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Li J, Xue Q, Chen T, Liu F, Wang Q, Chang C, Lu X, Zhou T, Niwa O. The influence mechanism of the molecular structure on the peak current and peak potential in electrochemical detection of typical quinolone antibiotics. Phys Chem Chem Phys 2021; 23:13873-13877. [PMID: 34110338 DOI: 10.1039/d1cp01358k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Antibiotic pollution in water has become an increasingly serious problem, posing a potentially huge threat to human health. Ofloxacin (OFL), norfloxacin (NOR), and enoxacin (ENX) are typical broad-spectrum quinolone antibiotics, which are frequently detected in various water environments. An electrochemical sensor is a rapid and effective tool to detect antibiotics in the aquatic environment. The molecular structure of target pollutants is an important factor affecting the detection performance of electrochemical sensors. Based on the electrochemical detection results of antibiotics (OFL, NOR, and ENX), we first used the molecular structure analysis method based on quantum chemistry to accurately identify the electronegativity and the electrocatalytic degree of the oxidizable (and non-oxidizable) functional groups of pollutants. We also clarified the influence mechanism of the molecular structure on the peak current and peak potential. These results can provide theoretical support for rapidly selecting electrodes with a suitable electrochemical window to efficiently detect trace organic pollutants (such as antibiotics) in water based on the molecular structure of the target pollutant.
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Affiliation(s)
- Jiawei Li
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, P. R. China. and Aerospace Seahawk Electromechanical Technology Research Institute Co., Ltd, 100074, Beijing, China and Beijing Jinghang Institute of Computing and Communication, 100074, China
| | - Qiang Xue
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, P. R. China. and Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, P. R. China
| | - Tao Chen
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, P. R. China. and Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, P. R. China
| | - Fei Liu
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, P. R. China. and Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, P. R. China
| | - Qun Wang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, P. R. China. and Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, P. R. China
| | - Chunwen Chang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, P. R. China. and Beijing Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, P. R. China
| | - Xiaohua Lu
- National Institute of Metrology, No. 18, Bei San Huan Dong Lu, 100022 Beijing, China
| | - Taogeng Zhou
- Beijing Institute of Technology, No. 5, South Zhongguancun Street, 100081 Beijing, China
| | - Osamu Niwa
- Saitama Institute of Technology, 1690, Fusaiji, Fukaya, Saitama 369-0293, Japan
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Yuan Y, Yuan X, Hang Q, Zheng R, Lin L, Zhao L, Xiong Z. Dummy molecularly imprinted membranes based on an eco-friendly synthesis approach for recognition and extraction of enrofloxacin and ciprofloxacin in egg samples. J Chromatogr A 2021; 1653:462411. [PMID: 34325296 DOI: 10.1016/j.chroma.2021.462411] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/30/2021] [Accepted: 07/09/2021] [Indexed: 12/29/2022]
Abstract
In this work, novel dummy molecularly imprinted membranes (MIMs) were fabricated using the nylon-66 (NY-66) membranes as the subtracts based on an eco-friendly "sandwich" technology with less consumption of organic reagents at mild conditions for recognition and extraction of enrofloxacin (ENR) and ciprofloxacin (CIP) in egg samples. The prepared MIMs were characterized by SEM, ATR-FTIR and TGA, showing the successful construction of uniform and porous polymers on the surface of membranes. A series of adsorption affinity tests were investigated, indicating the prepared materials had specific recognition capacity and excellent stability as novel sorbents. Furthermore, Box-Benhnken design (BBD) and single factor investigations were applied to optimize pretreatment procedures, coupling with Ultra High Performance Liquid Chromatograph (UHPLC) detection. The method showed a good correlation (r2>0.9999) within the linear range of 5.0~5000.0 µg kg-1, and limit of detection (LOD) of ENR and CIP were 0.3 and 0.7 µg kg-1, respectively. The mean recovery ranged from 84.5% to 97.0% within relative standard deviations (RSDs) of 10.2%. Finally, ENR and CIP were not detected in 3 batches of egg samples. The current study developed the dummy MIMs as sorbents combined with UHPLC analysis for extraction and detection of target analytes in food matrices.
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Affiliation(s)
- Yue Yuan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Xucan Yuan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Qian Hang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Runjiao Zheng
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Longyi Lin
- Faculty of life science and biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Longshan Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Zhili Xiong
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China.
