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Sobolewska E, Biesaga M. High-Performance Liquid Chromatography Methods for Determining the Purity of Drugs with Weak UV Chromophores - A Review. Crit Rev Anal Chem 2024:1-15. [PMID: 38180794 DOI: 10.1080/10408347.2023.2291815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
High-performance liquid chromatography (HPLC) is one of the most useful techniques for the separation and determination of new drugs with a complex nature. The selection of an HPLC detector depends on the chemical nature of molecules, potential impurities, matrix of the sample, sensitivity, availability, and/or cost of the detector. HPLC methods with UV/Vis detectors are the most used and simple analytical procedures in pharmaceutical applications, but it is limited to compounds that possess a chromophore. Hence, this review provides an overview on the development of analytical methods for compounds with weak chromophores. The review described selected papers about HPLC based methods in the PubMed, Scopus, Semantic Scholar and ScienceDirect databases, basically between 2006 and 2023. Of the analytical studies, the HPLC methods with UV-Vis, FLD, CAD, ELSD, RID, ECD, CLND and MS detection were found. This study is a comparison of different types of detection that are described in scientific literature and are routinely used for compounds with weak chromophores. It is expected that this review will be helpful for scientists in the analytical development fields to improve research related to the drug candidates and to ensure its quality according to regulatory levels.
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Affiliation(s)
- Elżbieta Sobolewska
- Faculty of Chemistry, University of Warsaw, Warsaw, Poland
- Molecure SA, Warsaw, Poland
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Salem H, Omar MA, Mazen DZ, Nour El-Deen DAM. Simultaneous Determination of Ceftazidime in Three Different Pharmaceutical Preparations Combined with Either Tazobactam, Tobramycin or Sulbactam by HPTLC-Spectrodensitometric Method. J Chromatogr Sci 2023; 62:35-43. [PMID: 37083048 DOI: 10.1093/chromsci/bmad031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 12/30/2022] [Accepted: 03/16/2023] [Indexed: 04/22/2023]
Abstract
A new, simple hight performance thin layer chromatography (HPTLC)-Spectrodensitometric strategy was created and approved for the synchronous estimation of four antibacterial specialists: ceftazidime (CEF), tazobactam (TAZ), tobramycin (TOB) and sulbactam (SUL). The four compounds were separated on TLC aluminum plates covered with silica gel 60 F254, using chloroform-acetonitrile-methanol-ammonia (4:1:0.5:0.15, v/v/v/v) as a mobile phase at 254 nm. Linear correlation was obeyed over the concentration ranges of 12.0-72.0, 2.0-12.0, 3.0-18.0 and 10.0-50.0 μg mL-1 for CEF, TAZ, TOB and SUL, respectively. The proposed approach is efficient, repeatable and convenient as a flexible method for the quality control of diverse combinations of these pharmaceuticals in various pharmaceutical preparations, with high percent recoveries that are highly consistent with labeled data. When the findings of the proposed technique were compared to those of the comparison methods, there were no critical contrasts in terms of precision and accuracy.
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Affiliation(s)
- Hesham Salem
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia 61511, Egypt
| | - Mahmoud A Omar
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Medinah 41477, Saudi Arabia
| | - Dina Z Mazen
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia 61511, Egypt
| | - Deena A M Nour El-Deen
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
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Abdel Hamid M, Habib A, Mabrouk M, Hammad S, Elshahawy M. Dual fluorescence-colorimetric sensor based on silver nanoparticles for determination of tobramycin in its pharmaceutical preparations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123172. [PMID: 37494813 DOI: 10.1016/j.saa.2023.123172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/28/2023]
Abstract
The purpose of this study is to develop a dual fluorescence-colorimetric sensor for determination of the non-chromophoric drug, tobramycin using fluorescein-modified silver nanoparticles. Fluorescein is adsorbed on the surface of silver nanoparticles resulting in quenching of the fluorescence intensity of fluorescein at 513 nm. Upon addition of tobramycin to fluorescein-bound silver nanoparticles, tobramycin can displace fluorescein from the surface of nanoparticles resulting in nanoparticles aggregation and liberation of free fluorescein restoring its fluorescence. The interaction of tobramycin with fluorescein-bound silver nanoparticles is manifested by a decrease in the surface plasmon resonance band of silver nanoparticles at 395 nm, an increase in the fluorescence intensity of fluorescein at 513 nm and color change of the colloidal solution from yellow to light pink. These spectral effects are directly proportional to the concentration of tobramycin with a linearity range of 0.10 - 0.45 μg mL-1 and 0.05 - 0.45 μg mL-1 for the spectrophotometric and spectrofluorimetric methods, respectively. The proposed methods were applied for determination of tobramycin in Tobrin® ophthalmic solution with mean %recovery ± standard deviation of 99.036 ± 1.737 for the spectrophotometric method and 101.192 ± 1.315 for the spectrofluorimetric method. The optical sensor is simple, rapid, and cost-effective and can be used for determination of tobramycin in bulk and in its pharmaceutical preparations.
