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El-Sayed HM, Abdellatef HE, Hendawy HAM, El-Abassy OM, Ibrahim H. A highly sensitive and green electroanalytical method for the determination of favipiravir in pharmaceutical and biological fluids. BMC Chem 2023; 17:109. [PMID: 37653428 PMCID: PMC10472665 DOI: 10.1186/s13065-023-01023-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 08/17/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND Favipiravir is currently used for the treatment of coronavirus disease-2019 (COVID-19). OBJECTIVE A highly sensitive and eco-friendly electroanalytical method was developed to quantify favipiravir. METHOD The voltammetric method optimized a sensor composed of reduced graphene oxide / modified carbon paste electrode in the presence of an anionic surfactant, improving the favipiravir detection limit. The investigation reveals that favipiravir-oxidation is a diffusion-controlled irreversible process. The effects of various pH and scan rates on oxidation anodic peak current were investigated. RESULTS The developed method offers a wide linear dynamic range of 1.5-420 ng/mL alongside a higher sensitivity with a limit of detection in the nanogram range (0.44 ng/mL) and a limit of quantification in the low nanogram range (1.34 ng/mL). CONCLUSION The proposed method was applied for the determination of favipiravir in the dosage form, human plasma and urine samples. The developed method exhibited good selectivity in the presence of two potential electroactive biological interferants, uric acid which increases during favipiravir therapy and the recommended co-administered vitamin C. The organic solvent-free method greenness was evaluated via the Green Analytical Procedure Index, The present work offers a simple, sensitive and environment-friendly method fulfilling green chemistry concepts.
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Affiliation(s)
- Heba M El-Sayed
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Hisham Ezzat Abdellatef
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | | | - Omar M El-Abassy
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, Badr, 11829, Egypt.
| | - Hany Ibrahim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, Badr, 11829, Egypt
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El-Sayed HM, El-Abassy OM, Abdellatef HE, Hendawy HAM, Ibrahim H. Green Spectrophotometric Platforms for Resolving Overlapped Spectral Signals of Recently Approved Antiparkinsonian Drug (Safinamide) in the Presence of Its Synthetic Precursor (4-Hydroxybenzaldehyde): Applying Ecological Appraisal and Comparative Statistical Studies. J AOAC Int 2022; 106:26-33. [PMID: 36214622 PMCID: PMC9619678 DOI: 10.1093/jaoacint/qsac123] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Safinamide, a highly specific inhibitor of monoamine oxidase B, is a new approved prodigious therapy used to cure Parkinson's disease (PD). OBJECTIVE Before marketing and selling a medicine, manufacturers must guarantee that the manufacturing process is consistent by monitoring levels of process-related chemicals and drug contaminants. Therefore, five precise, fast, and accurate spectrophotometric techniques were employed and evaluated for the simultaneous measurement of safinamide and its synthetic precursor, 4-hydroxybenzaldehyde. METHODS The first derivative, derivative ratio, ratio difference, dual wavelength, and Fourier self-deconvolution methods worked well to resolve spectral overlap of safinamide and its synthetic precursor, 4-hydroxybenzaldehyde. RESULTS Safinamide detection limits ranged from 0.598 to 1.315 µg/mL, whereas the 4-hydroxybenzaldehyde detection limit was found to be as low as 0.327 µg/mL. CONCLUSION According to International Council for Harmonisation (ICH) criteria, all procedures were verified and confirmed to be accurate, robust, repeatable, and precise within reasonable range. No considerable variation was found when comparing the outcomes of the suggested approaches to the findings of previously published methods. The ecological value of established methods was measured: the national environmental methods index (NEMI), the analytical eco-scale, the analytical greenness metric (AGREE), and the green analytical process index (GAPI) were used. HIGHLIGHTS This is the first spectrophotometric determination of safinamide drug in the presence of its synthetic precursor. Five simple and efficient spectrophotometric approaches were employed to determine a newly approved antiparkinsonian drug in the presence of its synthetic precursor simultaneously. Ecological appraisal was performed for the developed methods using four assessment tools.