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Zhang T, Li Y, Chen C, Liu X, Tian Y, Zeng S, He M. Rapid screening and quantification of multi-class antibiotic pollutants in water using a planar waveguide immunosensor. RSC Adv 2019; 9:38422-38429. [PMID: 35540241 PMCID: PMC9075870 DOI: 10.1039/c9ra06796e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 11/15/2019] [Indexed: 11/21/2022] Open
Abstract
Antibiotics are commonly used in livestock-related agriculture and aquaculture, but they also remain in water and potentially threaten human health. Immunosensors are attractive tools for the rapid detection of antibiotics in water due to their high sensitivity and low costs. However, the simultaneous detection of multi-class antibiotics remains a challenge due to the limited number of detection sites on the immunochip. Also, matrix effects hinder the practical application of these sensors. This paper presents a method for multi-class antibiotic detection in real water using a planar waveguide immunosensor (PWI). We integrate the screening and quantitive detection sites on the same immunochip, and a single screening detection site could detect multi-class antibiotics from the same family, increasing the detection types of analytes. In addition, to eliminate the matrix effects, we develop a testing buffer for real water detection, so that complex pretreatments of the samples can be omitted. Using our sensor and testing buffer, we detect 14 different antibiotics in real water. Lincomycin can be detected with a detection limit of 0.01 μg L−1, and 13 quinolones can be screened in a single assay. These results demonstrate that this planar waveguide immunosensor is capable of simultaneous screening and quantification of multi-class antibiotic pollutants and is expected to be applied for practical environmental monitoring. We present a method for simultaneous screening and quantitative detection of multi-class antibiotics in real water using planar waveguide immunosensors.![]()
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Affiliation(s)
- Tianmu Zhang
- Center for Sensor Technology of Environment and Health, Tsinghua University Beijing 100084 China .,State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University Beijing 100084 China
| | - Yijun Li
- Center for Sensor Technology of Environment and Health, Tsinghua University Beijing 100084 China .,State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University Beijing 100084 China
| | - Chunfei Chen
- Guangxi Environmental Monitoring Centre Nanning 530028 China
| | - Xiaoping Liu
- Guangxi Environmental Monitoring Centre Nanning 530028 China
| | - Yan Tian
- Guangxi Environmental Monitoring Centre Nanning 530028 China
| | - Siyu Zeng
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University Beijing 100084 China
| | - Miao He
- Center for Sensor Technology of Environment and Health, Tsinghua University Beijing 100084 China .,State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University Beijing 100084 China
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Liu T, Xue Q, Jia J, Liu F, Zou S, Tang R, Chen T, Li J, Qian Y. New insights into the effect of pH on the mechanism of ofloxacin electrochemical detection in aqueous solution. Phys Chem Chem Phys 2019; 21:16282-16287. [DOI: 10.1039/c9cp03486b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We first found that identifying the protonation status and polarity of the target pollutant helped to rapidly find an optimal pH condition for its electrochemical detection, which promoted practical application.
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Affiliation(s)
- Ting Liu
- Beijing Key Laboratory of Water Resources and Environmental Engineering
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing 100083
- P. R. China
| | - Qiang Xue
- Beijing Key Laboratory of Water Resources and Environmental Engineering
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing 100083
- P. R. China
| | - Jianbo Jia
- The State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Fei Liu
- Beijing Key Laboratory of Water Resources and Environmental Engineering
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing 100083
- P. R. China
| | - Shengzhang Zou
- Institute of Karst Geology
- Chinese Academy of Geological Sciences
- Guilin
- China
- Key Laboratory of Karst Dynamics of Ministry Land and Resources & Guangxi
| | - Renshi Tang
- School of Food and Chemical Engineering, Beijing Technology and Business University
- Beijing 100048
- China
| | - Tao Chen
- Beijing Key Laboratory of Water Resources and Environmental Engineering
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing 100083
- P. R. China
| | - Jiawei Li
- Beijing Key Laboratory of Water Resources and Environmental Engineering
- School of Water Resources and Environment
- China University of Geosciences (Beijing)
- Beijing 100083
- P. R. China
| | - Yumin Qian
- Materials Science and Engineering Program and Department of Mechanical Engineering
- The University of Texas at Austin
- Austin
- USA
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5
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El-Zahry MR, Lendl B. Structure elucidation and degradation kinetic study of Ofloxacin using surface enhanced Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 193:63-70. [PMID: 29223055 DOI: 10.1016/j.saa.2017.12.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/22/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
A simple, fast and sensitive surface enhanced Raman spectroscopy (SERS) method for quantitative determination of fluoroquinolone antibiotic Ofloxacin (OFX) is presented. Also the stability behavior of OFX was investigated by monitoring the SERS spectra of OFX after various degradation processes. Acidic, basic and oxidative force degradation processes were applied at different time intervals. The forced degradation conditions were conducted and followed using SERS method utilizing silver nanoparticles (Ag NPs) as a SERS substrate. The Ag NPs colloids were prepared by reduction of silver nitrate using polyethyelene glycol (PEG) as a reducing and stabilizing agent. Validation tests were done in accordance with International Conference on Harmonization (ICH) guidelines. The calibration curve with a correlation coefficient (R=0.9992) was constructed as a relationship between the concentration range of OFX (100-500ng/ml) and SERS intensity at 1394cm-1 band. LOD and LOQ values were calculated and found to be 23.5ng/ml and 72.6ng/ml, respectively. The developed method was applied successfully for quantitation of OFX in different pharmaceutical dosage forms. Kinetic parameters were calculated including rate constant of the degradation of the studied antibiotic.