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Affiliation(s)
- Mohamed Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Ahmed Habib
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Mokhtar Mabrouk
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sherin Hammad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Mahmoud Elshahawy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
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Chantipmanee N, Hauser PC. Determination of tobramycin in eye drops with an open-source hardware ion mobility spectrometer. Anal Bioanal Chem 2022; 414:4059-4066. [PMID: 35381854 PMCID: PMC9124657 DOI: 10.1007/s00216-022-04050-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 11/28/2022]
Abstract
The analysis of tobramycin was demonstrated successfully as an example for electrospray ionization on an open-source hardware ion mobility spectrometer. This instrument was assembled inexpensively in-house, and required only very few purpose-made components. The quantitative determination of tobramycin required 20 s for a reading. The calibration curve for the range from 50 to 200 μM was found to be linear with a correlation coefficient of r = 0.9994. A good reproducibility was obtained (3% relative standard deviation) and the limit of detection was determined as 8 μM. As the concentration of the active ingredient in the eye drops (ophthalmic solutions) is too high for the sensitivity of the instrument, the samples had to be diluted appropriately.
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Affiliation(s)
- Nattapong Chantipmanee
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056, Basel, Switzerland
| | - Peter C Hauser
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056, Basel, Switzerland.
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Rapid determination of multiple aminoglycoside antibiotics in veterinary formulations by ion-pair chromatography coupled with evaporative light scattering detection. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106843] [Citation(s) in RCA: 1] [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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da Silva Medeiros T, Pinto EC, Cabral LM, de Sousa VP. Tobramycin: A review of detectors used in analytical approaches for drug substance, its impurities and in pharmaceutical formulation. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105658] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wei M, Chen X, Yi L, Yuan Y, Zhang H, Fu C, Yu L. Detecting kinsenoside from Anoectochilus roxburghii by HPLC-ELSD with dual columns of NH 2 and AQ-C 18. PHYTOCHEMICAL ANALYSIS : PCA 2020; 31:700-710. [PMID: 32216118 DOI: 10.1002/pca.2933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 02/11/2020] [Accepted: 03/07/2020] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Kinsenoside is a characteristic component of Anoectochilus roxburghii and accounts for this herb's medicinal and edible values. No international certified standard method is available for kinsenoside analysis as well as extraction and preservation. OBJECTIVE To develop a more accurate analytical method of kinsenoside. The effects of extraction and drying methods of A. roxburghii on kinsenoside efficiency were investigated for the first time, as well as to examine the kinsenoside stability. MATERIAL AND METHODS The amino (NH2 ) and AQ-C18 columns for detecting kinsenoside extract was systematically compared by high-performance liquid chromatography evaporative light-scattering detector (HPLC-ELSD) and HPLC-diode-array detector (DAD), respectively. Kinsenoside, its epimer goodyeroside A and the degradation product during preservation were identified through HPLC-electrospray ionization mass spectrometry (ESI-MS). RESULTS An accurate method of kinsenoside detection by HPLC-ELSD with dual columns of NH2 and AQ-C18 was established. The ratio of Cgoodyeroside A to Ckinsenoside (Y) was determined using the AQ-C18 column method. The concentration detected by the NH2 column was multiplied by 1/(1 + Y) as the corrected result. Using this novel method, the average deviations were reduced by 7.64%. Moreover, the efficiency of kinsenoside extraction with water was almost twice that of extraction with ethanol. Freeze drying also led to a higher extraction efficiency (38.47% increase) than hot-air drying did. Furthermore, the degradation of kinsenoside extract exceeded 70% when stored at 37 °C for 3 months. CONCLUSION This study provides a reliable experimental method and theoretical basis for the quality control of kinsenoside from A. roxburghii, as well as other glycosides.
