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Khalkho BR, Deb MK, Kurrey R, Sahu B, Saha A, Patle TK, Chauhan R, Shrivas K. Citrate functionalized gold nanoparticles assisted micro extraction of L-cysteine in milk and water samples using Fourier transform infrared spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120523. [PMID: 34715558 DOI: 10.1016/j.saa.2021.120523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 10/12/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
This paper describes the sensing application of citrate functionalized gold nanoparticles (AuNPs) employing for the determination of L-cysteine in food and water samples. It is established with diffuse reflectance Fourier transform infrared (DRS-FTIR) spectroscopic analysis. The disappearance of the thiol (-SH) band in the FTIR spectra and the shift in the peaks of the amino group (NH3+) and carboxylate group (-COO-) indicated the Au-S interaction and the aggregation of the NPs. The signal intensity of L-cysteine was enhanced due to hot-spots formed by the aggregation of AuNPs producing the effective absorption of electromagnetic radiation in the IR region for molecular vibration. The relationship between AuNPs and L-cysteine was theoretically investigated by the Density Function Theory (DFT) based on LANL2DZ with the aid of the Gaussian 09 (C.01) software. Interaction between AuNPs and L-cysteine molecules resulted to a shift to higher wavelengths in the plasmon bands, further verified by transmission electron microscopes (TEM), which have indicated random aggregated particles. Further dynamic light scattering (DLS) measurements showed a relatively high degree of polydispersity confirming the aggregation of the particles. Under optimized conditions, the calibration curve showed a good linearity range from 20 to 150 μg mL-1 with a correlation coefficient (R2) 0.990. The limit of detection and quantification were 1.04 and 3.44 μg mL-1, respectively by DRS-FTIR. This modified AuNPs sample was used successfully in milk and water samples with adequate results to determine L-cysteine.
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Affiliation(s)
- Beeta Rani Khalkho
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Manas Kanti Deb
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India; School of Studies in Environmental Science, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India; National Center for Natural Resources, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India.
| | - Ramsingh Kurrey
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Bhuneshwari Sahu
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Anushree Saha
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Tarun Kumar Patle
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Ravishankar Chauhan
- National Center for Natural Resources, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Kamlesh Shrivas
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
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Çifteci A, Çelik SE, Apak R. Gold–Nanoparticle Based Turn–on Fluorometric Sensor for Quantification of Sulfhydryl and Disulfide Forms of Biothiols: Measurement of Thiol/Disulfide Homeostasis. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1958830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Asuman Çifteci
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Saliha Esin Çelik
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Reşat Apak
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
- Turkish Academy of Sciences (TUBA), Cankaya, Ankara, Turkey
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3
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Twenty years of amino acid determination using capillary electrophoresis: A review. Anal Chim Acta 2021; 1174:338233. [DOI: 10.1016/j.aca.2021.338233] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 12/28/2022]
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Görüşük EM, Bekdeşer B, Bener M, Apak R. ABTS radical-based single reagent assay for simultaneous determination of biologically important thiols and disulfides. Talanta 2020; 218:121212. [PMID: 32797935 DOI: 10.1016/j.talanta.2020.121212] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 12/20/2022]
Abstract
Both the total amount of biothiols and thiol/disulfide ratio are wellness indicators of oxidative balance that play an important role in antioxidant defense system. Oxidized biothiols in disulfide form cannot be determined by conventional ABTS assay due to the biphasic kinetic pattern of the reaction between biothiols and ABTS radical cation (ABTS•+), necessitating the initial reduction of disulfides to thiols prior to measurement. In this study, direct simultaneous determination of biothiols (RSH) and their disulfides (RSSR) by using a single reagent of ABTS•+ was achieved without preliminary chemical reduction. Thus, conventional problems of preliminary operations arising from direct borohydride reduction of disulfides to thiols, followed by formaldehyde removal of borohydride excess and complications caused by formaldehyde-thiol reactions were effectively overcome with the use of a single reagent (ABTS•+). Box-Behnken statistical experimental design was employed to specify the optimal incubation temperature and time as 60 °C and 60 min, respectively. The detection limits (LOD) of the proposed assay for biothiols were compared to those of the widely used DTNB (Ellman) reference assay known to be nonresponsive to disulfides, and were found to be much lower (4-70 times). The proposed biothiol assay was successfully applied to some pharmaceutical samples and synthetic serum without preliminary treatment, and the results were highly compatible with the HPLC findings. The proposed assay was demonstrated to have superior features such as simplicity, rapidity and higher sensitivity over the widely applied Ellman thiols assay.
