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Sun W, Wang L, Zhang X, Liu M, Liu P, Xu P, Qu Y. A synchronous-fluorescence analysis method combing with simple one-step extraction for determination of leonurine in traditional Chinese medicine. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 39254472 DOI: 10.1039/d4ay01233j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
Synchronous fluorescence spectroscopy (SFS) technology exhibits significant advantages in identifying target fluorescence signals within complex mixtures of multiple fluorescent compounds, owing to their closely overlapping spectra. In this study, a SFS method is reported for the first time for the direct analysis of leonurine in drugs containing concurrent natural products. By setting the wavelength interval (Δλ) to 30 nm, the characteristic emission peak of leonurine is observed at 307 nm, which increases proportionally with the concentration of leonurine without spectral overlap from other fluorescent species. The limit of detection (LOD) is estimated to be about 0.22 μM, and a low linear range of 0 to 20 μM is obtained. The common cations, anions and concomitant compounds display no interference with the SFS signal of leonurine, supporting the practical application of this method. Thus, we successfully applied this SFS method to detect leonurine in several real samples (leonurus granules, capsules, ointment and pills), in which the good relative standard deviation (RSD) values (0.04-4.24%) and recoveries (95.63-113%) were obtained. As a result, this work provides an efficient and convenient method to identify the target active compound from natural products without complex pre-treatment to diminish the fluorescent chaos that might be serving a potential role in the study of traditional Chinese medicine.
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Affiliation(s)
- Wenwen Sun
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
| | - Le Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
| | - Xiao Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
| | - Mengxia Liu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
| | - Pan Liu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China.
| | - Ping Xu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China.
| | - Yi Qu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
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Farid NA, Youssef NF, Abdellatef HE, Sharaf YA. Spectrofluorimetric methods for the determination of mirabegron by quenching tyrosine and L-tryptophan fluorophores: Recognition of quenching mechanism by stern volmer relationship, evaluation of binding constants and binding sites. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122473. [PMID: 36801734 DOI: 10.1016/j.saa.2023.122473] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Green spectrofluorimetric methods have been adopted for the determination of Mirabegron (MG) in pure drug and pharmaceutical dosage form. The developed methods based on fluorescence quenching of tyrosine and L-tryptophan amino acids fluorophores by the effect of Mirabegron as a quencher. Experimental conditions of the reaction were studied and optimized. The Fluorescence quenching (ΔF) values were proportional to the concentration range of MG 2-20 μg/ml for the tyrosine-MG system in buffered media pH 2 and 1-30 μg/ml for L-tryptophan-MG system pH 6. Good correlation coefficients with low detection limits of 0.163 and 0.234 μg/ml for the two systems respectively. Method validation was applied according to ICH guidelines. The cited methods were successively applied for MG determination in tablet formulation. No statistically significant difference between the results of the cited and the reference methods regarding t and F tests. The proposed spectrofluorimetric methods are simple, rapid, eco-friendly and can contribute to MG's methodologies in quality control labs. Stern-Volmer relationship, the effect of temperature, quenching constant (Kq), and UV spectra were studied to identify the mechanism by which the quenching might occur. The results demonstrated that fluorescence quenching of tyrosine was a dynamic quenching process and L-tryptophan was static. The double log plots were constructed to determine the binding constants and binding sites. The greenness profile of the developed methods has been assessed by Green Analytical procedure index (GAPI) and Analytical Greenness Metric Approach (AGREE).
