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Mrštná K, Matoušová K, Matouš P, Matysová L, Švec F, Šnejdrová E, Krčmová LK. Analysis of terbinafine in PLGA-based drug delivery systems by a fast and sensitive UHPLC-DAD method. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:2823-2832. [PMID: 37191172 DOI: 10.1039/d3ay00506b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A novel ultra-high performance chromatography method with multichannel detection that allows fast, sensitive, and robust analysis of an antifungal drug terbinafine and its three main impurities β-terbinafine, (Z)-terbinafine, and 4-methylterbinafine in just 5.0 min has been developed. Analysis of terbinafine is important in pharmaceutical analysis since it enables the detection of its impurities at very low concentrations. In this study, we focused on the development, optimization, and validation of the UHPLC method as well as its subsequent application in the evaluation of terbinafine and its three main impurities in the dissolution medium to reveal the incorporation of terbinafine in two poly(lactic-co-glycolic acid) (PLGA) carriers and testing of the drug release at pH 5.5. PLGA based drug delivery systems such as solid dispersions, thin films, microparticles, and nanoparticles are new favorable ways of terbinafine administration. PLGA features excellent tissue compatibility, biodegradation, and adjustable drug release profile. Our pre-formulation study indicates that poly(acrylic acid) branched PLGA polyester has more suitable properties than tripentaerythritol branched PLGA polyester. Therefore, the former is likely to enable design of a new drug delivery system for topically applied terbinafine that could facilitate its administration and increase patient compliance.
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Affiliation(s)
- Kristýna Mrštná
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 50005 Hradec Králové, Czech Republic.
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Králové, Czech Republic
| | - Petr Matouš
- The Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Ludmila Matysová
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 50005 Hradec Králové, Czech Republic.
| | - František Švec
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 50005 Hradec Králové, Czech Republic.
| | - Eva Šnejdrová
- The Department of Pharmaceutical Technology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 50005 Hradec Králové, Czech Republic
| | - Lenka Kujovská Krčmová
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 50005 Hradec Králové, Czech Republic.
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Králové, Czech Republic
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Rapid back flushed direct sample injection bio-analytical HPLC-UV method for therapeutic drug monitoring of terbinafine. Anal Biochem 2022; 659:114951. [PMID: 36244510 DOI: 10.1016/j.ab.2022.114951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/02/2022] [Accepted: 10/06/2022] [Indexed: 12/14/2022]
Abstract
A rapid back flushed (BF) direct sample injection (DSI) high-performance liquid chromatography (HPLC) with UV detection (BF-DSI-HPLC-UV) has been developed to determine terbinafine (TERB) in human serum. For online solid phase extraction step, an isocratic mobile phase of phosphate buffer saline (pH 7.4) at 1 mL/min and a short protein-coated ODS column (PC-ODS-column) were used for the purification and enrichment of TERB. Two different chromatographic modes of PC-ODS-column were simultaneously operated. Macromolecular proteins were extracted by size-exclusion liquid chromatography, while TERB trapping and enrichment were achieved through reversed-phase liquid chromatography. The clear fraction containing TERB was transferred from the PC-ODS-column by BF mode onto the quantification step through a high pressure switching valve. An analytical mobile phase consisting of 80% methanol and 1% triethylamine in distilled deionized water (pH) 6 at 1 mL/min was used for the final separation on an ODS analytical column. TERB was quantified and detected by UV-detector at 224 nm. The proposed method showed high correlation coefficient (>0.999) over the concentrations range 4-1600 ng/mL with recoveries ranging from 98.48 to 93.86%. Measurement of TERB concentration in serum after administration of a single dose of 250 mg oral tablet was used to evaluate the applicability of the BF-DSI-HPLC-UV for pharmacokinetic study.
