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Maheshwari ML, Memon N, Memon AA, Khuhawer MY, Memon AH. Validated RP-HPLC Method Development for Gentamicin Microanalysis in Pharmaceutical Dosage Forms, Urine and Blood. Pharm Chem J 2021. [DOI: 10.1007/s11094-021-02451-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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2
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Zhang S, Geng Y, Ye N, Xiang Y. A simple and sensitive colorimetric sensor for determination of gentamicin in milk based on lysine functionalized gold nanoparticles. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105190] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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3
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Donegatti TA, Lobato A, Duek EAR, Moreira Gonçalves L, Alves Pereira E. Derivatization-free determination of aminoglycosides by CZE-UV in pharmaceutical formulations. Electrophoresis 2020; 41:1576-1583. [PMID: 32683725 DOI: 10.1002/elps.202000160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022]
Abstract
Aminoglycosides are a relevant class of antibiotics widely used by medics and veterinaries. There are a variety of reasons that make their determination relevant, such as quality control, environment and food contamination assessment, drug-release studies, among others. The lack of a chromophore makes aminoglycoside spectrophotometric detection particularly challenging, often requiring derivatization. In this work, an indirect detection method, making use of imidazole as a probe, applying CZE was successfully tested. It did not require derivatization, which simplified the sample preparation. Suitable figures of merit were obtained; recoveries between 95 and 105%, adequate repeatability and precision, correlation coefficients (r) above 0.998, and limits of detection (LODs) of 3.2 and 11 mg/L for gentamicin and paromomycin, respectively. As a proof-of-concept, it was also applied in a simple controlled release experiment that was well fitted using the Hill equation.
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Affiliation(s)
- Tiago Augusto Donegatti
- Departamento de Física, Química e Matemática, Universidade Federal de São Carlos - UFSCar, Sorocaba, São Paulo, Brazil
| | - Alnilan Lobato
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Eliana A R Duek
- Biomaterials Laboratory, Medical and Health Sciences Faculty, Pontifical University Catholic of São Paulo (PUC-SP), Sorocaba, São Paulo, Brazil
| | - Luís Moreira Gonçalves
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Elisabete Alves Pereira
- Departamento de Física, Química e Matemática, Universidade Federal de São Carlos - UFSCar, Sorocaba, São Paulo, Brazil
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4
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Celá A, Glatz Z. Homocyclic
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‐dicarboxaldehydes: Derivatization reagents for sensitive analysis of amino acids and related compounds by capillary and microchip electrophoresis. Electrophoresis 2020; 41:1851-1869. [DOI: 10.1002/elps.202000041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/27/2020] [Accepted: 06/07/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Andrea Celá
- Department of Biochemistry, Faculty of Science Masaryk University Brno Czech Republic
| | - Zdeněk Glatz
- Department of Biochemistry, Faculty of Science Masaryk University Brno Czech Republic
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5
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ul Ain N, Aslam Z, Yousuf M, Waseem WA, Bano S, Anis I, Ahmed F, Faizi S, Malik MI, Shah MR. Green synthesis of methyl gallate conjugated silver nanoparticles: a colorimetric probe for gentamicin. NEW J CHEM 2019. [DOI: 10.1039/c8nj04565h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient colorimetric sensor for gentamicin is proposed based on methyl gallate conjugated silver nanoparticles.