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Affiliation(s)
- Emine Münevver Görüşük
- Istanbul University-Cerrahpasa, Faculty of Engineering, Department of Chemistry, Avcilar, 34320, Istanbul, Turkey
| | - Burcu Bekdeşer
- Istanbul University-Cerrahpasa, Faculty of Engineering, Department of Chemistry, Avcilar, 34320, Istanbul, Turkey
| | - Mustafa Bener
- Istanbul University-Cerrahpasa, Faculty of Engineering, Department of Chemistry, Avcilar, 34320, Istanbul, Turkey
| | - Reşat Apak
- Istanbul University-Cerrahpasa, Faculty of Engineering, Department of Chemistry, Avcilar, 34320, Istanbul, Turkey.
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Ji Y, Luo H, Li H, Lin Z, Luo W. Determination of plasma homocysteine with a UHPLC-MS/MS method: Application to analyze the correlation between plasma homocysteine and whole blood 5-methyltetrahydrofolate in healthy volunteers. Biomed Chromatogr 2020; 34:e4845. [PMID: 32267542 DOI: 10.1002/bmc.4845] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/27/2020] [Accepted: 04/04/2020] [Indexed: 02/05/2023]
Abstract
An ultra-high performance liquid chromatography tandem mass spectrometry method was developed for determination of homocysteine (HCY) in human plasma. The HCY was derivatized with 2-chloro-1-methylquinolinium tetrafluoroborate and isolated using solid-phase extraction. Derivatization, isolation and detection procedures were optimized. Satisfactory linearity was obtained with determination coefficients (r2 ) >0.999. The intra- and inter-day precisions were in the interval of 1.2-5.1% and accuracy was within ±7%. Mean recoveries were close to 100%. The limit of detection and the limit of quantification were 0.46 and 1.38 μmol/L, respectively. The method was then applied to investigate the relationship between plasma HCY and whole blood 5-methyltetrahydrofolate levels in healthy volunteers. The results revealed that the plasma level of HCY was significantly negatively correlated to whole blood 5-methyltetrahydrofolate in volunteers.
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Affiliation(s)
- Yubin Ji
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
| | - Hongjun Luo
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
| | - Hui Li
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
| | - Zhexuan Lin
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
| | - Wenhong Luo
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
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Zhuang J, You J, Zhang S, Sun Z, Ji Z, Liu J, Yu Y. Determination of thiols by gas purge microsyringe extraction coupled with chemical derivatization by high performance liquid chromatography-fluorescence detection with mass spectrometry identification. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2018.1502671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jianlin Zhuang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu , China
| | - Jinmao You
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu , China
- Key Laboratory of Tibetan Medicine Research & Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology Chinese Academy of Science, Xining, China
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, China
| | - Shijuan Zhang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu , China
| | - Zhiwei Sun
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu , China
| | - Zhongyin Ji
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu , China
| | - Jiamin Liu
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu , China
| | - Yanxin Yu
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu , China
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Rajaram R, Mathiyarasu J. An electrochemical sensor for homocysteine detection using gold nanoparticle incorporated reduced graphene oxide. Colloids Surf B Biointerfaces 2018; 170:109-114. [DOI: 10.1016/j.colsurfb.2018.05.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 11/28/2022]
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8
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Yu Y, Luo X, Wang X, Sun Z, Song C, You J. A novel high-performance liquid chromatography-fluorescence analysis coupled with in situ degradation-derivatization technique for quantitation of organophosphorus thioester pesticide residues in tea. Anal Bioanal Chem 2018; 410:6911-6922. [PMID: 30159700 DOI: 10.1007/s00216-018-1294-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/23/2018] [Accepted: 07/24/2018] [Indexed: 11/25/2022]
Abstract
A novel high-performance liquid chromatography-fluorescence analysis in combination with in situ degradation-derivatization (ISD-D) technique was developed for simultaneous determination of seven organophosphorus thioester pesticides (OPTPs) in tea. The ISD-D technique was based on degradation of OPTPs by a nucleophilic substitution reaction between phenylbutane-1,2,3-trione-2-oxime and OPTPs, which can give thiol degradation products (DPs). The thiol DPs obtained were derivatized with the novel derivatization reagent N-(4-(carbazole-9-yl)-phenyl)-N-maleimide (NCPM) in a syringe. Attractively, NCPM itself did not fluoresce, whereas the derivatives of the thiol DPs fluoresced intensely, with excitation and emission maxima at 290 nm and 368 nm, respectively, which extraordinary reduced the background interference and increased the detection sensitivity for thiol DPs. Excellent linearity (R2 > 0.995) for all OPTPs was achieved, with limits of detection and limits of quantitation ranging from 0.23 to 0.45 μg/kg and from 0.75 to 1.43 μg/kg, respectively. Satisfactory recoveries ranging from 90.5% to 96.0% were obtained for all OPTPs. The ISD-D technique provided a novel and sensitive strategy for quantitation of trace amounts of OPTPs in real samples. Graphical abstract ᅟ.