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Tian Q, Quan P, Fang L, Xu H, Liu C. A molecular mechanism investigation of the transdermal/topical absorption classification system on the basis of drug skin permeation and skin retention. Int J Pharm 2021; 608:121082. [PMID: 34506925 DOI: 10.1016/j.ijpharm.2021.121082] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 08/27/2021] [Accepted: 09/05/2021] [Indexed: 01/02/2023]
Abstract
A transdermal/topical absorption classification system for the characterization of the systemic or local delivery of drugs is the theoretical basis for the design and evaluation of transdermal/topical formulations. A classification system was established on the basis of the in vitro and in vivo skin permeation/retention behaviors of 12 model drugs. Drug skin penetration/retention exhibited a significant correlation with physicochemical parameters (log KO/W, molecular weight, polar surface area, and polarizability). Four representative model drugs were selected to clarify the molecular mechanisms of drug skin permeation/retention behaviors. The excellent lipid-disrupting effect and enhanced partitioning exhibited by propranolol (high permeation-high retention) and zolmitriptan (high permeation-low retention) via the formation of moderate H-bonds with skin lipids were proven by ATR-FTIR (ΔνasCH2 > 2 cm-1), Raman spectra (ΔLPP, SPP > 0.2 nm), and X-ray scattering (lipid crystallization) and were supported by 13C NMR results. The low lipid miscibility of zolmitriptan (ΔHzolmitriptan-lipid = 126.92 J/g) caused the low skin retention of this drug. High polarizabiltiy (α = 38.5 × 10-24 cm3) and low H-bond forming capability (EH-bond = 0 kcal/mol) restricted terbinafine (low permeation-high retention) in terms of partitioning (kD-SC = 0.09). Diclofenac (low permeation-low retention) stabilized skin lipids through the formation of strong H-bonds and exhibited excessive drug-lipid miscibility (ΔHdiclofenac-skin = -128.73 J/g), thus restricting its skin absorption. This classification system reflects the most essential drug skin absorption characteristics and provides a theoretical basis for the design of transdermal/topical formulations.
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Affiliation(s)
- Qi Tian
- School of Pharmacy, Shenyang Pharmaceutical University, No. 26 Huatuo Road, High & New Technology Development Zone, Benxi 117004, China
| | - Peng Quan
- School of Pharmacy, Shenyang Pharmaceutical University, No. 26 Huatuo Road, High & New Technology Development Zone, Benxi 117004, China
| | - Liang Fang
- School of Pharmacy, Shenyang Pharmaceutical University, No. 26 Huatuo Road, High & New Technology Development Zone, Benxi 117004, China
| | - Hui Xu
- School of Pharmacy, Shenyang Pharmaceutical University, No. 26 Huatuo Road, High & New Technology Development Zone, Benxi 117004, China
| | - Chao Liu
- School of Pharmacy, Shenyang Pharmaceutical University, No. 26 Huatuo Road, High & New Technology Development Zone, Benxi 117004, China.
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Abdel-Lateef MA, Derayea SM, El-Deen DAMN, Almahri A, Oraby M. Investigating the interaction of terbinafine with xanthenes dye for its feasible determination applying the resonance Rayleigh scattering technique. ROYAL SOCIETY OPEN SCIENCE 2021; 8:201545. [PMID: 33614086 PMCID: PMC7890510 DOI: 10.1098/rsos.201545] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/02/2020] [Indexed: 05/21/2023]
Abstract
Terbinafine hydrochloride is a potent antifungal drug indicated for oral and topical treatment of mycoses. A resonance Rayleigh scattering (RRS) method was developed for the determination of terbinafine hydrochloride through a feasible complexation reaction with erythrosine B. In a weakly acidic medium (acetate buffer, pH 5.0), terbinafine hydrochloride can react with erythrosine B through the electrostatic attraction and virtue of hydrophobic force to form an ion-association complex. The reaction resulted in the appearance of a new RRS peak at 369 nm. The RRS peak was increased by increasing the concentration of terbinafine hydrochloride in the linear range of 0.1-1.5 µg ml-1. All the reaction conditions (erythrosine B concentration, buffer volume, diluting solvent and pH) were optimized. The detection limit was 0.029 µg ml-1 while the quantitation limit was 0.089 µg ml-1. The suggested method after its validation was successfully applied for the determination of terbinafine hydrochloride in different pharmaceutical formulations (tablets and cream) with sufficient recovery.