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Affiliation(s)
- Marwa R El-Zahry
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt.
| | - Bernhard Lendl
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/151, A-1060 Vienna, Austria
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Abstract
Lomefloxacin is a second-generation difluorinated broad-spectrum quinolone antibiotic. It is used for the treatment of bronchitis, urinary tract infection, conjunctivitis, otitis externa, and otitis media. A comprehensive profile was performed on lomefloxacin including nomenclature, formulae, elemental composition appearance, and physical characteristics. Spectral methods including ultraviolet spectrum, vibrational spectrum, 1H and 13C nuclear magnetic resonance one- and two-dimensional spectra, and mass spectrum were used for both identification and analysis of the drug. The profile also contains the reported methods of analysis such as voltammetric, polarographic, spectrophotometric, fluorimetric, chromatographic, capillary electrophoresis, and immunoassay methods. In addition, the uses, pharmacokinetics, and chemical synthesis of lomefloxacin are described.
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Affiliation(s)
- Reem I Al-Wabli
- College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Chierentin L, Salgado HRN. Review of Properties and Analytical Methods for the Determination of Norfloxacin. Crit Rev Anal Chem 2016; 46:22-39. [PMID: 26398574 DOI: 10.1080/10408347.2014.941456] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The first-generation quinolones have their greatest potency against Gram-negative bacteria, but newly developed molecules have exhibited increased potency against Gram-positive bacteria, and existing agents are available with additional activity against anaerobic microorganisms. Norfloxacin is a broad-spectrum antimicrobial fluoroquinolone used against Gram-positive and Gram-negative organisms (aerobic organisms). There are different analytical methods available to determine norfloxacin applied in quality control of this medicine in order to ensure its effectiveness and safety. The authors present an overview of the fourth generation of quinolones, followed by the properties, applications, and analytical methods of norfloxacin. These results show several existing analytical techniques that are flexible and broad-based methods of analysis in different matrices. This article focuses on bionalytical and pharmaceutical quality-control applications, such as thin-layer chromatography, microbiological assay, spectrophotometry, capillary electrophoresis (CE), and high-performance liquid chromatography (HPLC).
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Affiliation(s)
- Lucas Chierentin
- a School of Pharmaceutical Sciences, São Paulo State University , Araraquara , São Paulo , Brazil
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8
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Paul P, Van Laeken C, Sänger-van de Griend C, Adams E, Van Schepdael A. CE-C 4 D method development and validation for the assay of ciprofloxacin. J Pharm Biomed Anal 2016; 129:1-8. [DOI: 10.1016/j.jpba.2016.06.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 06/09/2016] [Accepted: 06/19/2016] [Indexed: 11/25/2022]
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9
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Multiple response optimization of a liquid chromatographic method for determination of fluoroquinolone and nitroimidazole antimicrobials in serum and urine. Clin Biochem 2016; 49:587-95. [DOI: 10.1016/j.clinbiochem.2015.12.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/16/2015] [Accepted: 12/19/2015] [Indexed: 11/21/2022]
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10
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Lotfy HM, Saleh SS, Hassan NY, Salem H. Computation of geometric representation of novel spectrophotometric methods used for the analysis of minor components in pharmaceutical preparations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:628-643. [PMID: 26163786 DOI: 10.1016/j.saa.2015.06.103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/09/2015] [Accepted: 06/25/2015] [Indexed: 06/04/2023]
Abstract
Novel spectrophotometric methods were applied for the determination of the minor component tetryzoline HCl (TZH) in its ternary mixture with ofloxacin (OFX) and prednisolone acetate (PA) in the ratio of (1:5:7.5), and in its binary mixture with sodium cromoglicate (SCG) in the ratio of (1:80). The novel spectrophotometric methods determined the minor component (TZH) successfully in the two selected mixtures by computing the geometrical relationship of either standard addition or subtraction. The novel spectrophotometric methods are: geometrical amplitude modulation (GAM), geometrical induced amplitude modulation (GIAM), ratio H-point standard addition method (RHPSAM) and compensated area under the curve (CAUC). The proposed methods were successfully applied for the determination of the minor component TZH below its concentration range. The methods were validated as per ICH guidelines where accuracy, repeatability, inter-day precision and robustness were found to be within the acceptable limits. The results obtained from the proposed methods were statistically compared with official ones where no significant difference was observed. No difference was observed between the obtained results when compared to the reported HPLC method, which proved that the developed methods could be alternative to HPLC techniques in quality control laboratories.