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Affiliation(s)
- Yanxin Yu
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Xianzhu Luo
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Xu Wang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Zhiwei Sun
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Cuihua Song
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, Shandong, China.
| | - Jinmao You
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, Shandong, China.
- Key Laboratory of Tibetan Medicine Research & Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, 810001, Qinghai, China.
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Renault K, Fredy JW, Renard PY, Sabot C. Covalent Modification of Biomolecules through Maleimide-Based Labeling Strategies. Bioconjug Chem 2018; 29:2497-2513. [PMID: 29954169 DOI: 10.1021/acs.bioconjchem.8b00252] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Since their first use in bioconjugation more than 50 years ago, maleimides have become privileged chemical partners for the site-selective modification of proteins via thio-Michael addition of biothiols and, to a lesser extent, via Diels-Alder (DA) reactions with biocompatible dienes. Prominent examples include immunotoxins and marketed maleimide-based antibody-drug conjugates (ADCs) such as Adcetris, which are used in cancer therapies. Among the key factors in the success of these groups is the availability of several maleimides that can be N-functionalized by fluorophores, affinity tags, spin labels, and pharmacophores, as well as their unique reactivities in terms of selectivity and kinetics. However, maleimide conjugate reactions have long been considered irreversible, and only recently have systematic studies regarding their reversibility and stability toward hydrolysis been reported. This review provides an overview of the diverse applications for maleimides in bioconjugation, highlighting their strengths and weaknesses, which are being overcome by recent strategies. Finally, the fluorescence quenching ability of maleimides was leveraged for the preparation of fluorogenic probes, which are mainly used for the specific detection of thiol analytes. A summary of the reported structures, their photophysical features, and their relative efficiencies is discussed in the last part of the review.
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Affiliation(s)
- Kévin Renault
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
| | - Jean Wilfried Fredy
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
| | - Pierre-Yves Renard
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
| | - Cyrille Sabot
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
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10
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Cieslarova Z, Lopes FS, do Lago CL, França MC, Colnaghi Simionato AV. Capillary electrophoresis tandem mass spectrometry determination of glutamic acid and homocysteine's metabolites: Potential biomarkers of amyotrophic lateral sclerosis. Talanta 2017; 170:63-68. [PMID: 28501214 DOI: 10.1016/j.talanta.2017.03.103] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 12/13/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease that affects both lower and upper motor neurons, leading to muscle atrophy, paralysis, and death caused by respiratory failure or infectious complications. Altered levels of homocysteine, cysteine, methionine, and glutamic acid have been observed in plasma of ALS patients. In this context, a method for determination of these potential biomarkers in plasma by capillary electrophoresis tandem mass spectrometry (CE-MS/MS) is proposed herein. Sample preparation was carefully investigated, since sulfur-containing amino acids may interact with plasma proteins. Owing to the non-thiol sulfur atom in methionine, it was necessary to split sample preparation into two methods: i) determination of homocysteine and cysteine as S-acetyl amino acids; ii) determination of glutamic acid and methionine. All amino acids were separated within 25min by CE-MS/MS using 5molL-1 acetic acid as background electrolyte and 5mmolL-1 acetic acid in 50% methanol/H2O (v/v) as sheath liquid. The proposed CE-MS/MS method was validated, presenting RSD values below 6% and 11% for intra- and inter-day precision, respectively, for the middle concentration level within the linear range. The limits of detection ranged from 35 (homocysteine) to 268nmolL-1 (glutamic acid). The validated method was applied to the analysis of plasma samples from a group of healthy individuals and patients with ALS, showing the potential of glutamic acid and homocysteine metabolites as biomarkers of ALS.