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Affiliation(s)
- Mi Wei
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory for Quality Control of Characteristic Fruits and Vegetables of Hubei Province, College of Life Science and Technology, Hubei Engineering University, Xiaogan, 432000, China
| | - Xuemin Chen
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Liwen Yi
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan, 430074, China
| | - Yuanyuan Yuan
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan, 430074, China
| | - Hua Zhang
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan, 430074, China
| | - Chunhua Fu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan, 430074, China
| | - Longjiang Yu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan, 430074, China
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A colorimetric nanoprobe based on dynamic aggregation of SDS-capped silver nanoparticles for tobramycin determination in exhaled breath condensate. Mikrochim Acta 2020; 187:186. [DOI: 10.1007/s00604-020-4162-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/13/2020] [Indexed: 02/07/2023]
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Mukhtar NH, Mamat NA, See HH. Monitoring of tobramycin in human plasma via mixed matrix membrane extraction prior to capillary electrophoresis with contactless conductivity detection. J Pharm Biomed Anal 2018; 158:184-188. [DOI: 10.1016/j.jpba.2018.05.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/26/2018] [Accepted: 05/29/2018] [Indexed: 11/27/2022]
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Liu Q, Li J, Song X, Zhang M, Li E, Gao F, He L. Simultaneous determination of aminoglycoside antibiotics in feeds using high performance liquid chromatography with evaporative light scattering detection. RSC Adv 2017. [DOI: 10.1039/c6ra26581b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A HPLC-ELSD method was developed for the simultaneous detection of ten aminoglycoside antibiotics.
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Affiliation(s)
- Qingying Liu
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Jiufeng Li
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation
- China
| | - Xuqin Song
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Meiyu Zhang
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
| | - Erfen Li
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation
- China
| | - Fuming Gao
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation
- China
| | - Limin He
- National Reference Laboratory of Veterinary Drug Residues (SCAU)
- College of Veterinary Medicine
- South China Agricultural University
- Guangzhou
- China
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Patel SG, Bummer PM. Development of a Robust Method for Simultaneous Quantification of Polymer (HPMC) and Surfactant (Dodecyl β-D-Maltoside) in Nanosuspensions. AAPS PharmSciTech 2016; 17:1182-91. [PMID: 26634749 DOI: 10.1208/s12249-015-0451-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 11/09/2015] [Indexed: 11/30/2022] Open
Abstract
This report describes the development of a chromatographic method for the simultaneous quantification of a polymer, hydroxypropyl methylcellulose (HPMC), and a surfactant, dodecyl β-D-maltoside (DM), that are commonly used in the physical stabilization of pharmaceutical formulations such as nanosuspensions and solid dispersions. These excipients are often challenging to quantify due to the lack of chromophores. A reverse phase size exclusion chromatography (SEC) with evaporative light scattering detector (ELSD) technique was utilized to develop an accurate and robust assay for the simultaneous quantification of HPMC and DM in a nanosuspension formulation. The statistical design of experiments was used to determine the influence of critical ELSD variables including temperature, pressure, and gain on accuracy, precision, and sensitivity of the assay. A robust design space was identified where it was determined that an increase in the temperature of the drift tube and gain of the instrument increased the accuracy and precision of the assay and a decrease in the nebulizer pressure value increased the sensitivity of the assay. In the optimized design space, response data showed that the assay could quantify HPMC and DM simultaneously with good accuracy, precision, and reproducibility. Overall, SEC-ELSD proved to be a powerful technique for the simultaneous quantification of HPMC and DM. This technique can be used to quantify the amount of HPMC and DM in nanosuspensions, which is critical to understanding their effects on the physical stability of nanosuspensions.