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Affiliation(s)
- Noor ul Ain
- Department of Chemistry
- University of Karachi
- Karachi 75270
- Pakistan
| | - Zara Aslam
- H.E.J. Research Institute of Chemistry
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi 75270
- Pakistan
| | - Muhammad Yousuf
- H.E.J. Research Institute of Chemistry
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi 75270
- Pakistan
| | | | - Samina Bano
- H.E.J. Research Institute of Chemistry
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi 75270
- Pakistan
| | - Itrat Anis
- Department of Chemistry
- University of Karachi
- Karachi 75270
- Pakistan
| | - Farid Ahmed
- Department of Chemistry
- Women University of Azad Jammu and Kashmir Bagh
- Pakistan
| | - Shaheen Faizi
- H.E.J. Research Institute of Chemistry
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi 75270
- Pakistan
| | - Muhammad Imran Malik
- H.E.J. Research Institute of Chemistry
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi 75270
- Pakistan
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi 75270
- Pakistan
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6
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Zhang C, Hu J, Sun F, Jia M, Chen G, Wu C, Zheng L. Determination of four main components of gentamicin in animal tissues after solid-phase extraction by high-performance liquid chromatography/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1766-1772. [PMID: 30019502 DOI: 10.1002/rcm.8234] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/16/2018] [Accepted: 07/09/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE An analytical method for gentamicin in animal tissues was developed and validated. An alkaline mobile phase with an HPH C8 column was selected so that all the four gentamicin components were retained and eluted without using fluorinated ion-pairing reagents. METHODS The method is sufficiently sensitive and highly selective, using a strong cation-exchange solid-phase extraction cartridge (PCX) to clean up the samples. Different types of solid-phase extraction columns and membranes were considered to obtain a high recovery. The method was validated on spiking samples, recovery, inter- and intra-assay variation, to ensure its accuracy and precision. RESULTS The LOQ (S/N ≥ 10) for gentamicin in goat meat, liver, kidney and adipose tissue was 25, 50, 30 and 30 ng/g, respectively; the LOD (S/N ≥ 3) was 5, 10, 10 and 10 ng/g, respectively. The recoveries were between 88% and 106%. The method in all animal tissues was calibrated from 10 to 1000 μg/L in the matrix-assisted standard solution. CONCLUSIONS The novelty of this method is that the commonly used fluorinated ion-pairing reagent was not used in the mobile phase in our analysis, greatly reducing the contamination of the ESI source in negative mode. Moreover, the four gentamicin components were clearly separated via chromatographic separation.
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Affiliation(s)
- Congcong Zhang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jian Hu
- Agriculture and Forest College of Science and Technology, Hebei North University, Zhangjiakou, 075000, China
- Agriculture & Animal Husbandry Bureau of Fengnan District, Tangshan, 063300, China
| | - Fengmei Sun
- Agriculture and Forest College of Science and Technology, Hebei North University, Zhangjiakou, 075000, China
| | - Man Jia
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Gang Chen
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Cuiling Wu
- Agilent Technologies Inc., Beijing, 100102, China
| | - Lufei Zheng
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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Li KW, Yen YK. Gentamicin drug monitoring for peritonitis patients by using a CMOS-BioMEMS-based microcantilever sensor. Biosens Bioelectron 2018; 130:420-426. [PMID: 30220446 DOI: 10.1016/j.bios.2018.09.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/23/2018] [Accepted: 09/03/2018] [Indexed: 11/24/2022]
Abstract
We developed a Complementary Metal-Oxide-Semiconductor Bio-Microelectromechanical Systems (CMOS-BioMEMS) based piezoresistive microcantilever sensor for detecting gentamicin, a peritonitis therapeutic small-molecule drug. In recent years, the patient-centric concept has been emphasized. In such a trend, therapeutic drug monitoring (TDM) is especially crucial for patients with peritonitis to avoid adverse reactions from a high concentration of gentamicin in the blood. With the aid of a commercialized semiconductor manufacturing process, the microcantilever sensing platform can serve as a portable, low-cost device and offer real-time detection. With chemical surface modification and capture antibody immobilization, the sensor can detect the small-molecule (< 2 kDa) gentamicin directly. We also modified the pH value of the buffer solution and applied an external electric field to promote sensor sensitivity. Comparing the change of the signals in a non-electric field of antibody immobilization and a 60-volt electric field of antibody immobilization showed that the average signal response increased 1.8 times. In the detection of gentamicin with different concentrations of 10-200 μg/mL, the limit of detection (LOD) of the sensor was 9.44 µg/mL. Finally, the detecting result of a microrcantilever sensor was compared with the one measured by a common instrument in hospital, and the high correlation was expressed between them in gentamicin detection. The CMOS-BioMEMS-based piezoresistive microcantilever sensor has been demonstrated to have great potential as a point-of-care (POC) device for real-time drug concentration monitoring.
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Affiliation(s)
- Kuan-Wei Li
- Institute of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan
| | - Yi-Kuang Yen
- Department of Mechanical Engineering, National Taipei University of Technology, Taipei 106, Taiwan.