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Affiliation(s)
- Mohamed A. Abdel-Lateef
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Sayed M. Derayea
- Department of Analytical Chemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | | | - Albandary Almahri
- General Courses Unit, Faculty of Sciences and Arts, King Khalid University, Dhahran Aljanoub, Saudi Arabia
| | - Mohamed Oraby
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag 82524, Egypt
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Yıldırım S, Demirdaş G, Fidan M, Yaşar A. Simple and Fast Determination of Terbinafine in Human Urine by Dilute and Shoot HPLC-DAD Using a Core-Shell Column. Comb Chem High Throughput Screen 2020; 24:342-351. [PMID: 32646357 DOI: 10.2174/1386207323666200709171504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/12/2020] [Accepted: 04/21/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Terbinafine is an allylamine antifungal that is effective against many fungi, dermatophytes and moulds. Analytical methods are required for the determination of terbinafine in biological fluids to perform therapeutic drug monitoring and pharmacokinetic studies. OBJECTIVE The aim of this study was to develop and validate a novel and fast method combining dilute and shoot approach and high-performance liquid chromatography coupled with photodiode array detection for the determination of terbinafine in human urine. METHODS Chromatographic parameters including mobile phase composition, pH, flow rate and injection volume were assessed and optimized. The separation of terbinafine and naproxen (internal standard) was achieved within 3 min using a C18 core-shell column (Raptor ARC-18, 100 x 4.6 mm, 2.7 μm) under isocratic conditions. Samples were eluted from the column at the flow rate of 1.4 mL/min using a mobile phase containing 0.2% triethylamine in water (pH 3.4 with formic acid): acetonitrile (45:55, v/v). RESULTS The presented technique was linear in the range of 25-2000 ng/mL. Intra- and inter-day reproducibility at four quality control levels (25, 200, 750 and 1500 ng/mL) were less than 7%, with relative errors ranging from -5.40% to 5.91%. The limit of detection was 12.60 ng/mL. The developed method has three main advantages compared to existing methods: simplicity and greenness of sample preparation, use of core-shell column and short analysis time. CONCLUSION The results of this study indicate that the combination of dilute and shoot approach and core-shell column can be regarded as an advantageous application for the fast determination of terbinafine in the urine.
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Affiliation(s)
- Sercan Yıldırım
- Department of Analytical Chemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
| | - Gökhan Demirdaş
- Department of Analytical Chemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
| | - Mert Fidan
- Department of Analytical Chemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
| | - Ahmet Yaşar
- Department of Analytical Chemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
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Kryczyk-Poprawa A, Żmudzki P, Koczurkiewicz P, Pękala E, Hubicka U. Photostability of Terbinafine Under UVA Irradiation: The Effect of UV Absorbers. Photochem Photobiol 2019; 95:911-923. [PMID: 30580440 DOI: 10.1111/php.13075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 12/13/2018] [Indexed: 11/29/2022]
Abstract
The photostability of drugs administered topically on unprotected skin is a complex phenomenon that could be connected with the loss of activity or, rather rarely, the occurrence of toxic degradation products. In this study, an in-depth investigation of the photostability of terbinafine, in both solutions and formulations, was conducted, taking into account the presence of UV absorbers such as TiO2 , ZnO, avobenzone, 3-(4-methylbenzylidene)camphor, octocrylene, benzophenone-1 and benzophenone-2. The clear photocatalytic degradation of terbinafine in ethanol solution was observed in the presence of TiO2 and/or ZnO. In other cases, terbinafine was stable, with the exception of, in the presence of octocrylene. The presumed degradation products of terbinafine were identified for the first time using LC/MS/MS, and transformation pathways were proposed. In the case of a cream formulation, the percentage of initial terbinafine content was almost unchanged in the presence of the UV absorbers benzophenone-1, benzophenone-2 and 3-(4-methylbenzylidene)camphor. In vitro cytotoxicity risk assessment of terbinafine based on photostability under UVA irradiation was evaluated using the human skin fibroblast BJ (ATCC® CRL-2522™), and this showed no statistically significant difference in cell viability for all samples analyzed.