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Long Z, Guo Z, Liu X, Zhang Q, Liu X, Jin Y, Liang L, Li H, Wei J, Wu N. A sensitive non-derivatization method for apramycin and impurities analysis using hydrophilic interaction liquid chromatography and charged aerosol detection. Talanta 2016; 146:423-9. [DOI: 10.1016/j.talanta.2015.09.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 08/28/2015] [Accepted: 09/06/2015] [Indexed: 11/29/2022]
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Pfeifer C, Fassauer G, Gerecke H, Jira T, Remane Y, Frontini R, Byrne J, Reinhardt R. Purity determination of amphotericin B, colistin sulfate and tobramycin sulfate in a hydrophilic suspension by HPLC. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 990:7-14. [DOI: 10.1016/j.jchromb.2015.02.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 02/25/2015] [Accepted: 02/27/2015] [Indexed: 10/23/2022]
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Mokh S, Jaber F, Kouzayha A, Budzinski H, Al Iskandarani M. Optimization and Comparisons for Separation, Detection and Quantification of 12 Aminoglycosides Using 2 Chromatographic Conditions by LC-MS/MS. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ajac.2014.514105] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ruckmani K, Shaikh SZ, Khalil P, Muneera MS. A simple and rapid high-performance liquid chromatographic method for determining tobramycin in pharmaceutical formulations by direct UV detection. Pharm Methods 2013; 2:117-23. [PMID: 23781441 PMCID: PMC3658043 DOI: 10.4103/2229-4708.84455] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Tobramycin, an aminoglycoside antibiotic, is a polar pharmaceutical compound which lacks a UV absorbing chromophore. Due to the absence of a UV absorbing chromophore and high polar nature of this antibiotic, the analysis of such compounds becomes a major challenge. Objective: To overcome these problems, a novel method for the determination aminoglycoside tobramycin was developed and validated based on reversed-phase high-performance liquid chromatography (RP-HPLC) with UV detector. Materials and Methods: An isocratic mobile phase consists of buffer 0.05 M diammonium hydrogen phosphate, pH adjusted to 10.0 using tetramethyl ammonium hydroxide. Chromatography was carried out at 25°C on a Purosphere RP-8e, 250 mm × 4.6 mm, 5mm. The detection was carried out using variable wavelength UV-Vis detector set at 210 nm. The compounds were eluted isocratically at a steady flow rate of 1.0 mL/min. Result and Discussion: Tobramycin retention time was about 9.0 min with an asymmetry factor of 1.4. A logarithmic calibration curve was obtained from 0.47 to 0.71 mg/mL (r > 0.9998). Within-day %RSD was 0.29 (n = 6, 0.60 mg/mL) and between-day %RSD was 0.54 Specificity/ selectivity experiments revealed the absence of interference from excipients, recovery from spiked samples was between 99.0–100.0 percent. Conclusions: A HPLC method based on UV detection has been developed and validated for determination of tobramycin from ophthalmic solution. The method is simple, rapid, specific, accurate (error 0.80%), precise (RSD <2.0%) and linear (r2=0.9998). The described method is suitable for routine analysis and quality control of ophthalmic solution containing tobramycin.
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Affiliation(s)
- K Ruckmani
- Department of Pharmaceutical Technology, Anna University of Technology, Thiruchirappalli, Trichy, Tamilnadu, India
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El-Zaher AA, Mahrouse MA. Utility of Experimental Design in Pre-Column Derivatization for the Analysis of Tobramycin by HPLC-Fluorescence Detection: Application to Ophthalmic Solution and Human Plasma. ANALYTICAL CHEMISTRY INSIGHTS 2013; 8:9-20. [PMID: 23700362 PMCID: PMC3653852 DOI: 10.4137/aci.s11612] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A novel, selective, and sensitive reversed phase high-performance liquid chromatography (HPLC) method coupled with fluorescence detection has been developed for the determination of tobramycin (TOB) in pure form, in ophthalmic solution and in spiked human plasma. Since TOB lacks UV absorbing chromophores and native fluorescence, pre-column derivatization of TOB was carried out using fluorescamine reagent (0.01%, 1.5 mL) and borate buffer (pH 8.5, 2 mL). Experimental design was applied for optimization of the derivatization step. The resulting highly fluorescent stable derivative was chromatographed on C18 column and eluted using methanol:water (60:40, v/v) at a flow rate of 1 mL min−1. A fluorescence detector (λex 390 and λem 480 nm) was used. The method was linear over the concentration range 20–200 ng mL−1. The structure of the fluorescent product was proposed, the method was then validated and applied for the determination of TOB in human plasma. The results were statistically compared with the reference method, revealing no significant difference.