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Affiliation(s)
- Heba M El-Sayed
- Department of Analytical Chemistry, Faculty of pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Omar M El-Abassy
- Corresponding author: Correspondence to Omar M El-Abassy, Teaching assistant of Analytical Chemistry, Department of Pharmaceutical Chemistry Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, Egypt. E-mail:
| | - Hisham Ezzat Abdellatef
- Department of Analytical Chemistry, Faculty of pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Hassan A M Hendawy
- Pharmaceutical Chemistry Department Egyptian Drug Authority, Giza, Egypt
| | - Hany Ibrahim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo 11829, Egypt
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Ibrahim H, El-Abassy OM, Abdellatef HE, Hendawy HAM, El-Sayed HM. Simultaneous analysis of two drugs used as supportive treatment for COVID-19: comparative statistical studies and analytical ecological appraisal. BMC Chem 2022; 16:72. [PMID: 36167604 PMCID: PMC9514717 DOI: 10.1186/s13065-022-00860-8] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 08/25/2022] [Indexed: 11/22/2022] Open
Abstract
Pharmaceutical quality control products (QC) demand quick, sensitive, and cost-effective methods to ensure high production at a low cost. Green analytical methods are also becoming more common in pharmaceutical research to cut down on the amount of waste that goes into the environment. Meclizine hydrochloride (MZH) and pyridoxine hydrochloride (PYH) are reported to be excellent for calming down COVID-19. As a result, the amount of MZH and PYH manufactured by multinational pharmaceutical organizations has increased considerably during the last several months. The present work proposes three environmentally friendly, straightforward, and sensitive spectrophotometric procedures for quantification of MZH in the presence of PYH in a pure and marketable formulations. The approaches under examination include ratio subtraction (RSM), induced dual wavelength (IDW), and Fourier self-deconvolution (FSD). PYH, on the other hand, was directly quantified at 290 nm. For both drugs, the procedures follow Beer’s law in the range of (5–50 µg/mL). The RSM, IDW, and FSD methods, as well as the zero-order approach for PYH, have all been verified in accordance with ICH standards. The ecological value of established methodologies was determined using four distinct ways: the national environmental methods index (NEMI), the analytical Eco-scale, the Analytical Greenness Metric (AGREE), and the green analytical process index (GAPI). Comparing the findings to those of the previously described spectrophotometric technique, no major changes were identified.
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Affiliation(s)
- Hany Ibrahim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, 11829, Egypt
| | - Omar M El-Abassy
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, 11829, Egypt.
| | - Hisham Ezzat Abdellatef
- Department of Analytical Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Hassan A M Hendawy
- Pharmaceutical Chemistry Department, Egyptian Drug Authority, Giza, Egypt
| | - Heba M El-Sayed
- Department of Analytical Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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El-sayed HM, Abdel-Raoof AM, Abdellatef HE, Hendawy HA, El-Abassy OM, Ibrahim H. Versatile eco-friendly electrochemical sensor based on chromium-doped zinc oxide nanoparticles for determination of safinamide aided by green assessment criteria. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107900] [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: 11/30/2022]
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Hussien EM, Hegazy M, Abdel Fattah L, Abdellatef HE, Abd El‐Aziz M, El‐Sayed HM. Selective Determination of Nicorandil with a Single Planar Solid‐state Potentiometric Ion Selective Electrode. ELECTROANAL 2021. [DOI: 10.1002/elan.202100400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Emad Mohamed Hussien
- Department of Analytical Chemistry National Organization for Drug Control & Research (NODCAR) Giza 12553 Egypt
| | - Maha Hegazy
- Department of Analytical Chemistry Faculty of Pharmacy Cairo University Cairo 12613 Egypt
| | - Laila Abdel Fattah
- Department of Analytical Chemistry Faculty of Pharmacy Cairo University Cairo 12613 Egypt
- Pharmaceutical Analytical Chemistry Department College of Pharmaceutical Sciences and Drug Manufacturing Misr University for Science & Technology 6th of October City Giza 12566 Egypt
| | - Hisham Ezzat Abdellatef
- Department of Analytical Chemistry Faculty of Pharmacy Zagazig University Zagazig 44519 Egypt