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Affiliation(s)
- Agata Kryczyk-Poprawa
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Paweł Żmudzki
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Paulina Koczurkiewicz
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Urszula Hubicka
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
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Kanakapura B, Penmatsa VK. Analytical methods for determination of terbinafine hydrochloride in pharmaceuticals and biological materials. J Pharm Anal 2016; 6:137-149. [PMID: 29403974 PMCID: PMC5762490 DOI: 10.1016/j.jpha.2016.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 01/17/2016] [Accepted: 01/25/2016] [Indexed: 11/22/2022] Open
Abstract
Terbinafine is a new powerful antifungal agent indicated for both oral and topical treatment of mycosessince. It is highly effective in the treatment of determatomycoses. The chemical and pharmaceutical analysis of the drug requires effective analytical methods for quality control and pharmacodynamic and pharmacokinetic studies. Ever since it was introduced as an effective antifungal agent, many methods have been developed and validated for its assay in pharmaceuticals and biological materials. This article reviews the various methods reported during the last 25 years.
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Affiliation(s)
- Basavaiah Kanakapura
- Department of Chemistry, University of Mysore, Manasagangotri, Mysore 570006, Karnataka, India
| | - Vamsi Krishna Penmatsa
- Department of Chemistry, University of Mysore, Manasagangotri, Mysore 570006, Karnataka, India
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Cox S, Hayes J, Hamill M, Martin A, Pistole N, Yarbrough J, Souza M. Determining Terbinafine in Plasma and Saline Using HPLC. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2014.922479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Sherry Cox
- a Department of Biomedical and Diagnostic Sciences , College of Veterinary Medicine, University of Tennessee , Knoxville , Tennessee , USA
| | - Joan Hayes
- a Department of Biomedical and Diagnostic Sciences , College of Veterinary Medicine, University of Tennessee , Knoxville , Tennessee , USA
| | - Mallery Hamill
- a Department of Biomedical and Diagnostic Sciences , College of Veterinary Medicine, University of Tennessee , Knoxville , Tennessee , USA
| | - Ali Martin
- a Department of Biomedical and Diagnostic Sciences , College of Veterinary Medicine, University of Tennessee , Knoxville , Tennessee , USA
| | - Nealy Pistole
- a Department of Biomedical and Diagnostic Sciences , College of Veterinary Medicine, University of Tennessee , Knoxville , Tennessee , USA
| | | | - Marcy Souza
- a Department of Biomedical and Diagnostic Sciences , College of Veterinary Medicine, University of Tennessee , Knoxville , Tennessee , USA
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Mielech-Łukasiewicz K, Dąbrowska A. Comparison of Boron-Doped Diamond and Glassy Carbon Electrodes for Determination of Terbinafine in Pharmaceuticals Using Differential Pulse and Square Wave Voltammetry. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.883518] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Miron D, Lange A, Zimmer AR, Mayorga P, Schapoval EES. HPLC-DAD for the determination of three different classes of antifungals: method characterization, statistical approach, and application to a permeation study. Biomed Chromatogr 2014; 28:1728-37. [PMID: 24788676 DOI: 10.1002/bmc.3213] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 01/17/2014] [Accepted: 03/15/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Diogo Miron
- Pharmaceutical Quality Control Laboratory, School of Pharmacy; Federal University of Rio Grande do Sul; 90610-000 Porto Alegre Brazil
| | - Alini Lange
- Pharmaceutical Quality Control Laboratory, School of Pharmacy; Federal University of Rio Grande do Sul; 90610-000 Porto Alegre Brazil
| | - Aline R. Zimmer
- Pharmaceutical Chemistry Laboratory, School of Pharmacy; Federal University of Rio Grande do Sul; 90610-000 Porto Alegre Brazil