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Affiliation(s)
- Zuzana Cieslarova
- Institute of Chemistry, Department of Analytical Chemistry, University of Campinas, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
| | - Fernando Silva Lopes
- Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748 - Cidade Universitaria, 05508-000 São Paulo, SP, Brazil
| | - Claudimir Lucio do Lago
- Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748 - Cidade Universitaria, 05508-000 São Paulo, SP, Brazil
| | - Marcondes Cavalcante França
- Faculty of Medical Sciences, Department of Neurology, University of Campinas, P.O. Box 6111, 13083-970 Campinas, SP, Brazil
| | - Ana Valéria Colnaghi Simionato
- Institute of Chemistry, Department of Analytical Chemistry, University of Campinas, P.O. Box 6154, 13083-970 Campinas, SP, Brazil; National Institute of Science and Technology in Bioanalytics, Institute of Chemistry, Department of Analytical Chemistry, University of Campinas, P.O. Box 6154, 13083-970 Campinas, SP, Brazil.
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Lv Z, Sun Z, Song C, Lu S, Chen G, You J. Sensitive and background-free determination of thiols from wastewater samples by MOF-5 extraction coupled with high-performance liquid chromatography with fluorescence detection using a novel fluorescence probe of carbazole-9-ethyl-2-maleimide. Talanta 2016; 161:228-237. [DOI: 10.1016/j.talanta.2016.08.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 08/02/2016] [Accepted: 08/16/2016] [Indexed: 12/19/2022]
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12
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Denoroy L, Parrot S. Analysis of Amino Acids and Related Compounds by Capillary Electrophoresis. SEPARATION AND PURIFICATION REVIEWS 2016. [DOI: 10.1080/15422119.2016.1212378] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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13
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Duan YJ, Zhang LY, Guo XF, Wang H. A CE-LIF method based on long wavelength fluorescence labeling for the analysis of thiols in human urine. Electrophoresis 2016; 37:2097-105. [DOI: 10.1002/elps.201600148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 04/07/2016] [Accepted: 04/12/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Ya-Jun Duan
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences; Wuhan University; Wuhan P. R. China
- Suzhou Institute of Wuhan University; Suzhou P. R. China
| | - Li-Yun Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences; Wuhan University; Wuhan P. R. China
| | - Xiao-Feng Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences; Wuhan University; Wuhan P. R. China
- Suzhou Institute of Wuhan University; Suzhou P. R. China
| | - Hong Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences; Wuhan University; Wuhan P. R. China
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Hodáková J, Preisler J, Foret F, Kubáň P. Sensitive determination of glutathione in biological samples by capillary electrophoresis with green (515nm) laser-induced fluorescence detection. J Chromatogr A 2015; 1391:102-8. [DOI: 10.1016/j.chroma.2015.02.062] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 02/02/2015] [Accepted: 02/20/2015] [Indexed: 10/23/2022]
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Singh A, Singh A, Singh N, Jang DO. A benzimidazolium-based organic trication: a selective fluorescent sensor for detecting cysteine in water. RSC Adv 2015. [DOI: 10.1039/c5ra14501e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A benzimidazolium- and imidazolium-based trication was developed as a selective fluorescence probe for cysteine.