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Affiliation(s)
- Asmaa A El-Zaher
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo, Egypt
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Manyanga V, Elkady E, Hoogmartens J, Adams E. Improved reversed phase liquid chromatographic method with pulsed electrochemical detection for tobramycin in bulk and pharmaceutical formulation. J Pharm Anal 2013; 3:161-167. [PMID: 29403811 PMCID: PMC5760981 DOI: 10.1016/j.jpha.2012.12.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 12/27/2012] [Indexed: 11/24/2022] Open
Abstract
Tobramycin is one of the aminoglycoside antibiotics that lack a UV absorbing chromophore. However, the application of pulsed electrochemical detection (PED) has been used successfully for the analysis of this and similar antibiotics. This work describes an improved liquid chromatographic (LC) method combined with PED, which is able to separate much more impurities than before. Using a Discovery C-18 RP column (250 mm×4.6 mm i.d., 5 μm), isocratic elution was carried out with a mobile phase, containing sodium sulfate (35 g/L), sodium octanesulphonic acid (1 g/L), tetrahydrofuran (14 mL/L) and 0.2 M phosphate buffer pH 3.0 (50 mL/L). Using these experimental conditions, the limit of quantification (LOQ, S/N=10) was 5 ng. The linearity was examined in the range LOQ-60 μg/mL and the coefficient of determination was 0.998. The method also proved to be repeatable and the recovery was close to 100%. The influence of the different chromatographic parameters on the separation was investigated by means of an experimental design. The proposed method is useful in quality control of tobramycin drug substances and drug products.
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Affiliation(s)
- Vicky Manyanga
- Laboratory for Pharmaceutical Analysis, Faculteit Farmaceutische Wetenschappen, KU Leuven, O&N2, PB 923, Herestraat 49, B-3000 Leuven, Belgium
| | - Ehab Elkady
- Laboratory for Pharmaceutical Analysis, Faculteit Farmaceutische Wetenschappen, KU Leuven, O&N2, PB 923, Herestraat 49, B-3000 Leuven, Belgium
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo 11562, Egypt
| | - Jos Hoogmartens
- Laboratory for Pharmaceutical Analysis, Faculteit Farmaceutische Wetenschappen, KU Leuven, O&N2, PB 923, Herestraat 49, B-3000 Leuven, Belgium
| | - Erwin Adams
- Laboratory for Pharmaceutical Analysis, Faculteit Farmaceutische Wetenschappen, KU Leuven, O&N2, PB 923, Herestraat 49, B-3000 Leuven, Belgium
- Corresponding author. Tel.: +3216323444; fax: +3216323448.
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Restuccia D, Spizzirri UG, Puoci F, Cirillo G, Vinci G, Picci N. Determination of Phospholipids in Food Samples. FOOD REVIEWS INTERNATIONAL 2012. [DOI: 10.1080/87559129.2011.563398] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Optimization of capillary electrophoresis method with contactless conductivity detection for the analysis of tobramycin and its related substances. J Pharm Biomed Anal 2012; 58:49-57. [DOI: 10.1016/j.jpba.2011.09.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 09/27/2011] [Accepted: 09/29/2011] [Indexed: 11/19/2022]
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Abstract
The aim of this study was to determine the optimal experimental conditions to develop a methodology for microbiological assay of apramycin employing microplate and kinetic reading mode, and to validate the developed method, through evaluation of parameters of selectivity, linearity, linear range, limits of detection and quantification, accuracy and precision. The turbidimetric assay principle is simple: the test solution is added to a suspension of test microorganism in culture media, the mixture is incubated under appropriate conditions and the microbial growth is measured by photometric reading. Microplate with kinetic reading mode employed in antibiotic assay is of considerable interest since it allows reduction of material and analysis time and enables a large number of samples to be analyzed simultaneously, with automated reading and calculating. Established conditions considered the standard-curve of apramycin at concentrations from 5.0 to 35.0 μg mL-1, and tryptic soy broth inoculated with 5% Escherichia coli (ATCC 8739) suspension. Satisfactory results were obtained with 2 hours of incubation. The developed method showed appropriate selectivity, linearity in the range from 5.0 to 35.0 μg mL-1, limits of detection and quantification of 0.1 and 0.4 μg mL-1, respectively, as well as satisfactory accuracy (recuperation = 98.5%) and precision (RSD = 6.0%). Microplate assay combined the characteristics of microbiological (evaluation of antibiotic activity against sensitive test microorganism) and physico-chemical (operationally straightforward and faster results) assays.