| | - Mai Abd El‐Aziz
- Pharmaceutical Analytical Chemistry Department College of Pharmaceutical Sciences and Drug Manufacturing Misr University for Science & Technology 6th of October City Giza 12566 Egypt
| | - Heba Mohamed El‐Sayed
- Department of Analytical Chemistry Faculty of Pharmacy Zagazig University Zagazig 44519 Egypt
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Ayad MM, Abdellatef HE, Hosny MM, Kabil NAS. High Performance Liquid Chromatographic estimation of pioglitazone hydrochloride and losartan potassium. MGC 2018. [DOI: 10.3233/mgc-180267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Magda Mohamed Ayad
- Department of Analytical Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | | | - Mervat Mohamed Hosny
- Department of Analytical Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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Ayad MM, Abdellatef HE, Hosny MM, Sharaf YA. Conductometric titration method for determination of naftidrofuryl oxalate, propafenone HCl and sotalol HCl using silver nitrate. ACTA ACUST UNITED AC 2012. [DOI: 10.5155/eurjchem.3.3.332-336.637] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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El-Aroud KA, Abushoffa AM, Abdellatef HE. Spectrophotometric and spectrofluorimetric methods for the determination of tranexamic acid in pharmaceutical formulation. Chem Pharm Bull (Tokyo) 2007; 55:364-7. [PMID: 17329872 DOI: 10.1248/cpb.55.364] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [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: 11/22/2022]
Abstract
Two simple and sensitive spectrophotometric and fluorimetric methods for the determination of tranexamic acid in tablets are developed. The methods are based on condensation the primary amino group of tranexamic acid with acetyl acetone and formaldehyde producing a yellow coloured product, which is measured spectrophotometrically at 335 nm or fluorimetrically at 480 nm the colour was stable for at least 1 h. Beer's law was valid within a concentration rang of 0.05-2.0 microg ml-1 spectrophotometrically and 0.05-0.25 microg ml-1 fluorimetrically. All the variables were studied to optimize the reaction conditions. No interference was observed in the presence of common pharmaceutical excipints. The validity of both methods was tested by analyzing tranexamic acid in its pharmaceutical preparations. Good recoveries were obtained and the results were comparable with those obtained by standard method.
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Ayad MM, Shalaby AA, Abdellatef HE, Elsaid HM. Spectrophotometric determination of certain cephalosporins through oxidation with cerium(IV) and 1-chlorobenzotriazole. J Pharm Biomed Anal 1999; 20:557-64. [PMID: 10701972 DOI: 10.1016/s0731-7085(99)00014-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- M M Ayad
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Egypt
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Abstract
Two sensitive spectrophotometric and atomic absorption spectrometric procedures are developed for the determination of certain cephalosporins (cefotaxime sodium and cefuroxime sodium). The spectrophotometric methods are based on the charge-transfer complex formation between these drugs as n-donors and 7,7,8,8-tetracyanoquinodimethane (TCNQ) or p-chloranilic acid (p-CA) as pi-acceptors to give highly coloured complex species. The coloured products are measured spectrophotometrically at 838 and 529 nm for TCNQ and p-CA, respectively. Beer's law is obeyed in a concentration range of 7.6-15.2 and 7.1-20.0 microg x ml(-1) with TCNQ, 95.0-427.5 and 89.0-400.5 microg x ml-1 with p-CA for cefotaxime sodium and cefuroxime sodium, respectively. The atomic absorption spectrometric methods are based on the reaction of the above cited drugs after their alkali-hydrolysis with silver nitrate or lead acetate in neutral aqueous medium. The formed precipitates are quantitatively determined directly or indirectly through the silver or lead content of the precipitate formed or the residual unreacted metal in the filtrate by atomic absorption spectroscopy. The optimum conditions for hydrolysis and precipitation have been carefully studied. Beer's law is obeyed in a concentration range of 1.9-11.4 and 1.78-8.90 microg x ml(-1) with Ag(I), 14.2-57.0 and 13.3-53.4 microg x ml-1 with Pb(II) for cefotaxime sodium and cefuroxime sodium, respectively (for both direct and indirect procedures). The spectrophotometric and the atomic absorption spectrometric procedures hold well their accuracy and precision when applied to the analysis of cefotaxime sodium and cefuroxime sodium dosage forms.