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Affiliation(s)
- Amanpreet Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Ajnesh Singh
- Department of Applied Science & Humanities
- Jawaharlal Nehru Govt. Engineering College
- Sundernagar
- India
| | - Narinder Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Doo Ok Jang
- Department of Chemistry
- Yonsei University
- Wonju 220-710
- Republic of Korea
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Zhang LY, Tu FQ, Guo XF, Wang H, Wang P, Zhang HS. Rapid and sensitive determination of free thiols by capillary zone electrophoresis with near-infrared laser-induced fluorescence detection using a new BODIPY-based probe as labeling reagent. Electrophoresis 2014; 35:2951-8. [DOI: 10.1002/elps.201400203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/16/2014] [Accepted: 07/18/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Li-Yun Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan P. R. China
| | - Feng-Qin Tu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan P. R. China
| | - Xiao-Feng Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan P. R. China
| | - Hong Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan P. R. China
| | - Peng Wang
- Hubei Entry Exit Inspect & Quarantine Bur PRC, Ctr Technol; Wuhan P. R. China
| | - Hua-Shan Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University; Wuhan P. R. China
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Newton LAA, Sandhu K, Livingstone C, Leslie R, Davis J. Clinical diagnostics for homocysteine: a rogue amino acid? Expert Rev Mol Diagn 2014; 10:489-500. [DOI: 10.1586/erm.10.19] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Liu X, Lv H, Sun Q, Zhong Y, Zhao J, Fu J, Lin M, Wang J. Differential Pulse Voltammetric Determination of L-Cysteine After Cyclic Voltammetry in Presence of Catechol with Glassy Carbon Electrode. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.686133] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Guo XF, Zhang HX, Ma LN, Wang H, Zhang HS, Guo J. Determination of thiols by capillary micellar electrokinetic chromatography with laser induced fluorescence detection using 1,3,5,7-tetramethyl-8-phenyl-(4-iodoacetamido) difluoroboradiaza-s
-indacene as labeling reagent. J Sep Sci 2012; 35:2756-63. [DOI: 10.1002/jssc.201200474] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 06/19/2012] [Accepted: 06/20/2012] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao-Feng Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); Department of Chemistry; Wuhan University; Wuhan China
| | - Hui-Xian Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); Department of Chemistry; Wuhan University; Wuhan China
| | - Li-Na Ma
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); Department of Chemistry; Wuhan University; Wuhan China
| | - Hong Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); Department of Chemistry; Wuhan University; Wuhan China
| | - Hua-Shan Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); Department of Chemistry; Wuhan University; Wuhan China
| | - Jian Guo
- Technology Center of Hubei Entry-Exit Inspection and Quarantine Bureau of PRC; Wuhan China
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Tan H, Chen Y. Detection of biothiols in cells by a terbium chelate-Hg (II) system. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:017001. [PMID: 22352667 DOI: 10.1117/1.jbo.17.1.017001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Great efforts have been devoted to the development of sensitive and specific analysis methods for biothiols because of their important roles in biological systems. We present a new detection system for biothiols that is based on the reversible quenching and restoration of fluorescence of terbium chelate caused by Hg(2+) and thiol species. In the presence of biothiols, a restoration of fluorescence of terbium chelate after quenching by Hg(2+) was observed due to the interaction of Hg(2+) with thiol groups, and the restored fluorescence increased with the concentration of biothiols. This method was sensitive and selective for biothiols. The detection limit was 80 nM for glutathione, 100 nM for Hcy, and 400 nM for Cysteine, respectively. The terbium chelate-Hg (II) system was successfully applied to determine the levels of biothiols in cancer cells and urine samples. Further, it was also shown to be comparable to Ellman's assay. Compared to other fluorescence methods, the terbium chelate probe is advantageous because interference from short-lived nonspecific fluorescence can be efficiently eliminated due to the long fluorescence lifetime of terbium chelate, which allows for detection by time-resolved fluorescence. The terbium chelate probe can serve as a diagnostic tool for the detection of abnormal levels of biothiols in disease.
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Affiliation(s)
- Hongliang Tan
- Southeast University, State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Nanjing 210096, China
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21
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Mu X, Zhao S, Huang Y, Ye F. Use of capillary electrophoresis with chemiluminescence detection for sensitive determination of homocysteine. J Sep Sci 2011; 35:280-5. [DOI: 10.1002/jssc.201100650] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 10/08/2011] [Accepted: 10/08/2011] [Indexed: 11/07/2022]
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22
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Huang KJ, Jing QS, Wei CY, Wu YY. Spectrofluorimetric determination of glutathione in human plasma by solid-phase extraction using graphene as adsorbent. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1860-1865. [PMID: 21684195 DOI: 10.1016/j.saa.2011.05.076] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2010] [Revised: 05/18/2011] [Accepted: 05/24/2011] [Indexed: 05/30/2023]
Abstract
An efficient solid phase extraction-spectrofluorimetric method using graphene as adsorbent was developed to sensitively determine glutathione (GSH) in biological samples. Fluorescent probe N-(4,4-difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene-3-yl)methyl)iodoacetamide (BODIPY Fl-C1-IA) was applied for the derivatization of GSH. The procedure was based on BODIPY Fl-C1-IA selective reaction with GSH to form highly fluorescent product BODIPY Fl-C1-IA-GSH, its extraction to the graphene-packed SPE cartridge and spectrofluorimetric determination. Some factors affecting the extraction efficiency, such as the type of the eluent and its volume, sample pH, extraction time, and sample volume were optimized. Comparative studies were also performed between graphene and other adsorbents including C18 silica, graphitic carbon, and multi-walled carbon nanotubes for the extraction of analyte. The calibration graph using the pretreatment system for GSH was linear over the range of 0.5-200 nM. The limit of detection was 0.01 nM (signal-to-noise ratio=3). Relative standard deviation for six replicate determinations of GSH at 80 nM concentration level was lower than 5.0%. The developed method was applied to the determination of GSH in human plasma with recoveries of 92-108%. This work revealed the great potentials of graphene as an excellent sorbent material in the analysis of biological samples.