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Affiliation(s)
- Naira A Farid
- Pharmaceutical Chemistry Department, National Organization for Drug Control and Research (NODCAR), Giza, Egypt
| | - Nadia F Youssef
- Pharmaceutical Chemistry Department, National Organization for Drug Control and Research (NODCAR), Giza, Egypt
| | - Hisham E Abdellatef
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Yasmine A Sharaf
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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Mukherjee S, Dhar S. Synchronous fluorescence techniques for the detection and monitoring of selected fluorescent dyes in binary and multifluorophoric mixtures. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
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4
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Hajihosseinloo A, Banitalebi Dehkordi A, Vojoudi H, Ghasemi JB, Rofouei MK, Badiei A. N-doped carbon hollow spheres for the simultaneous determination of atorvastatin and amlodipine by synchronous fluorescence spectroscopy. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106983] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Elbalkiny HT, Yehia AM, Riad SM, Elsaharty YS. Derivative constant wavelength synchronous fluorescence spectrometry for the simultaneous detection of cefadrine and cefadroxil in water samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117903. [PMID: 31887677 DOI: 10.1016/j.saa.2019.117903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 12/01/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
A sensitive accurate spectrofluorimetric technique was developed to detect cefadroxil and cefradine traces in water samples simultaneously, by applying a procedure based on the formation of hydrolysis products corresponding to these compounds by sodium hydroxide (1 N NaOH) treatment. The conventional and the synchronous fluorescence spectra of these hydrolyzed products were totally overlapped making resolving of this mixture impossible. The second-derivative constant-wavelength synchronous fluorescence spectra allowed their detection simultaneously in a single scan after experimental conditions optimization, which was measured at 390 nm and 379 nm for cefadroxil and cefradine, respectively at Δλ = 30.0. The calibration curves between derivative synchronous fluorescence intensity and drugs concentration showed suitable linear correlation in the range of 0.1 to 5 μg.mL-1 for cefadroxil and 0.5-10 μg.mL-1 for cefradine. The proposed fluorimetric method is superior in being simple, environmental friendly and cost effective in comparison to the previously published reported methods.
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Affiliation(s)
- Heba T Elbalkiny
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787 6(th) October City, Egypt.
| | - Ali M Yehia
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini 13 Street, 11562 Cairo, Egypt; Chemistry Department, School of Pharmacy and Pharmaceutical Industries, Badr University in Cairo, Badr City, 11829, Cairo, Egypt
| | - Safa'a M Riad
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787 6(th) October City, Egypt; Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini 13 Street, 11562 Cairo, Egypt
| | - Yasser S Elsaharty
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini 13 Street, 11562 Cairo, Egypt
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6
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Mukherjee S, Betal S, Chattopadhyay AP. Dual sensing and synchronous fluorescence spectroscopic monitoring of Cr 3+and Al 3+ using a luminescent Schiff base: Extraction and DFT studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117837. [PMID: 31784221 DOI: 10.1016/j.saa.2019.117837] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/27/2019] [Accepted: 11/19/2019] [Indexed: 06/10/2023]
Abstract
A well designed, new pyrene based small molecule (L) was synthesized from 1:1 condensation reaction of 1-aminopyrene and 6-(1,3-benzodioxal-5-yl)-2-pyridine carboxaldehyde which was characterized by absorption, emission spectrometry, FTIR, NMR and mass studies. Interestingly the UV-vis and fluorescence spectroscopic studies revealed that the ligand (L) works as a dual turn-on luminescent chemosensor for chromium(III) (Cr3+) and aluminium(III) (Al3+) in aqueous environment which were further supported by DFT and TDDFT studies. L shows a significant colour change from pale yellow to reddish yellow with a detection limit of ~10-9 M in the presence of Cr3+ and Al3+ whereas there were no noteworthy changes in the presence of other monovalent and divalent metal ions. The molecular signaling in the presence of Cr3+, Al3+, Fe3+ and EDTA was compared with advanced level combinational INHIBIT gate based on 4 input logic gates. Herein, first derivative constant wavelength synchronous fluorescence spectroscopy (1st DCWSFS) was applied for the determination of Cr3+, Al3+ ion concentrations in a mixture via increment of spectral resolution of the respective overlapping peaks. 1st DCWSFS is reported to be used in pharmaceuticals but very few works have been done for determination of metal ion concentration in environmental sample without prior separation. The individual Cr3+and Al3+ ion concentrations in a mixture were determined through liquid-liquid extraction process and the efficiencies were compared with 1st derivative SFS method. It was observed that 1st derivative SFS process is more efficient than conventional liquid-liquid extraction process. Therefore, 1st DCWSFS method using sensor L might be useful as a diagnostic tool for detection of individual metal ion concentrations (Cr3+ and Al3+) from a mixture which will be cost-effective, time saving and more precise.