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Affiliation(s)
- Hayam M Lotfy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini, 11562 Cairo, Egypt; Pharmaceutical Chemistry department, Faculty of Pharmaceutical sciences & Pharmaceutical industries, Future University in Egypt (FUE), 12311 Cairo, Egypt
| | - Sarah S Saleh
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787 6th October, Egypt.
| | - Nagiba Y Hassan
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini, 11562 Cairo, Egypt
| | - Hesham Salem
- Analytical Chemistry Department, Faculty of Pharmacy, Deraya University, Minia, Egypt
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Kaale E, Höllein L, Holzgrabe U. Development and validation of a generic stability-indicating MEEKC method for five fluoroquinolone antibiotics. Electrophoresis 2015; 36:2736-2744. [DOI: 10.1002/elps.201500025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 04/21/2015] [Accepted: 04/21/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Eliangiringa Kaale
- University of Würzburg; Institute of Pharmacy and Food Chemistry; Würzburg Germany
- School of Pharmacy; Muhimbili University of Health and Allied Sciences; Dar Es Salaam Tanzania
| | - Ludwig Höllein
- University of Würzburg; Institute of Pharmacy and Food Chemistry; Würzburg Germany
| | - Ulrike Holzgrabe
- University of Würzburg; Institute of Pharmacy and Food Chemistry; Würzburg Germany
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12
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Salem H, Lotfy HM, Hassan NY, El-Zeiny MB, Saleh SS. A comparative study of different aspects of manipulating ratio spectra applied for ternary mixtures: derivative spectrophotometry versus wavelet transform. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:1002-1010. [PMID: 25171050 DOI: 10.1016/j.saa.2014.07.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/21/2014] [Accepted: 07/28/2014] [Indexed: 06/03/2023]
Abstract
This work represents a comparative study of different aspects of manipulating ratio spectra, which are: double divisor ratio spectra derivative (DR-DD), area under curve of derivative ratio (DR-AUC) and its novel approach, namely area under the curve correction method (AUCCM) applied for overlapped spectra; successive derivative of ratio spectra (SDR) and continuous wavelet transform (CWT) methods. The proposed methods represent different aspects of manipulating ratio spectra of the ternary mixture of Ofloxacin (OFX), Prednisolone acetate (PA) and Tetryzoline HCl (TZH) combined in eye drops in the presence of benzalkonium chloride as a preservative. The proposed methods were checked using laboratory-prepared mixtures and were successfully applied for the analysis of pharmaceutical formulation containing the cited drugs. The proposed methods were validated according to the ICH guidelines. A comparative study was conducted between those methods regarding simplicity, limitation and sensitivity. The obtained results were statistically compared with those obtained from the reported HPLC method, showing no significant difference with respect to accuracy and precision.
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Affiliation(s)
- Hesham Salem
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787 6th October City, Egypt
| | - Hayam M Lotfy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, 11562 Cairo, Egypt
| | - Nagiba Y Hassan
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, 11562 Cairo, Egypt
| | - Mohamed B El-Zeiny
- Analytical Chemistry Department, Faculty of Pharmacy, Modern University for Technology and Information (MTI), 12582 Al Hadaba Al Wosta, Cairo, Egypt
| | - Sarah S Saleh
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787 6th October City, Egypt.
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Salem H, Hassan NY, Lotfy HM, Saleh SS. Column performance study of different variants of liquid chromatographic technique: an application on pharmaceutical ternary mixtures containing tetryzoline. J Chromatogr Sci 2014; 53:708-15. [PMID: 25217705 DOI: 10.1093/chromsci/bmu109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Indexed: 11/12/2022]
Abstract
High-performance liquid chromatography (HPLC), ultra-performance liquid chromatography (UPLC) and rapid resolution liquid chromatographic (RRLC) methods have been developed and validated for the separation and quantitation of both or either of two ternary mixtures present in ophthalmic solutions. The first mixture contains chloramphenicol, dexamethasone sodium phosphate and tetryzoline HCl (TZH); while the second one contains ofloxacin, prednisolone acetate and TZH. Both preparations contain benzalkonium chloride as a preservative. The columns used were a HPLC column (C18 5 µm particle size), a RRLC column (C18 2.6 µm particle size) and a UPLC column (C18 1.7 µm particle size). A comparative study was conducted to illustrate the effect of the change in column particle size and dimensions on the other chromatographic conditions, backpressure and the separation of both ternary mixtures. The methods were validated as per ICH guidelines where accuracy, repeatability, interday precision and robustness were found to be within the acceptable limits. The RRLC column provided shorter run time and better resolution than HPLC, while the UPLC column gave the shortest run time for all columns. The RRLC column resulted in minimum backpressure, so it could be used with any HPLC instrument, which makes the method more practical and economic. The results obtained from the proposed methods were statistically compared with official ones where no significant difference was observed.