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Determination of tobramycin in soil by HPLC with ultrasonic-assisted extraction and solid-phase extraction. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:901-7. [DOI: 10.1016/j.jchromb.2011.02.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 02/23/2011] [Accepted: 02/24/2011] [Indexed: 11/20/2022]
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Impedimetric aptasensor for tobramycin detection in human serum. Biosens Bioelectron 2010; 26:2354-60. [PMID: 21051217 DOI: 10.1016/j.bios.2010.10.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 09/15/2010] [Accepted: 10/06/2010] [Indexed: 11/24/2022]
Abstract
An RNA aptamer is proposed as a recognition element for the detection of tobramycin in human serum. A displacement assay was developed using faradaic-electrochemical impedance spectroscopy (F-EIS) as a detection technique. Two modified aptamers, a partially (ATA) and a fully O-methylated aptamer (FATA) were evaluated and compared. The affinity constant, K(D), for both aptamers was estimated by F-EIS resulting virtually identical within the experimental error. The selectivity towards other aminoglycosides was also studied. The analytical characteristics were evaluated in aqueous solution using both aptamers and FATA was selected for human serum experiments. Using a 1:0.5 dilution of the serum, a linear range between 3 μM and 72.1 μM was obtained, which included the therapeutic range of the antibiotic.
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24
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Comparative study on the analytical performance of different detectors for the liquid chromatographic analysis of tobramycin. J Pharm Biomed Anal 2010; 53:151-7. [DOI: 10.1016/j.jpba.2010.02.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Revised: 02/22/2010] [Accepted: 02/23/2010] [Indexed: 11/20/2022]
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25
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Development of a non-derivatization high-performance liquid chromatography method with resonance Rayleigh scattering detection for the detection of sisomicin in rat serum. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:4022-6. [DOI: 10.1016/j.jchromb.2009.10.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 10/07/2009] [Accepted: 10/13/2009] [Indexed: 11/23/2022]
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26
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Clarot I, Storme-Paris I, Chaminade P, Estevenon O, Nicolas A, Rieutord A. Simultaneous quantitation of tobramycin and colistin sulphate by HPLC with evaporative light scattering detection. J Pharm Biomed Anal 2009; 50:64-7. [DOI: 10.1016/j.jpba.2009.03.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2008] [Revised: 03/12/2009] [Accepted: 03/14/2009] [Indexed: 11/26/2022]
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27
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Li B, Van Schepdael A, Hoogmartens J, Adams E. Characterization of impurities in tobramycin by liquid chromatography-mass spectrometry. J Chromatogr A 2009; 1216:3941-5. [PMID: 19321172 DOI: 10.1016/j.chroma.2009.03.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2008] [Revised: 02/27/2009] [Accepted: 03/06/2009] [Indexed: 10/21/2022]
Abstract
The characterization of unknown impurities present in tobramycin by liquid chromatography (LC) coupled with mass spectrometry (MS) is described. A reversed-phase (RP)-LC method using a volatile mobile phase containing a perfluorinated ion-pair reagent was developed and coupled with an ion trap mass spectrometer. The structures of the unknown impurities were deduced by comparison of their fragmentation patterns with those of the available reference substances obtained by LC-MS(n) experiments.
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Affiliation(s)
- B Li
- Laboratorium voor Farmaceutische Analyse, Faculteit Farmaceutische Wetenschappen, Katholieke Universiteit Leuven, O&N2, PB 923, Herestraat 49, B-3000 Leuven, Belgium
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28
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Attema-de Jonge ME, Bekkers JM, Oudemans-van Straaten HM, Sparidans RW, Franssen EJ. Simple and sensitive method for quantification of low tobramycin concentrations in human plasma using HPLC–MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 862:257-62. [DOI: 10.1016/j.jchromb.2007.12.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Revised: 11/28/2007] [Accepted: 12/10/2007] [Indexed: 11/25/2022]
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29
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Pragst F. Chapter 13 High performance liquid chromatography in forensic toxicological analysis. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/s1567-7192(06)06013-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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30
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Polyketide analysis using mass spectrometry, evaporative light scattering, and charged aerosol detector systems. Anal Bioanal Chem 2007; 390:1189-93. [DOI: 10.1007/s00216-007-1774-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2007] [Revised: 11/14/2007] [Accepted: 11/20/2007] [Indexed: 10/22/2022]
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31
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Affiliation(s)
- R K Gilpin
- Brehm Research Laboratory, University Park, Wright State University, Fairborn, Ohio 45324-2031, USA
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32
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Nicolas A. [Control of the quality of antibiotics in the European Pharmacopoeia: recent development in the case of aminoglycosides]. ANNALES PHARMACEUTIQUES FRANÇAISES 2007; 65:174-82. [PMID: 17489073 DOI: 10.1016/s0003-4509(07)90033-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Aminoglycosides constitute a particular class of antibiotics presenting aminoglycoside moieties linked to a central aminocyclitol ring. Several aminoglycosides are described by a monograph in the European Pharmacopoeia. The related substances test is used to check for impurities. For this purpose, thin layer chromatography is now being replaced by high performance liquid chromatography. In the case of aminoglycosides the main challenge is the detection of these compounds since they do not possess a chromophore in their structure. Different possibilities are proposed in the monographs. Amikacine is detected at 340 nm after pre-column derivatization. In more recent monographs, pulsed amperometry detection is proposed. However, this mode of detection requires skillful manipulations. Evaporative light scattering detection could be a valuable alternative. The advantages and drawbacks of each approach will be discussed.