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9
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Bijleveld Y, de Haan TR, Toersche J, Jorjani S, van der Lee J, Groenendaal F, Dijk P, van Heijst A, Gavilanes AWD, de Jonge R, Dijkman KP, van Straaten H, Rijken M, Zonnenberg I, Cools F, Nuytemans D, Mathôt R. A simple quantitative method analysing amikacin, gentamicin, and vancomycin levels in human newborn plasma using ion-pair liquid chromatography/tandem mass spectrometry and its applicability to a clinical study. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 951-952:110-118. [PMID: 24548921 DOI: 10.1016/j.jchromb.2014.01.035] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/16/2014] [Accepted: 01/22/2014] [Indexed: 01/11/2023]
Abstract
Neuroprotective controlled therapeutic hypothermia is the standard of care for newborns suffering perinatal asphyxia. Antibiotic drugs, such as amikacin, gentamicin, and vancomycin are frequently administered during controlled hypothermia, which possibly alters their pharmacokinetic (PK) and pharmacodynamic (PD) profiles. In order to examine this effect an LC-MS/MS method for the simultaneous quantification of amikacin, the major gentamicin components (gentamicin C, C1a and C2), and vancomycin in plasma was developed. In 25μL plasma proteins were precipitated with trichloroacetic acid (TCA) and detection of the components was achieved using ion-pair reversed phase chromatography coupled with electrospray ionization tandem mass spectrometry. The chromatographic runtime was 7.5min per sample. Calibration standards were prepared over a range of 0.3-50mgL(-1) for amikacin and gentamicin and 1.0-100mgL(-1) for vancomycin. At LLOQ accuracy was between 103 and 120% and imprecision was less than 19%. For concentrations above LLOQ accuracy ranged from 98% to 102% and imprecision was less than 6%. Process efficiency, ionization efficiency, and recovery were acceptable. Samples and stock solutions were stable during the time periods and at the different temperatures examined. The applicability of the method was shown by analysing plasma samples from 3 neonatal patients. The developed method allows accurate and precise simultaneous quantification of amikacin, gentamicin, and vancomycin in a small volume (25μL) of plasma.
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Affiliation(s)
- Yuma Bijleveld
- Department of Pharmacy, Academic Medical Centre, Amsterdam, The Netherlands.
| | - Timo R de Haan
- Department of Neonatology, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands
| | - Jan Toersche
- Department of Pharmacy, Academic Medical Centre, Amsterdam, The Netherlands
| | - Sona Jorjani
- Department of Pharmacy, Academic Medical Centre, Amsterdam, The Netherlands
| | - Johanna van der Lee
- Department of Paediatric Clinical Epidemiology, Emma Children's Hospital, Academic Medical Center, University of Amsterdam, The Netherlands
| | - Floris Groenendaal
- Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Peter Dijk
- Department of Neonatology, University Medical Center Groningen, Groningen, The Netherlands
| | - Arno van Heijst
- Department of Neonatology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Antonio W D Gavilanes
- Department of Neonatology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Rogier de Jonge
- Department of Neonatology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Koen P Dijkman
- Department of Neonatology, Maxima Medical Center Veldhoven, Veldhoven, The Netherlands
| | | | - Monique Rijken
- Department of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Inge Zonnenberg
- Department of Neonatology, VU University Medical Center, Amsterdam, The Netherlands
| | - Filip Cools
- Department of Neonatology, Vrije Universiteit Brussel, Brussels, Belgium
| | | | - Ron Mathôt
- Department of Pharmacy, Academic Medical Centre, Amsterdam, The Netherlands
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10
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Iranifam M, Hasanzadeh A, Fathinia M, Khataee AR, Mousavi SA. Flow-injection chemiluminescence determination of gentamicin: optimization by central composite design. LUMINESCENCE 2013; 29:230-8. [DOI: 10.1002/bio.2533] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Revised: 04/03/2013] [Accepted: 04/22/2013] [Indexed: 01/06/2023]
Affiliation(s)
- M Iranifam
- Department of Chemistry, Faculty of Science; University of Maragheh; Maragheh East Azerbaijan Iran
| | - A Hasanzadeh
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - M Fathinia
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - A R Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - S A Mousavi
- Sama Technical and Vocational Training College; Azad University, Mamaghan Branch; Mamaghan East Azerbaijan Iran
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11
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Abstract
Antibiotics are most commonly prescribed drugs in clinical practice. Therapeutic drug monitoring of these medications is typically associated with a select group of antibiotics such as aminoglycosides and vancomycin. Outside this group, other antibiotics such as chloramphenicol and antituberculosis agents may also require monitoring. Due to their wide therapeutic index, other classes of antibiotics such as penicillins, cephalosporin, sulfonamides, quinolones, and macrolides do not generally require routine therapeutic drug monitoring. Determination of serum or plasma concentration of these drugs, however, may be beneficial in those patients with compromised renal function. As can be expected, immunoassays for routine monitoring of aminoglycosides and vancomycin have been developed and are widely commercially available. Tests for other antibiotics, due to their infrequent use and low clinical application, are generally limited to in-house developed methods.
