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Binkadem MS, AlSalem HS, Al-Goul ST, El Hamd MA, Oraby M, Ali Zainy FM, Abdel-Lateef MA. Validated spectrofluorimetric and resonance Rayleigh scattering methods for determining naftidrofuryl in varied pharmaceutical samples based on its interaction with erythrosin B. LUMINESCENCE 2023; 38:1836-1843. [PMID: 37555794 DOI: 10.1002/bio.4570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 07/29/2023] [Accepted: 08/06/2023] [Indexed: 08/10/2023]
Abstract
Naftidrofuryl is a vasodilator medication used for treating cerebral and peripheral vascular diseases. In this study, two spectroscopical techniques, spectrofluorimetric and resonance Rayleigh scattering (RRS), were utilized to quantify naftidrofuryl in its pharmaceutical samples. The developed methodologies in this study rely on a facile process of forming an association complex between erythrosine B reagent and naftidrofuryl under acidic conditions. The fluorimetric assay is based on the ability of naftidrofuryl to quench and decrease the native fluorescence intensity of the reagent when measured at λ emis . = 550 nm ( λ excit . = 526 nm). Under similar reaction conditions, the RRS method relies on the observed amplification in the RRS spectrum of the reagent at a wavelength of 577 nm following its interaction with naftidrofuryl. The methods exhibited linearity within the ranges 0.2-1.6 μg/ml (r2 = 0.999) and 0.1-1.4 μg/ml (r2 = 0.9994), with limit of quantitation values of 0.146 and 0.099 μg/ml, and limit of detection values of 0.048 and 0.032 μg/ml, for the fluorometric and the RRS methods, respectively. Moreover, the quenching between the dye and naftidrofuryl was studied using Stern-Volmer analysis, and the methodologies were experimentally optimized and validated. Additionally, acceptable recoveries were achieved when the procedures were applied to determine naftidrofuryl in pharmaceutical samples.
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Affiliation(s)
- Mona Saad Binkadem
- Department of Chemistry, College of Science, University of Jeddah, P.O. Box 80327, Jeddah, Saudi Arabia
| | - Huda Salem AlSalem
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, Saudi Arabia
| | - Soha Talal Al-Goul
- Department of Chemistry, College of Sciences & Arts, King Abdulaziz University, Rabigh, Saudi Arabia
| | - 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
| | - Mohamed Oraby
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt
| | - Faten M Ali Zainy
- Chemistry Department, Faculty of Science, University of Jeddah, P.O. Box 80327, Jeddah, 21589, Saudi Arabia
| | - Mohamed A Abdel-Lateef
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
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Protein-assisted biomimetic synthesis of nanoscale gadolinium-integrated polypyrrole for synergetic and ultrasensitive electrochemical assays of nicardipine in biological samples. Anal Chim Acta 2022; 1199:339567. [DOI: 10.1016/j.aca.2022.339567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 01/10/2022] [Accepted: 01/31/2022] [Indexed: 01/01/2023]
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Almahri A, Abdel-Lateef MA, Samir E, Derayea SM, El Hamd MA. Resonance Rayleigh scattering and spectrofluorimetric approaches for the selective determination of rupatadine using erythrosin B as a probe: application to content uniformity test. LUMINESCENCE 2020; 36:651-657. [PMID: 33179860 DOI: 10.1002/bio.3983] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/28/2020] [Accepted: 11/06/2020] [Indexed: 01/26/2023]
Abstract
In this study, spectrofluorimetric and resonance Rayleigh scattering techniques were applied for the first time for determination of rupatadine through two validated methods. The proposed methods were based on a facile association complex formation between rupatadine and erythrosin B reagent in acidic medium. Spectrofluorimetric determination relied on the quenching effect of rupatadine on the fluorescence intensity of erythrosin B at 556 nm (excitation = 530 nm). Conversely, the resonance Rayleigh scattering (RRS) method relied on enhancement in the resonance Rayleigh scattering spectrum of erythrosin B at 344 nm after the addition of rupatadine. The developed methods produced linear results over ranges 0.15-2.0 μg/ml and 0.1-1.5 μg/ml, with detection limits of 0.030 μg/ml and 0.018 μg/ml for the spectrofluorimetric method and the RRS method, respectively. All reaction conditions for rupatadine-erythrosin B formation were optimized experimentally and both methods were validated according to International Council for Harmonisation guidelines. The developed methods were applied to estimate rupatadine content in its pharmaceutical tablet dosage form with acceptable recoveries. Furthermore, a content uniformity test for the commercial rupatadine tablets was successfully applied by the suggested spectroscopic methods according to United States Pharmacopeia guidelines.