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Affiliation(s)
- Hesham Salem
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 6th October City 11787, Egypt
| | - Nagiba Y Hassan
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, Cairo 11562, Egypt
| | - Hayam M Lotfy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, Cairo 11562, Egypt
| | - Sarah S Saleh
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 6th October City 11787, Egypt
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14
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Elgorashe REE, Idris AM, Abdelrahman MA, Saeed AEM. Facile assay method for norfloxacin and ciprofloxacin by sequential injection chromatography. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.2.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Elbashir AA, Dsugi NFA, Aboul-Enein HY. Supramolecular Study on the Interaction Between Ofloxacin and Methyl β-Cyclodextrin by Fluorescence Spectroscopy and its Analytical Application. J Fluoresc 2013; 24:355-61. [DOI: 10.1007/s10895-013-1300-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 09/11/2013] [Indexed: 11/28/2022]
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16
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Petritz OA, Guzman DSM, Wiebe VJ, Papich MG. Stability of three commonly compounded extemporaneous enrofloxacin suspensions for oral administration to exotic animals. J Am Vet Med Assoc 2013; 243:85-90. [PMID: 23786194 DOI: 10.2460/javma.243.1.85] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate the stability of 3 extemporaneous oral suspensions of enrofloxacin mixed with readily available flavoring vehicles when stored at room temperature (approx 22°C). DESIGN Evaluation study. SAMPLES 3 commonly compounded oral suspensions of enrofloxacin. PROCEDURES On day 0, commercially available enrofloxacin tablets were compounded with a mixture of distilled water and corn syrup (formulation A) or cherry syrup (formulation B) flavoring vehicles to create suspensions with a nominal enrofloxacin concentration of 22.95 mg/mL, and 2.27% enrofloxacin injectable solution was compounded with a liquid sweetener (formulation C) to create a suspension with a nominal enrofloxacin concentration of 11.35 mg/mL. Preparations were stored in amber-colored vials at room temperature for 56 days. For each preparation, the enrofloxacin concentration was evaluated with high-performance liquid chromatography at prespecified intervals during the study. The pH, odor, and consistency for all suspensions were recorded at the start and completion of the study. RESULTS Relative to the nominal enrofloxacin concentration, the enrofloxacin concentration strength ranged from 95.80% to 100.69% for formulation A, 108.44% to 111.06% for formulation B, and 100.99% to 103.28% for formulation C. A mild pH increase was detected in all 3 suspensions during the study. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that, when stored in amber-colored vials at room temperature for 56 days, the enrofloxacin concentration strength in all 3 formulations was retained within acceptance criteria of 90% to 110%. Subjectively, cherry syrup flavoring was better at masking the smell and taste of enrofloxacin than were the other mixing vehicles.
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Affiliation(s)
- Olivia A Petritz
- Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA
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Zhang F, Gu S, Ding Y, Li L, Liu X. Simultaneous determination of ofloxacin and gatifloxacin on cysteic acid modified electrode in the presence of sodium dodecyl benzene sulfonate. Bioelectrochemistry 2013; 89:42-9. [DOI: 10.1016/j.bioelechem.2012.08.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 08/27/2012] [Accepted: 08/28/2012] [Indexed: 11/29/2022]
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18
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Zhou L, Reen FJ, O’Gara F, McSweeney CM, Clarke SL, Glennon JD, Luong JH, McGlacken GP. Analysis of pseudomonas quinolone signal and other bacterial signalling molecules using capillaries coated with highly charged polyelectrolyte monolayers and boron doped diamond electrode. J Chromatogr A 2012; 1251:169-175. [DOI: 10.1016/j.chroma.2012.06.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 06/18/2012] [Accepted: 06/19/2012] [Indexed: 01/30/2023]
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19
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Burana-Osot J, Saowakul K, Charoensilpchai C, Surapeepong N, Pongsiriwan W, Kumsum A. STABILITY-INDICATING HPLC METHOD FOR DETERMINATION OF OFLOXACIN IN BULK DRUG AND TABLETS USING TRIFLUOROACETATE AS COUNTER ANIONS. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.627610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jankana Burana-Osot
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Silpakorn University , Nakorn-pathom , Thailand
| | - Kamonchanok Saowakul
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Silpakorn University , Nakorn-pathom , Thailand
| | - Chak Charoensilpchai
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Silpakorn University , Nakorn-pathom , Thailand
| | - Nattawat Surapeepong
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Silpakorn University , Nakorn-pathom , Thailand
| | - Wisut Pongsiriwan
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Silpakorn University , Nakorn-pathom , Thailand
| | - Anchalee Kumsum
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Silpakorn University , Nakorn-pathom , Thailand
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20
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Esrafili A, Yamini Y, Ghambarian M, Shariati S, Moradi M. MEASUREMENT OF FLUOROQUINOLONE ANTIBIOTICS FROM HUMAN PLASMA USING HOLLOW FIBER LIQUID-PHASE MICROEXTRACTION BASED ON CARRIER MEDIATED TRANSPORT. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.601488] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Ali Esrafili