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12
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Santos LHMLM, Araújo AN, Reis B, Montenegro MCBSM. Development of a multicommutated flow system with chemiluminometric detection for quantification of gentamicin in pharmaceuticals. JOURNAL OF AUTOMATED METHODS & MANAGEMENT IN CHEMISTRY 2010; 2010:913207. [PMID: 20981343 PMCID: PMC2957854 DOI: 10.1155/2010/913207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Accepted: 09/02/2010] [Indexed: 05/30/2023]
Abstract
A new flow procedure based on multicommutation with chemiluminometric detection was developed to quantify gentamicin sulphate in pharmaceutical formulations. This approach is based on gentamicin's ability to inhibit the chemiluminometric reaction between luminol and hypochlorite in alkaline medium, causing a decrease in the analytical signal. The inhibition of the analytical signal is proportional to the concentration of gentamicin sulphate, within a linear range of 1 to 4 μg mL(-1) with a coefficient variation <3%. A sample throughput of 55 samples h(-1) was obtained. The developed method is sensitive, simple, with low reagent consumption, reproducible, and inexpensive, and when applied to the analysis of pharmaceutical formulations (eye drops and injections) it gave results with RSD between 1.10 and 4.40%.
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Affiliation(s)
- Lúcia H. M. L. M. Santos
- REQUIMTE, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua Anibal Cunha 164, 4050-047 Porto, Portugal
| | - A. N. Araújo
- REQUIMTE, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua Anibal Cunha 164, 4050-047 Porto, Portugal
| | - Boaventura Reis
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, P.O. Box 96, 13400-970 Piracicaba, Brazil
| | - M. C. B. S. M. Montenegro
- REQUIMTE, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua Anibal Cunha 164, 4050-047 Porto, Portugal
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Dzherayan TG, Bykov IV, Kostitsyna MV, Shipulo EV, Petrukhin OM, Dunaeva AA, Vladimirova EV. Study of a gentamicin-selective membrane polymer matrix by infrared spectroscopy. JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.1134/s1061934810070117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Kumar C, Himabindu M, Jetty A. Microbial Biosynthesis and Applications of Gentamicin: A Critical Appraisal. Crit Rev Biotechnol 2008; 28:173-212. [DOI: 10.1080/07388550802262197] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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15
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Kühn KD, Weber C, Kreis S, Holzgrabe U. Evaluation of the stability of gentamicin in different antibiotic carriers using a validated MEKC method. J Pharm Biomed Anal 2008; 48:612-8. [DOI: 10.1016/j.jpba.2008.05.041] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2008] [Revised: 05/29/2008] [Accepted: 05/30/2008] [Indexed: 12/01/2022]
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Lin YF, Wang YC, Chang SY. Capillary electrophoresis of aminoglycosides with argon-ion laser-induced fluorescence detection. J Chromatogr A 2008; 1188:331-3. [DOI: 10.1016/j.chroma.2008.01.088] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2007] [Revised: 01/18/2008] [Accepted: 01/24/2008] [Indexed: 10/22/2022]
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17
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Park JW, Hong JSJ, Parajuli N, Koh HS, Park SR, Lee MO, Lim SK, Yoon YJ. Analytical Profiling of Biosynthetic Intermediates Involved in the Gentamicin Pathway of Micromonospora echinospora by High-Performance Liquid Chromatography Using Electrospray Ionization Mass Spectrometric Detection. Anal Chem 2007; 79:4860-9. [PMID: 17521166 DOI: 10.1021/ac070028u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the present study, we developed a sensitive and highly selective method of detecting the biosynthetic intermediates involved in the gentamicin pathway from a cell culture of Micromonospora echinospora. A novel extraction method utilizing a dual solid-phase extraction (SPE) technique was employed to purify and recover all of the gentamicin-related components from the cell culture broth, and high-performance liquid chromatography (HPLC) coupled with electrospray ionization mass spectrometry (ESI-MS/MS) was used to analyze the extractant for gentamicin intermediates. The pH of the culture broth was adjusted to an acidic condition of pH 2 prior to the extraction. The samples were first cleaned with a reversed-phase AccuBOND C(18) cartridge, and then the aminoglycosidic components were purified using a cationic exchanger OASIS MCX cartridge. The detection limit of a gentamicin standard spiked in blank medium processed by this method was found to be approximately 5 ng for each component of the gentamicin C complex, and the mean recovery for each component of standard gentamicin was above 91% when analyzed by HPLC-ESI-MS/MS. We further demonstrated that this method enables the analytical profiling of the gentamicin-related compounds produced by wild-type M. echinospora ATCC 15835, which mainly produces the gentamicin C complex, and the UV-induced mutant strain KCTC 10506BP, which produces gentamicin B as the major product. Seven intermediates (paromamine, gentamicin A2, B, X2, A, JI-20A, and JI-20B) besides the gentamicin C complex were detected in the culture broth of both M. echinospora strains when analyzed by MS/MS for the distinct fragmentation patterns of each gentamicin component. This report displays the first example of the HPLC profiling in a wide range of structurally related biosynthetic intermediates involved in the gentamicin pathway.