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Affiliation(s)
- Ke-Jing Huang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, PR China.
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Khan AAP, Mohd A, Bano S, Siddiqi KS. Spectrophotometric interaction of the oxidation of captopril by hexacyanoferrate(III) in an alkaline medium: a kinetic and mechanistic approach. J Sulphur Chem 2011. [DOI: 10.1080/17415993.2011.613472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Aftab Aslam Parwaz Khan
- a Department of Chemistry , Aligarh Muslim University , Aligarh, 202002, Uttar Pradesh, India
| | - Ayaz Mohd
- a Department of Chemistry , Aligarh Muslim University , Aligarh, 202002, Uttar Pradesh, India
| | - Shaista Bano
- a Department of Chemistry , Aligarh Muslim University , Aligarh, 202002, Uttar Pradesh, India
| | - K. S. Siddiqi
- a Department of Chemistry , Aligarh Muslim University , Aligarh, 202002, Uttar Pradesh, India
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S-Glutathionyl quantification in the attomole range using glutaredoxin-3-catalyzed cysteine derivatization and capillary gel electrophoresis with laser-induced fluorescence detection. Anal Bioanal Chem 2011; 401:2165-75. [PMID: 21842197 DOI: 10.1007/s00216-011-5311-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 08/01/2011] [Accepted: 08/02/2011] [Indexed: 01/05/2023]
Abstract
S-glutathionylation (Pr-SSG) is a specific post-translational modification of cysteine residues by the addition of glutathione. S-Glutathionylated proteins induced by oxidative or nitrosative stress play an essential role in understanding the pathogenesis of the aging and age-related disorder, such as Alzheimer's disease (AD). The purpose of this research is to develop a novel and ultrasensitive method to accurately and rapidly quantify the Pr-SSG by using capillary gel electrophoresis with laser-induced fluorescence detection (CGE-LIF). The derivatization method is based on the specific reduction of protein-bound S-glutathionylation with glutaredoxin (Grx) and labeling with thiol-reactive fluorescent dye (Dylight 488 maleimide). The experiments were performed by coupling the derivatization method with CGE-LIF to study electrophoretic profiling in in vitro oxidative stress model-S-glutathionylated bovine serum albumin (BSA-SSG), oxidant-induced human colon adenocarcinoma (HT-29) cells, brain tissues, and whole blood samples from an AD transgenic (Tg) mouse model. The results showed almost an eightfold increase in S-glutathionyl abundance when subjecting HT-29 cells in an oxidant environment, resulting in Pr-SSG at 232 ± 10.64 (average ±SD; n=3) nmol/mg. In the AD-Tg mouse model, an initial quantitative measurement demonstrated the extent of protein S-glutathionylation in three brain regions (hippocampus, cerebellum, and cerebrum), ranging from 1 to 10 nmol/mg. Additionally, we described our developed method to potentially serve as a highly desirable diagnostic tool for monitoring S-glutathionylated protein profile in minuscule amount of whole blood. The whole blood samples for S-glutathionyl expression of 5-month-old AD-Tg mice are quantified as 16.3 μmol/L (=7.2 nmol/mg protein). Altogether, this is a fast, easy, and accurate method, reaching the lowest limit of Pr-SSG detection at 1.8 attomole (amol) level, reported to date.