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Affiliation(s)
- Soma Mukherjee
- Department of Environmental Science, University of Kalyani, Kalyani, Nadia - 741235, West Bengal, India.
| | - Soumi Betal
- Department of Environmental Science, University of Kalyani, Kalyani, Nadia - 741235, West Bengal, India
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Arafa RM, Yehia AM, Abbas SS, Amer SM. Exploiting steroid-cyclodextrin complexes for selective determination of Estradiol Valerate and Norethisterone Acetate by synchronous fluorescence spectrofluorimetry. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117237. [PMID: 31176154 DOI: 10.1016/j.saa.2019.117237] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/26/2019] [Accepted: 06/01/2019] [Indexed: 06/09/2023]
Abstract
Inclusion complexes of β-cyclodextrin with Estradiol valerate (EST) or Norethisterone acetate (NOR) have been utilized for synchronous fluorescence spectrofluorimetry. β-cyclodextrin improves fluorescence intensity as well as water solubility of the studied drugs. Samples in aqueous medium adjusted with ammonia were used in synchronous fluorescence to resolve the overlapped emission spectra. The effects of β-cyclodextrin concentration and Δ λ have been optimized for sensitive and selective analysis of EST and NOR binary mixture. Synchronous fluorescence intensity of the two drugs is measured at Δ λ of 70 nm. EST and NOR can be simultaneously determined at 230 nm and 270 nm, respectively. Calibration curves were linear over the ranges of 0.5-6.0 μg mL-1 and 0.2-2.0 μg mL-1 for EST and NOR, respectively. Official guidelines were followed to estimate the validation parameters of the proposed method. The detection limits were 0.08 μg mL-1 for EST and 0.007 μg mL-1 for NOR. The proposed method was successfully used for the analysis of EST and NOR in their commercial preparations and the obtained results revealed statistical agreement with those obtained by application of the reported method for both drugs. The proposed method is compared favorably to previously published method in terms of simplicity and hazardous solvent consumption.
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Affiliation(s)
- Reham M Arafa
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr El-Aini street, 11562 Cairo, Egypt.
| | - Ali M Yehia
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr El-Aini street, 11562 Cairo, Egypt; Chemistry Department, School of Pharmacy and Pharmaceutical Industries, Badr University in Cairo, Badr City, 11829 Cairo, Egypt
| | - Samah S Abbas
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr El-Aini street, 11562 Cairo, Egypt
| | - Sawsan M Amer
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr El-Aini street, 11562 Cairo, Egypt
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Lamhasni T, El-Marjaoui H, El Bakkali A, Lyazidi SA, Haddad M, Ben-Ncer A, Benyaich F, Bonazza A, Tahri M. Air pollution impact on architectural heritage of Morocco: Combination of synchronous fluorescence and ATR-FTIR spectroscopies for the analyses of black crusts deposits. CHEMOSPHERE 2019; 225:517-523. [PMID: 30897475 DOI: 10.1016/j.chemosphere.2019.03.109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 06/09/2023]
Abstract
The work is focusing on air pollution impacts on historical limestone buildings located in urban areas in Morocco. Black crusts sampled on the façades of two ancient limestone monuments, dating back to the 12th and 20th centuries edified in the cities of Salé and Casablanca, have been analyzed by means of ATR-FTIR and synchronous fluorescence spectroscopies. Infrared analyses revealed degradation products, mainly gypsum due to calcite sulphation under wetness and SO2 rich oil fired soot, and oxalates due to ancient biological weathering. Synchronous fluorescence permitted the identification of the most hazardous PAHs along with other non-identified fluorescent organics; this technique appeared efficient and suitable for the analysis of fluorescent pollutants entrapped in black crusts. Such results keeping track of air pollution causing disfigurement of architectural heritage must alarm both cultural heritage and environmental decision makers.