| | - Paulo Mayorga
- Galenic Development Laboratory, School of Pharmacy; Federal University of Rio Grande do Sul; 90610-000 Porto Alegre Brazil
| | - Elfrides E. S. Schapoval
- Pharmaceutical Quality Control Laboratory, School of Pharmacy; Federal University of Rio Grande do Sul; 90610-000 Porto Alegre Brazil
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Quantification of terbinafine in pharmaceutical tablets using capillary electrophoresis with contactless conductivity detection and batch injection analysis with amperometric detection. Talanta 2012; 101:220-5. [DOI: 10.1016/j.talanta.2012.09.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 09/04/2012] [Accepted: 09/06/2012] [Indexed: 11/23/2022]
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Gurule S, Khuroo A, Monif T, Goswami D, Saha A. Rational design for variability minimization in bioanalytical method validation: illustration with LC-MS/MS assay method for terbinafine estimation in human plasma. Biomed Chromatogr 2010; 24:1168-78. [DOI: 10.1002/bmc.1423] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ahmad S, Jain GK, Faiyazuddin M, Iqbal Z, Talegaonkar S, Sultana Y, Ahmad FJ. Stability-indicating high-performance thin-layer chromatographic method for analysis of terbinafine in pharmaceutical formulations. ACTA CHROMATOGR 2009. [DOI: 10.1556/achrom.21.2009.4.9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wang C, Mao Y, Wang D, Yang G, Qu Q, Hu X. Voltammetric determination of terbinafine in biological fluid at glassy carbon electrode modified by cysteic acid/carbon nanotubes composite film. Bioelectrochemistry 2008; 72:107-15. [DOI: 10.1016/j.bioelechem.2007.11.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2007] [Revised: 11/28/2007] [Accepted: 11/28/2007] [Indexed: 11/25/2022]
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Dotsikas Y, Apostolou C, Kousoulos C, Tsatsou G, Loukas YL. An improved high-throughput liquid chromatographic/tandem mass spectrometric method for terbinafine quantification in human plasma, using automated liquid–liquid extraction based on 96-well format plates. Biomed Chromatogr 2007; 21:201-8. [PMID: 17221909 DOI: 10.1002/bmc.738] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A fully automated high-throughput liquid chromatography/tandem mass spectrometry (LC-MS/MS) method was developed for terbinafine quantification in human plasma. The plasma samples were treated by liquid-liquid extraction (LLE) in 2.2 mL 96-deepwell plates. Terbinafine and the internal standard (IS) N-methyl-1-naphthalenemethylamine were extracted from human plasma by LLE, using a mixture of methyl t-butyl ether (MTBE)-hexane (70:30, v/v) as the organic solvent. All liquid transfer steps, including preparation of calibration standards and quality control samples, as well as the addition of the IS, were performed automatically by using robotic liquid handling workstations. After vortexing, centrifugation and freezing, the supernatant organic solvent was evaporated and reconstituted in a small volume of a reconstitution solution. Sample analysis was performed by reversed-phase LC-MS/MS, with positive ion electrospray ionization, using multiple reaction monitoring (MRM). The method had a very short sample preparation time and a chromatographic run time of 2.2 min. It was proved to have excellent sensitivity, specificity, accuracy as well as inter- and intraday precision for the quantification of terbinafine in human plasma. The calibration curve was linear for the range of concentrations 5.0-2000.0 ng/mL. The proposed method was applied to the rapid and reliable determination of terbinafine in a bioequivalence study after per os administration of 250 mg tablet formulations of terbinafine.
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Affiliation(s)
- Yannis Dotsikas
- Laboratory of Pharmaceutical Analysis and Bioequivalence Services (GLP Compliant), Department of Pharmaceutical Chemistry, School of Pharmacy, University of Athens, Panepistimioupoli Zografou GR-157 71, Athens, Greece
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