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Affiliation(s)
- Albandary Almahri
- General Courses Unit, Faculty of Sciences and Arts, King Khalid University, Dhahran Aljanoub, Saudi Arabia
| | - Mohamed A Abdel-Lateef
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Ebtihal Samir
- Department of Analytical Chemistry, Faculty of Pharmacy, Deraya University, New Minia, 61519, Egypt
| | - Sayed M Derayea
- Department of Analytical Chemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Mohamed A El Hamd
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, South Valley University, Qena, 83523, Egypt.,Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Al Dawadmi, 11961, Shaqra, Kingdom of Saudi Arabia
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Goldooz H, Badiei A, Shiravand G, Ghasemi JB, Mohammadi Ziarani G. A highly selective Ag+ sensor based on 8-hydroxyquinoline functionalized graphene oxide -silica nanosheet and its logic gate behaviour. JOURNAL OF MATERIALS SCIENCE: MATERIALS IN ELECTRONICS 2019; 30:17693-17705. [DOI: 10.1007/s10854-019-02119-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 08/27/2019] [Indexed: 06/17/2023]
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Huang Y, Yang J, Cheng J, Zhang Y, Yuan H. A novel spectral method for determination of trace malathion using EryB as light scattering probe by resonance Rayleigh scattering technique. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 213:104-110. [PMID: 30684878 DOI: 10.1016/j.saa.2019.01.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/18/2018] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
A convenient and sensitive spectrophotometric methods was proposed for determination of Malathion (Mala) using Erythrosin B (EryB) as a probe through the Resonance Rayleigh scattering (RRS) technique. The interaction between EryB, Pd2+and malathion in the system was investigated by fluorescence, RRS and UV-Vis spectroscopy. Under the optimum conditions, the RRS intensity of EryB, Pd2+ and malathion was weak when exist in alone or any two kinds, however, the RRS intensity of the EryB-Pd2+-Mala system had an obvious enhancement due to Pd2+ could interact with the hydrolysis products of Mala and EryB each other form a new complexes. At the same time, the fluorescence intensity of EryB was decreased significantly in the presence of Pd2+, and the fluorescence intensity of EryB-Pd2+ system further decreased when Mala added, interestingly. So it was further proved that there was a forming complex in EryB-Pd2+-Mala system. Under the optimal conditions, the RRS enhanced intensity of the system was linearly proportional to the Mala's concentration in the range of 0.012-0.8 μg/mL, and the LOD was 1.7 ng/mL, with the correlation coefficient was R2 = 0.9960. So, a new method for determination of Mala was established and this method has been demonstrated in real sample with satisfactory results.
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Affiliation(s)
- Yunmei Huang
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, PR China
| | - Jidong Yang
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, PR China; School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
| | - Jiawei Cheng
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, PR China
| | - Yuhui Zhang
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, PR China
| | - Haiyan Yuan
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, PR China
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Fulton LA, Zhang P, Seitz WR, Tsavalas JG, Planalp RP. Dynamic Aggregation of Poly-N-Isopropylacrylamide Characterized Using Second-Order Scattering. APPLIED SPECTROSCOPY 2018; 72:1341-1348. [PMID: 29756990 DOI: 10.1177/0003702818778601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A second-order scattering (SOS) method is presented for the characterization of aqueous particle suspensions undergoing aggregation. Scattering intensities are measured at 90° by a standard fluorimeter and referenced against dynamic light scattering (DLS) measurements to determine particle size increase in a metal-promoted aggregation process for 0.05 mg/mL aqueous poly-N-isopropylacrylamide (PNIPAm), MW ∼10 k g/mol. Particle size increases monotonically from 30 nm to 210 nm at temperature 308 K. A further validation of the SOS method was performed using monodisperse polystyrene reference particles sized at 52 nm, 101 nm, 151 nm, and 206 nm, which demonstrated the technique's accuracy to within 6% and its versatility with respect to sample composition. The technique is ideal for monitoring colloidal stability and macromolecular assembly and it can be performed at lower concentrations than are typically used in DLS.
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Affiliation(s)
- Luke A Fulton
- 1 Department of Chemistry, University of New Hampshire, Durham, NH, USA
| | - Pei Zhang
- 2 Materials Science Program, University of New Hampshire, Durham, NH, USA
| | - W Rudolf Seitz
- 1 Department of Chemistry, University of New Hampshire, Durham, NH, USA
| | - John G Tsavalas
- 1 Department of Chemistry, University of New Hampshire, Durham, NH, USA
- 2 Materials Science Program, University of New Hampshire, Durham, NH, USA
| | - Roy P Planalp
- 1 Department of Chemistry, University of New Hampshire, Durham, NH, USA
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A facile and environment-friendly method for fabrication of polymer brush. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1934-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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