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Affiliation(s)
- A Nicolas
- Laboratoire de Chimie analytique et Bioanalyse du médicament, Umr Uhp-Cnrs 7561, Faculté de Pharmacie, Université Henri-Poincaré, BP 80403, F 54001 Nancy.
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Guo MX, Wrisley L, Maygoo E. Measurement of tobramycin by reversed-phase high-performance liquid chromatography with mass spectrometry detection. Anal Chim Acta 2006; 571:12-6. [PMID: 17723412 DOI: 10.1016/j.aca.2006.04.038] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2006] [Revised: 04/17/2006] [Accepted: 04/18/2006] [Indexed: 11/19/2022]
Abstract
Analysis of tobramycin faces challenges owing to its significant basicity, hydrophilicity and lack of a UV absorbing chromophore. Chromatographic methods, coupled with derivatization to introduce chromophores for tobramycin analysis, were extensively studied. A direct reversed-phase HPLC method for tobramycin analysis has not been reported. Here, we would like to report a simple LC/MS method for quantitative analysis of tobramycin in pharmaceutical formulations. Reversed-phase HPLC analysis of tobramycin was achieved using a pH stable C18 column with basic (pH 11) aqueous mobile phase (ammonium hydroxide buffer), while direct detection was carried out employing a single quadruple mass detector in negative mode via electrospray ionization. This unique separation-detection combination provided simple and specific determination of tobramycin. This method was found to be linear at a tobramycin concentration range of 0.2-0.8 mg/mL with a correlation coefficient value of 0.999. The quantitation limit and detection limit were calculated as 0.210 and 0.063 microg/mL, respectively, with 99.994% confidence. This method was successfully applied to measure tobramycin content in matrices containing tobramycin and other pharmaceutical formulation ingredients. Recoveries of 101.8, 97.8 and 106.7% were obtained for tobramycin spiked in the pharmaceutical formulation at concentrations of 1.68, 1.0 and 0.35 mg/mL, respectively. The relative standard deviations for six injections of spiked samples ranged from 0.2 to 3.2%, indicating good method repeatability.
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Affiliation(s)
- Michele Xuemei Guo
- Analytical and Quality Sciences, Wyeth Research, 401 N. Middletown Rd, Pearl River, NY 10965, USA.
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Law WS, Kubán P, Yuan LL, Zhao JH, Li SFY, Hauser PC. Determination of tobramycin in human serum by capillary electrophoresis with contactless conductivity detection. Electrophoresis 2006; 27:1932-8. [PMID: 16619300 DOI: 10.1002/elps.200500819] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A study on the determination of the antibiotic tobramycin by CE with capacitively coupled contactless conductivity detection is presented. This method enabled the direct quantification of the non-UV-absorbing species without incurring the disadvantages of the indirect approaches which would be needed for optical detection. The separation of tobramycin from inorganic cations present in serum samples was achieved by optimizing the composition of the acetic acid buffer. Field-amplified sample stacking was employed to enhance the sensitivity of the method and a detection limit of 50 microg/L (S/N = 3) was reached. The RSDs obtained for migration time and peak area using kanamycin B as internal standard were typically 0.12 and 4%, respectively. The newly developed method was validated by measuring the concentration of tobramycin in serum standards containing typical therapeutic concentrations of 2 and 10 mg/L. The recoveries were 96 and 97% for the two concentrations, respectively.
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Affiliation(s)
- Wai Siang Law
- Department of Chemistry, National University of Singapore, Republic of Singapore
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