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Affiliation(s)
- Taibi Lamhasni
- Laboratoire de Spectrométrie des Matériaux et Archéomatériaux (LASMAR), Unité de Recherche Associée au CNRST, URAC 11, Université Moulay Ismail, Faculté des Sciences, Zitoune BP 11201, 50000 Meknès, Morocco
| | - Houssam El-Marjaoui
- Laboratoire de Spectrométrie des Matériaux et Archéomatériaux (LASMAR), Unité de Recherche Associée au CNRST, URAC 11, Université Moulay Ismail, Faculté des Sciences, Zitoune BP 11201, 50000 Meknès, Morocco
| | - Abdelmajid El Bakkali
- Laboratoire de Spectrométrie des Matériaux et Archéomatériaux (LASMAR), Unité de Recherche Associée au CNRST, URAC 11, Université Moulay Ismail, Faculté des Sciences, Zitoune BP 11201, 50000 Meknès, Morocco
| | - Saadia Ait Lyazidi
- Laboratoire de Spectrométrie des Matériaux et Archéomatériaux (LASMAR), Unité de Recherche Associée au CNRST, URAC 11, Université Moulay Ismail, Faculté des Sciences, Zitoune BP 11201, 50000 Meknès, Morocco.
| | - Mustapha Haddad
- Laboratoire de Spectrométrie des Matériaux et Archéomatériaux (LASMAR), Unité de Recherche Associée au CNRST, URAC 11, Université Moulay Ismail, Faculté des Sciences, Zitoune BP 11201, 50000 Meknès, Morocco
| | - Abdelouahed Ben-Ncer
- Institut National des Sciences de l'Archéologie et du Patrimoine (INSAP), BP 6828, Madinat al Irfane, avenue Allal El Fassi, Angle rues 5 et 7, Rabat-Instituts, Morocco
| | - Fouad Benyaich
- Laboratoire de Spectrométrie des Matériaux et Archéomatériaux (LASMAR), Unité de Recherche Associée au CNRST, URAC 11, Université Moulay Ismail, Faculté des Sciences, Zitoune BP 11201, 50000 Meknès, Morocco
| | - Alessandra Bonazza
- Institute of Atmospheric Sciences and Climate, ISAC-CNR, via Gobetti 101, 40129 Bologna, Italy
| | - Mounia Tahri
- Laboratoire d'Analyse par Activation Neutronique, Centre National de l'Energie, des Sciences et des Techniques Nucléaires (CNESTEN), Rabat, Morocco
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Tang J, Wang Z, Zhou J, Lu Q, Deng L. Enzyme-free hybridization chain reaction-based signal amplification strategy for the sensitive detection of Staphylococcus aureus. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:41-47. [PMID: 30818216 DOI: 10.1016/j.saa.2019.02.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 02/16/2019] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
In this study, based on hybridization chain reaction (HCR) amplification and graphene oxide (GO), we developed a facile enzyme-free signal amplification strategy for sensitive detection of Staphylococcus aureus (S. aureus). Two hairpin probes (HP1 and HP2) labeled by fluorophore 6-carboxyfluorescein (FAM) are designed. The HP1 and HP2 can not only trigger to the HCR but also form a long nicked double strand DNA (dsDNA) with the target (16S rRNA). In the absence of target (16 s RNA), the free FAM-labeled HP1 and HP2 are adsorbed by the GO via π-π stacking, the fluorescence signal is quenched. In the presence of target (16 s RNA), the HCR is triggered and dsDNA complexes are generated. As a result, the fluorescence signal can be strongly amplified by the synergistic effect of FAM and the dsDNA dye SYBR Green I. Based on this mechanism, a fluorescence method is designed for the detection of 16S rRNA of S. aureus. Under the optimal conditions, it has low detection limit (50 pM) and a linear response in a concentration range of 50 pM to 100 nM for 16S rRNA. Furthermore, this method has also been successfully applied to the detection of S. aureus in milk sample with the detection limit of 4 × 102 CFU·mL-1.
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Affiliation(s)
- Jie Tang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Zefeng Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Jiaqi Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Qiujun Lu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Le Deng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China.