- a Department of Chemistry , Tarbiat Modares University , Tehran , Iran
| | - Yadollah Yamini
- a Department of Chemistry , Tarbiat Modares University , Tehran , Iran
| | - Mahnaz Ghambarian
- a Department of Chemistry , Tarbiat Modares University , Tehran , Iran
| | - Shahab Shariati
- b Department of Chemistry, Faculty of Sciences , Islamic Azad University , Rasht Branch , Rasht , Iran
| | - Morteza Moradi
- a Department of Chemistry , Tarbiat Modares University , Tehran , Iran
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21
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Yu X, Jiang Z, Wang Q, Guo Y. Silver nanoparticle-based chemiluminescence enhancement for the determination of norfloxacin. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0401-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Liu YM, Mei L, Yue HY, Shi YM, Liu LJ. Highly Sensitive Chemiluminescence Detection of Norfloxacin and Ciprofloxacin in CE and Its Applications. Chromatographia 2010. [DOI: 10.1365/s10337-010-1648-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Collado-Sánchez MA, Rambla-Alegre M, Carda-Broch S, Esteve-Romero J. SIMULTANEOUS SEPARATION AND DETERMINATION OF QUINOLONES IN PHARMACEUTICALS BY MICELLAR LIQUID CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2010. [DOI: 10.1080/10826070903574519] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Maria Rambla-Alegre
- a [Agrave]rea de Química Analítica, QFA, Universitat Jaume I , Castelló, Spain
| | - Samuel Carda-Broch
- a [Agrave]rea de Química Analítica, QFA, Universitat Jaume I , Castelló, Spain
| | - Josep Esteve-Romero
- a [Agrave]rea de Química Analítica, QFA, Universitat Jaume I , Castelló, Spain
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24
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YAN H, LI T, GUO Y. Separation of Aminobenzoic Acids by Gold Nanoparticle- modified Capillary Electrophoresis. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.200990125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Ulu ST. Highly sensitive spectrofluorimetric determination of lomefloxacin in spiked human plasma, urine and pharmaceutical preparations. Eur J Med Chem 2009; 44:3402-5. [PMID: 19359067 DOI: 10.1016/j.ejmech.2009.02.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2007] [Revised: 02/05/2009] [Accepted: 02/12/2009] [Indexed: 10/21/2022]
Abstract
A sensitive, simple and selective spectrofluorimetric method was developed for the determination of lomefloxacin in biological fluids and pharmaceutical preparations. The method is based on the reaction between the drug and 4-chloro-7-nitrobenzodioxazole in borate buffer of pH 8.5 to yield a highly fluorescent derivative that is measured at 533 nm after excitation at 433 nm. The calibration curves were linear over the concentration ranges of 12.5-625, 15-1500 and 20-2000 ng/mL for plasma, urine and standard solution, respectively. The limits of detection were 4.0 ng/mL in plasma, 5.0 ng/mL in urine and 7.0 ng/mL in standard solution. The intra-assay accuracy and precision in plasma ranged from 0.032 to 2.40% and 0.23 to 0.36%, respectively, while inter-assay accuracy and precision ranged from 0.45 to 2.10% and 0.25 to 0.38%, respectively. The intra-assay accuracy and precision estimated on spiked samples in urine ranged from 1.27 to 4.20% and 0.12 to 0.24%, respectively, while inter-assay accuracy and precision ranged from 1.60 to 4.00% and 0.14 to 0.25%, respectively. The mean recovery of lomefloxacin from plasma and urine was 98.34 and 98.43%, respectively. The method was successfully applied to the determination of lomefloxacin in pharmaceuticals and biological fluids.
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Affiliation(s)
- Sevgi Tatar Ulu
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Istanbul 34452, Turkey.
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26
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Ulu ST. Spectrofluorimetric determination of fluoroquinolones in pharmaceutical preparations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:138-43. [PMID: 18977686 DOI: 10.1016/j.saa.2008.08.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 02/22/2008] [Accepted: 08/20/2008] [Indexed: 05/23/2023]
Abstract
Simple, rapid and highly sensitive spectrofluorimetric method is presented for the determination of four fluoroquinolone (FQ) drugs, ciprofloxacin, enoxacin, norfloxacin and moxifloxacin in pharmaceutical preparations. Proposed method is based on the derivatization of FQ with 4-chloro-7-nitrobenzofurazan (NBD-Cl) in borate buffer of pH 9.0 to yield a yellow product. The optimum experimental conditions have been studied carefully. Beer's law is obeyed over the concentration range of 23.5-500 ng mL(-1) for ciprofloxacin, 28.5-700 ng mL(-1) for enoxacin, 29.5-800 ng mL(-1) for norfloxacin and 33.5-1000 ng mL(-1) for moxifloxacin using NBD-Cl reagent, respectively. The detection limits were found to be 7.0 ng mL(-1) for ciprofloxacin, 8.5 ng mL(-1) for enoxacin, 9.2 ng mL(-1) for norfloxacin and 9.98 ng mL(-1) for moxifloxacin, respectively. Intra-day and inter-day relative standard deviation and relative mean error values at three different concentrations were determined. The low relative standard deviation values indicate good precision and high recovery values indicate accuracy of the proposed methods. The method is highly sensitive and specific. The results obtained are in good agreement with those obtained by the official and reference method. The results presented in this report show that the applied spectrofluorimetric method is acceptable for the determination of the four FQ in the pharmaceutical preparations. Common excipients used as additives in pharmaceutical preparations do not interfere with the proposed method.