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Affiliation(s)
- Je Won Park
- Center for Intelligent Nano-Bio Materials, Division of Nano Sciences and Department of Chemistry, Ewha Womans University, Seoul 120-750, Korea
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18
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Curiel H, Vanderaerden W, Velez H, Hoogmartens J, Van Schepdael A. Analysis of underivatized gentamicin by capillary electrophoresis with UV detection. J Pharm Biomed Anal 2007; 44:49-56. [PMID: 17314024 DOI: 10.1016/j.jpba.2007.01.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Revised: 01/15/2007] [Accepted: 01/17/2007] [Indexed: 11/26/2022]
Abstract
A selective and rapid capillary zone electrophoresis method for determination of the multicomponent aminoglycoside antibiotic gentamicin is described. Baseline separation of gentamicin C1, C1a, C2, C2a and C2b components was achieved with a background electrolyte containing 0.35 mM cetyl trimethylammonium bromide, 3% methanol and 90 mM sodium pyrophosphate (pH 7.4) and detected directly with UV detection without derivatization. Quantitative analysis was performed and illustrated the potential use of capillary electrophoresis for the identification and quantitation of gentamicin components, but the application of this method is limited to a gentamicin concentration range of 2-6 mg/ml.
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Affiliation(s)
- Harold Curiel
- Centro de Química Farmacéutica, Calle 200 y 21, Atabey, Playa, P.O. Box 16042, Habana, Cuba
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19
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Serrano JM, Silva M. Trace analysis of aminoglycoside antibiotics in bovine milk by MEKC with LIF detection. Electrophoresis 2006; 27:4703-10. [PMID: 17080474 DOI: 10.1002/elps.200600184] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This work describes a straightforward and sensitive method for the multi-residue analysis of aminoglycoside antibiotics (kanamycin B, amikacin, neomycin B and paromomycin I) in bovine milk samples. The method involves the pre-capillary derivatization of antibiotics with sulfoindocyanine succinimidyl ester (Cy5) and their separation and determination by MEKC with LIF detection. The optimum procedure includes a derivatization step of the antibiotics at 25 degrees C for 30 min and direct injection for MEKC analysis, which is performed in about 20 min by using borate buffer (35 mM; pH 9.2) with 55 mM SDS as an anionic surfactant and 20% ACN as the organic modifier. Under these conditions, dynamic ranges of 10-500 microg/L and RSDs (within-day precision) from 3.8 to 5.3% were obtained. These results indicate that the proposed MEKC-LIF method is useful as a selective and sensitive tool for the determination of these antibiotics and surpasses other reported electrophoretic alternatives. Finally, the method was successfully applied to bovine milk samples after a simple solid-phase extraction clean-up and preconcentration procedure. The aminoglycosides were readily detected at 0.5-1.5 microg/kg levels with average recoveries ranging from 89.4 to 93.3%.
