y = 0.756X + 141.93, (r2 = 0.9994) for spiked plasma sample. Two level full factorial designs were used to study different experimental parameters that affect the reaction product and to get the optimum method conditions. The suggested method can be used in quality control lab as well as in pharmacokinetic studies of empagliflozin.
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Affiliation(s)
- Mahmoud A Omar
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Medinah, Saudi Arabia; Department of Analytical Chemistry, Faculty of Pharmacy, Minia University, Egypt
| | - Hytham M Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt.
| | - Hany A Batakoushy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Mohamed A Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Egypt
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18
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Omar MA, Abdel Hamid MA, Batakoushy HA, Ahmed HM. Second-derivative synchronous spectrofluorimetric assay of dapagliflozin: Application to stability study and pharmaceutical preparation. LUMINESCENCE 2019; 35:260-265. [PMID: 31733037 DOI: 10.1002/bio.3722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 06/22/2019] [Revised: 08/01/2019] [Accepted: 08/28/2019] [Indexed: 12/17/2022]
Abstract
A highly accurate, simple and sensitive spectrofluorimetric analytical method for dapagliflozin (DGF) quantitation was developed. The proposed method was successively applied to DGF analysis in both its pure and pharmaceutical dosage forms. This method was developed to investigate DGF stability in its degradation products, as laid out in International Council for Harmonisation (ICH) rules. Kinetics of alkaline degradation of DGF was also calculated. The half-life time (t1/2 ) of the reaction was 75.32 min. An alkaline degradation pathway was described. The present study involved measurement of the second-derivative synchronous fluorescence intensity of DGF at Δλ = 30 nm. Peak amplitude was measured at 322 nm. Linear range of the calibration curve was 0.1-1.0 μg ml-1 . Lower detection and quantitation limits were 0.023 and 0.071 μg ml-1 , respectively, and indicated good sensitivity of the proposed method. Mean per cent recovery was 99.78 ± 1.78%. The proposed analytical approach was successfully applied to DGF in the quality control laboratory and would be suitable as a stability-indicating assay.
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Affiliation(s)
- Mahmoud A Omar
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Medinah, Saudi Arabia.,Department of Analytical Chemistry, Faculty of Pharmacy, Minia University, Egypt
| | - Mohamed A Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Hytham M Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
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19
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Omar MA, Ahmed HM, Abdel Hamid MA, Batakoushy HA. New spectrofluorimetric analysis of dapagliflozin after derivatization with NBD‐Cl in human plasma using factorial design experiments. LUMINESCENCE 2019; 34:576-584. [DOI: 10.1002/bio.3640] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 04/01/2019] [Accepted: 04/08/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Mahmoud A. Omar
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of PharmacyTaibah University Medinah Saudi Arabia
- Department of Analytical Chemistry, Faculty of PharmacyMinia University Egypt
| | - Hytham M. Ahmed
- Pharmaceutical Analysis Department, Faculty of PharmacyMenoufia University Egypt
| | - Mohamed A. Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of PharmacyTanta University Egypt
| | - Hany A. Batakoushy
- Pharmaceutical Analysis Department, Faculty of PharmacyMenoufia University Egypt
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