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Wei C, Ren P, Cen Q, Zhu Y, Zhang Y. Simultaneous determination of dissolved phenanthrene and its metabolites by derivative synchronous fluorescence spectrometry with double scans method in aqueous solution. Talanta 2019; 195:339-344. [PMID: 30625553 DOI: 10.1016/j.talanta.2018.11.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/15/2018] [Accepted: 11/22/2018] [Indexed: 12/30/2022]
Abstract
A simple and sensitive derivative synchronous fluorescence spectrometry with double scans (DS-DSFS) method was developed for simultaneous determination of dissolved Phenanthrene (Phe) and its metabolites 1-hydroxy-2-naphthoic acid (1H2NA) and salicylic acid (SA) in aqueous solution. The value of 69 nm was selected as the optimal Δλ conditions for Phe and 1H2NA, and the Δλ value of 55 nm was selected for SA. The overlapping fluorescence emission spectra of Phe, 1H2NA and SA were resolved by DS-DSFS. The signals detected at wavelength of 296 nm for Phe, 352 nm for 1H2NA and 307 nm for SA vary linearly when the concentrations in the range of 4.0-1.0 × 103 μg L-1, 4.0-1.2 × 103 μg L-1 and 4.0-8.0 × 102 μg L-1, respectively. The detection limits were 0.08, 0.07 and 0.88 μg L-1 for Phe, 1H2NA and SA, with the relatively standard deviations less than 5.0%. The established method was successfully applied in the determination of Phe and the metabolites during the biodegradation of dissolved Phe in the lab. It was evidenced that the method has potential for the in situ investigation of PAH biodegradation.
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Affiliation(s)
- Chaoxian Wei
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment & Ecology, Xiamen University, 361102 Xiamen, Fujian Province, PR China
| | - Pei Ren
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment & Ecology, Xiamen University, 361102 Xiamen, Fujian Province, PR China
| | - Qiulin Cen
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment & Ecology, Xiamen University, 361102 Xiamen, Fujian Province, PR China
| | - Yaxian Zhu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Yong Zhang
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment & Ecology, Xiamen University, 361102 Xiamen, Fujian Province, PR China.
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11
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El-ghobashy MR, Yehia AM, Helmy AH, Youssef NF. Forced degradation of gliquidone and development of validated stability-indicating HPLC and TLC methods. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000317223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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12
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Ayoub BM, Mowaka S, Arafa MG. Factorial design optimization of micelle enhanced synchronous spectrofluorimetric assay of Omarigliptin: Applied to content uniformity testing and in vitro drug release. LUMINESCENCE 2018; 33:797-805. [PMID: 29605965 DOI: 10.1002/bio.3479] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/09/2018] [Accepted: 02/13/2018] [Indexed: 11/09/2022]
Abstract
A micelle enhanced spectrofluorimetric method was developed for determination of Omarigliptin (OMG) based on its native fluorescence behavior. The interaction of OMG with surfactants and macromolecules was studied. In aqueous solution, the relative fluorescence intensity (RFI) of OMG was enhanced by 24% in the presence of Tween 80 at pH 3.5. The optimal conditions for the micelle enhanced fluorescence were attained by Minitab® program using Plackett-Burman factorial design. Pareto chart, contour plots and surface plots were used to exclude the insignificant variables and optimize the significant factors. The spectrofluorimeter was operated under synchronous mode using ∆λ = 30 nm and recording the RFI of the intense narrow band at 267 nm for OMG in 0.5% w/v Tween 80 + 0.2 M acetate buffer (pH 3.5) system using water as diluent. Using synchronous scan mode offered many advantages including considerable reduction of spectral overlap and enhanced linearity of the calibrators. Validation parameters were satisfied over the concentration range 0.1-2 μg/ml. The developed method was the first analytical procedure for OMG assay in Marizev® tablets. Moreover, content uniformity testing and in vitro drug release of tablets were performed.
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Affiliation(s)
- Bassam M Ayoub
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk city, Cairo, Egypt.,The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk city, Cairo, Egypt
| | - Shereen Mowaka
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk city, Cairo, Egypt.,The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk city, Cairo, Egypt.,Analytical Chemistry Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, Egypt
| | - Mona G Arafa
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk city, Cairo, Egypt.,Pharmaceutics Department, Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk city, Cairo, Egypt.,Chemotheraputic Unit, Mansoura University Hospitals, Mansoura, Egypt
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