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Serrano JM, Silva M. Rapid and sensitive determination of aminoglycoside antibiotics in water samples using a strong cation-exchange chromatography non-derivatisation method with chemiluminescence detection. J Chromatogr A 2006; 1117:176-83. [PMID: 16603169 DOI: 10.1016/j.chroma.2006.03.086] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2006] [Revised: 03/17/2006] [Accepted: 03/24/2006] [Indexed: 12/01/2022]
Abstract
A simple and sensitive chemiluminescence (CL) detection approach was developed for the direct analysis of aminoglycoside antibiotics in water samples following strong cation-exchange chromatographic (SCX-HPLC) separation. This detection system, which eliminates the need for sample derivatisation, is based on the inhibitory effect of aminoglycosides on the CL reaction between luminol and hydrogen peroxide catalysed by copper(II). As the operational and chemical variables that affect the CL signal were optimised, ionic strength and the Triton X-100 micelles turned out to be the keys to obtain maximum CL efficiency. Aminoglycosides were successfully separated in 10 min on a SCX column using a mobile phase consisting of an aqueous solution containing 5.0 x 10(-3)mol/l sodium acetate and 0.65 mol/l sodium chloride at pH 6.1. Sample volumes of 50 ml were preconcentrated by passage through a weakly acidic IRC-50 exchange column. Limits of detection from 0.7 to 10 microg/l and relative standard deviations from 2.7 to 5.4% were thus obtained. The proposed method surpasses other chromatographic alternatives in terms of the limit of detection, sample requirements for analysis and cost.
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Affiliation(s)
- Juan Manuel Serrano
- Department of Analytical Chemistry, Marie-Curie Building (Annex), Rabanales Campus, University of Cordoba, E-14071 Cordoba, Spain
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García-Ruiz C, Marina ML. Recent advances in the analysis of antibiotics by capillary electrophoresis. Electrophoresis 2006; 27:266-82. [PMID: 16421954 DOI: 10.1002/elps.200500430] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this review, the main aspects related to the separation of different groups of antibiotics by CE as well as the different applications reported in the literature from the beginning 2003 till May 2005 will be provided to the readers. Firstly, the experimental conditions employed to achieve the analysis of antibiotics by CE are given. Then, the main applications performed in the pharmaceutical, clinical, food, and environmental fields have been reviewed making emphasis on sample preparation requirements needed in each case. Finally, the main conclusions and future prospects in this field are presented.
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Affiliation(s)
- Carmen García-Ruiz
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
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Heller DN, Peggins JO, Nochetto CB, Smith ML, Chiesa OA, Moulton K. LC/MS/MS measurement of gentamicin in bovine plasma, urine, milk, and biopsy samples taken from kidneys of standing animals. J Chromatogr B Analyt Technol Biomed Life Sci 2005; 821:22-30. [PMID: 15905139 DOI: 10.1016/j.jchromb.2005.04.015] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2005] [Revised: 04/01/2005] [Accepted: 04/05/2005] [Indexed: 12/18/2022]
Abstract
Methods for the measurement of gentamicin concentration in several bovine tissues were developed and validated. A novel liquid chromatographic (LC) technique employed trifluoroacetic acid in the mobile phase so that all gentamicin components co-eluted. Analytes were ionized by positive-ion pneumatically assisted electrospray and detected by selected reaction monitoring (SRM) with an LC-tandem mass spectrometer (LC/MS/MS). Calibration of plasma and urine samples was based on tobramycin internal standard. Calibration of milk and kidney samples was based on external standard, due to variability of tobramycin response in these matrices. The extraction technique employed treatment with aqueous trichloroacetic acid to both precipitate protein and liberate gentamicin from the matrix. Milk samples had to be defatted by centrifugation prior to extraction. Urine samples were further cleaned up with C-18 solid phase extraction (SPE). These methods were validated for use in several residue depletion studies (reported elsewhere) to monitor the depletion of gentamicin in tissues under various dosing conditions. The plasma method was calibrated from 1 to 5000 ng/mL in two ranges, with a limit of quantitation (LOQ) in the low range calculated at 3.3 ng/mL. The milk method was calibrated from 2.5 to 2500 ng/mL with an LOQ calculated at 4.5 ng/mL. The urine method was designed for use at low levels, and was calibrated from 1 to 100 ng/mL with an LOQ of 3.8 ng/mL. The kidney method was primarily designed for analysis of small samples (approximately 100mg). This method was calibrated from 10 to 50,000 ng/g with an LOQ of 26 ng/g.
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Affiliation(s)
- David N Heller
- Food and Drug Administration, FDA Center for Veterinary Medicine, 8401 Muirkirk Road, Laurel, MD 20708, USA.
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