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Affiliation(s)
- Sevgi Tatar Ulu
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Beyazit, Istanbul, Turkey.
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27
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Cathodic electrochemiluminescence behavior of norfloxacin/peroxydisulfate system in purely aqueous solution. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.06.067] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Elbashir AA, Saad B, Mohamed Ali AS, Saleh MI, Aboul-Enein HY. Development and Validation of a Capillary Zone Electrophoresis Method for the Determination of Ofloxacin in Tablets. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070802388367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Bahruddin Saad
- a School of Chemical Sciences, Universiti Sains Malaysia , Penang, Malaysia
| | | | - Muhd. Idiris Saleh
- a School of Chemical Sciences, Universiti Sains Malaysia , Penang, Malaysia
| | - Hassan Y. Aboul-Enein
- b Pharmaceutical and Medicinal Chemistry Department , National Research Centre , Cairo, Egypt
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29
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Hwang S, Kim D, Chung S, Shim C. Delivery of ofloxacin to the lung and alveolar macrophages via hyaluronan microspheres for the treatment of tuberculosis. J Control Release 2008; 129:100-6. [DOI: 10.1016/j.jconrel.2008.04.009] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 04/14/2008] [Accepted: 04/15/2008] [Indexed: 12/21/2022]
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30
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Validation of a Reversed-Phase High-Performance Liquid Chromatography Method With Fluorescence Detection for the Bioequivalence Study of Norfloxacin in Plasma Samples. Ther Drug Monit 2008; 30:341-6. [DOI: 10.1097/ftd.0b013e3181671609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Kostarnoi AV, Golubitskii GB, Basova EM, Budko EV, Ivanov VM. High-performance liquid chromatography in the analysis of multicomponent pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2008. [DOI: 10.1134/s1061934808060026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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32
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Elbashir AA, Saad B, Salhin Mohamed Ali A, Al‐Azzam KMM, Aboul‐Enein HY. Validated Stability Indicating Assay of Gemifloxacin and Lomefloxacin in Tablet Formulations by Capillary Electrophoresis. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070802039481] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Abdalla A. Elbashir
- a School of Chemical Sciences , Universiti Sains Malaysia , Penang, Malaysia
| | - Bahruddin Saad
- a School of Chemical Sciences , Universiti Sains Malaysia , Penang, Malaysia
| | | | | | - Hassan Y. Aboul‐Enein
- c Pharmaceutical and Medicinal Chemistry Department , National Research Center , Dokki, Cairo, Egypt
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33
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Kumar A, Kumar Malik A, Kumar Tewary D, Singh B. Gradient HPLC of antibiotics in urine, ground water, chicken muscle, hospital wastewater, and pharmaceutical samples using C-18 and RP-amide columns. J Sep Sci 2008; 31:294-300. [DOI: 10.1002/jssc.200700373] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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34
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Elbashir AA, Saad B, Mohamed Ali AS, Saleh MI, Aboul‐Enein HY. Determination of Ofloxacin Enantiomers in Pharmaceutical Formulations by Capillary Electrophoresis. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070701780631] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Abdalla A. Elbashir
- a School of Chemical Sciences , Universiti Sains Malaysia , Penang, Malaysia
| | - Bahruddin Saad
- a School of Chemical Sciences , Universiti Sains Malaysia , Penang, Malaysia
| | | | | | - Hassan Y. Aboul‐Enein
- b Pharmaceutical and Medicinal Chemistry Department , National Research Centre , Dokki, Cairo, Egypt
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35
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Abdel Ghani NT, El-Ries MA, El-Shall MA. Validated polarographic methods for the determination of certain antibacterial drugs. ANAL SCI 2007; 23:1053-8. [PMID: 17878577 DOI: 10.2116/analsci.23.1053] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two simple, precise, inexpensive and sensitive voltammetric methods for the determination of lomefloxacin (LFX), sparfloxacin hydrochloride (SFX), gatifloxacin (GFX), and moxifloxacin (MFX) were developed. The present methods were first used to explore the adsorption behavior of the four investigated antibacterial agents at a hanging mercury dropping electrode (HMDE), by a direct method and secondly by a modification via their complexation with PdCl(2). For the direct method, drugs were accumulated on HMDE, and a well-defined reduction peak was obtained in Britton-Robinson buffer of pH 7 for LFX and SFX, and pH 6 for GFX and MFX. The adsorptive stripping response was evaluated as a function of some variables such as the scan rate, pH, accumulation time and potential. For the modified method, the adsorptive behavior of Pd(II)-4-quinolone complexes at the HMDE developed a strippining voltammetry peak at a more negative potential than that of the free Pd(II) ions (-1.05 V). The limits of detection (LOD) were 2 x 10(-8) M, while the limits of quantification (LOQ) were 6 x 10(-8) M for the investigated drugs. The methods were applied to the determination of LFX, SFX, GFX, and MFX in biological samples and pharmaceutical preparations, and also compared with the official reference methods. Complete validation of the proposed methods was also done.