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Affiliation(s)
- M M Ayad
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Egypt
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Abdellatef HE, Ayad MM, Taha EA. Spectrophotometric and atomic absorption spectrometric determination of ramipril and perindopril through ternary complex formation with eosin and Cu(II). J Pharm Biomed Anal 1999; 18:1021-7. [PMID: 9925338 DOI: 10.1016/s0731-7085(98)00113-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.9] [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: 11/25/2022]
Abstract
Two sensitive, spectrophotometric and atomic absorption spectrometric procedures are developed for the determination of ramipril and perindopril. Both methods are based on the formation of a ternary complex, extractable with chloroform, between copper(II), eosin and the two cited drugs. Spectrophotometrically under the optimum condition, the ternary complexes showed an absorption maximum at 535 nm, with apparent molar absorptivities of 6.55 and 4.00 x 10(3) mol(-1) x cm(-1) and Sandell's sensitivities of 5.80 x 10(-2) and 1.04 x 10(-1) microg x cm(-2) for perindopril and ramipril, respectively. The solution of ternary complex obeyed Beer's law in concentration ranges 10-60 and 20-100 microg x ml(-1) for perindopril and ramipril, respectively. The proposed method was applied to the determination of the two cited drugs in pharmaceutical tablets. The atomic absorption spectrometric method, directly through the quantitative determination of copper content of the organic extract of the complex, was also investigated for the purpose of enhancing the sensitivity of the determination. The spectrophotometric and atomic absorption spectrometric procedures hold their accuracy and precision well when applied to the determination of ramipril and perindopril dosage forms.
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Affiliation(s)
- H E Abdellatef
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Egypt
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Abstract
Simple, rapid, accurate and sensitive spectrophotometric methods are described for the determination of perindopril. The methods are based on the reaction of this drug as n-electron donor with 2,3-dichloro-5,6-dicyano-p-benzoquinone(DDQ)-7,7,8,8- tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), chloranil (CL) and p-chloranilic acid (p-CA) as pi-acceptors to give highly coloured complex species. The coloured products are measured spectrophotometrically at 588, 843, 419, 550 and 520 nm for DDQ, TCNQ, TCNE, CL and p-CA, respectively, optimization of different experimental conditions is described. Beer's law is obeyed in the range of 20-200 micrograms ml-1 and colours were produced in non-aqueous media and were stable for at least 1 h. Application of the suggested methods to perindopril tablets are presented.
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Affiliation(s)
- H E Abdellatef
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Egypt
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Abdellatef HE, Elbalkiny MN, Aboulkheir A. Determination of sulphacetamide, sulphadimidine or sulphathiourea in the presence of their degradation products using first derivative spectrophotometry. J Pharm Biomed Anal 1989; 7:571-6. [PMID: 2490761 DOI: 10.1016/0731-7085(89)80222-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [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: 01/01/2023]
Abstract
A method is presented for the determination of sulphacetamide sodium, sulphadimidine and sulphathiourea in the presence of their acid-induced degradation products using first derivative spectrophotometry. By measuring the absolute value of the first derivative curves at the zero contribution of the corresponding degradation products, the concentration of the intact drug can be calculated directly without interference of the degradation product. The validity of the method was confirmed using synthetic mixtures of the intact drugs with their degradation products.
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Affiliation(s)
- H E Abdellatef
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, University of Zagazig, Egypt
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