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Affiliation(s)
- N T Abdel Ghani
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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36
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Alnajjar A, Idris AM, AbuSeada HH. Development of a stability-indicating capillary electrophoresis method for norfloxacin and its inactive decarboxylated degradant. Microchem J 2007. [DOI: 10.1016/j.microc.2007.05.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Aksoy B, Küçükgüzel İ, Rollas S. Development and Validation of a Stability-Indicating HPLC Method for Determination of Ciprofloxacin Hydrochloride and its Related Compounds in Film-Coated Tablets. Chromatographia 2007. [DOI: 10.1365/s10337-007-0287-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Cañada-Cañada F, Espinosa-Mansilla A, Muñoz de la Peña A. Separation of fifteen quinolones by high performance liquid chromatography: Application to pharmaceuticals and ofloxacin determination in urine. J Sep Sci 2007; 30:1242-9. [PMID: 17623463 DOI: 10.1002/jssc.200600536] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A simple chromatographic method is described for assaying 15 quinolones and fluoroquinolones (pipemidic acid, marbofloxacin, enoxacin, ofloxacin, norfloxacin, ciprofloxacin, danofloxacin, lomefloxacin, enrofloxacin, sarafloxacin, difloxacin, oxolinic acid, nalidixic acid, flumequine and piromidic acid), in urine and pharmaceutical samples. The determination was achieved by LC using an RP C18 analytical column. A mobile phase composed of mixtures of methanol-ACN-10 mM citrate buffer at pH 3.5 and 10 mM citrate buffer at pH 4.5, delivered under an optimum gradient program, at a flow rate of 1.5 mL/min, allows to accomplish the chromatographic separation in 26 min. For detection, diode-array UV-Vis at 280 nm and fluorescence detection set at excitation wavelength/emission wavelength: 280/450, 280/ 495, 280/405 and 320/360 nm were used. Detection and quantification limits were between 0.3-18 and 0.8-61 ng/mL, respectively. The method was validated in terms of interday (n = 6) and intraday (n = 6) precision and accuracy. The procedure was successfully applied to the analysis of human and veterinary pharmaceuticals. Also, ofloxacin was determined in human urine samples belonging to a patient undergoing treatment with this active principle, among others.
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39
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Zhao SJ, Li C, Jiang HY, Li BY, Shen JZ. Simultaneous Determination of 7 Quinolones Residues in Animal Muscle Tissues by High Performance Liquid Chromatography. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2007. [DOI: 10.1016/s1872-2040(07)60056-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Faria AF, de Souza MVN, de Almeida MV, de Oliveira MAL. Simultaneous separation of five fluoroquinolone antibiotics by capillary zone electrophoresis. Anal Chim Acta 2006; 579:185-92. [PMID: 17723742 DOI: 10.1016/j.aca.2006.07.037] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Revised: 07/14/2006] [Accepted: 07/14/2006] [Indexed: 11/24/2022]
Abstract
A novel methodology has been developed for simultaneous separation of ciprofloxacin (CPFLX), gatifloxacin (GTFLX), levofloxacin (LVFLX), moxifloxacin (MFLX) and sparfloxacin (SPFLX) fluoroquinolone antibiotics (FQs), using capillary zone electrophoresis (CZE) with UV detection at 282 nm. Electrolyte composition was optimized through the variation of the Tris/hydrochloride and sodium tetraborate buffer mixture. The electrolyte consisted of a 25 mmol L(-1) Tris/hydrochloride and 15 mmol L(-1) sodium tetraborate buffer mixture resulting in pH 8.87. All analytes were separated in less than 3 min. The proposed method was applied to the separation of FQs in pharmaceutical formulations, and the assay results were within 95-105% of the label claim.
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Affiliation(s)
- Adriana F Faria
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Cidade Universitária, CEP 36036-330 Juiz de Fora, MG, Brazil
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