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25
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Determination of thiol compounds by solid-phase extraction using multi-walled carbon nanotubes as adsorbent coupled with high-performance liquid chromatography-fluorescence detection. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0642-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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26
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Huang KJ, Han CH, Wu YY, Han CQ, Niu DJ, Wu ZW, Xue YP. Development of a solid-phase extraction – spectrofluorimetric method for trace glutathione determination. CAN J CHEM 2011. [DOI: 10.1139/v11-006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A simple and efficient solid-phase extraction – spectrofluorimetric method has been developed to determine glutathione (GSH). Fluorescent probe N-(4,4-difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene-3-yl)methyl)iodoacetamide (BODIPY Fl-C1-IA) was used as the derivatization reagent. The procedure was based on a BODIPY Fl-C1-IA selective reaction with GSH to form the highly fluorescent product BODIPY Fl-C1-IA–GSH, using a solid-phase extraction column and spectrofluorimetric determination. The variables affecting analytical performance were studied and optimized. The calibration graph using the preconcentration system for GSH was linear over the range of 1–200 nmol/L with a limit of detection of 0.05 nmol/L (signal-to-noise ratio = 3). The relative standard deviation for six replicate determinations of GSH at the 100 nmol/L concentration level was 3.9%. The method was applied to water samples and average recoveries between 87.5% and 111.5% were obtained for spiked samples.
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Affiliation(s)
- Ke-Jing Huang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
- College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, P. R. China
| | - Cong-Hui Han
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
- College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, P. R. China
| | - Ying-Ying Wu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
- College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, P. R. China
| | - Chao-Qun Han
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
- College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, P. R. China
| | - De-Jun Niu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
- College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, P. R. China
| | - Zhi-Wei Wu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
- College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, P. R. China
| | - Ya-Ping Xue
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
- College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, P. R. China
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27
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Khamanga SM, Walker RB. The use of experimental design in the development of an HPLC–ECD method for the analysis of captopril. Talanta 2011; 83:1037-49. [DOI: 10.1016/j.talanta.2010.11.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 11/10/2010] [Accepted: 11/10/2010] [Indexed: 11/30/2022]
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28
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Sun SK, Wang HF, Yan XP. A sensitive and selective resonance light scattering bioassay for homocysteine in biological fluids based on target-involved assembly of polyethyleneimine-capped Ag-nanoclusters. Chem Commun (Camb) 2011; 47:3817-9. [DOI: 10.1039/c0cc04463f] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Bakirdere S, Bramanti E, D’ulivo A, Ataman OY, Mester Z. Speciation and determination of thiols in biological samples using high performance liquid chromatography–inductively coupled plasma-mass spectrometry and high performance liquid chromatography–Orbitrap MS. Anal Chim Acta 2010; 680:41-7. [DOI: 10.1016/j.aca.2010.09.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Accepted: 09/14/2010] [Indexed: 02/06/2023]
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30
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Zhang LY, Sun MX. Fast determination of glutathione by capillary electrophoresis with fluorescence detection using beta-cyclodextrin as modifier. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:4051-4. [PMID: 19858002 DOI: 10.1016/j.jchromb.2009.10.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 08/14/2009] [Accepted: 10/01/2009] [Indexed: 11/24/2022]
Abstract
A rapid analytical method was developed for the quantitative determination of glutathione (GSH) using capillary electrophoresis and fluorescence detection. A fluorescence derivatization reagent, naphthalene-2,3-dicarboxaldehyde (NDA) was successfully applied to label GSH. The optimal derivatization reaction was performed with 5.0 mM NDA, 20 mM borate buffer (pH 9.2) with the reaction time of 4 min at room temperature. The capillary electrophoresis analysis of GSH could be achieved in less than 120 s using 10 mM sodium tetraborate (pH 9.2) containing 2.5 mM beta-cyclodextrin (beta-CD) as the running buffer, and the detection limit of 2.5 x 10(-9) M (S/N=3) was obtained. This method was successfully applied to analyze the content of GSH in tobacco BY-2 cells.
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Affiliation(s)
- Li-Yao Zhang
- Key Laboratory of MOE for Plant Development Biology, College of Life Sciences, Wuhan University, Wuhan 430072, China.
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31
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Głowacki R, Bald E. Determination of N-Acetylcysteine and Main Endogenous Thiols in Human Plasma by HPLC with Ultraviolet Detection in the Form of Their S-Quinolinium Derivatives. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903249666] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- R. Głowacki
- a Department of Environmental Chemistry , University of Łódź , Łódź, Poland
| | - E. Bald
- a Department of Environmental Chemistry , University of Łódź , Łódź, Poland
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32
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Fully automated method for simultaneous determination of total cysteine, cysteinylglycine, glutathione and homocysteine in plasma by HPLC with UV absorbance detection. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3400-4. [DOI: 10.1016/j.jchromb.2009.06.012] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2009] [Revised: 06/03/2009] [Accepted: 06/08/2009] [Indexed: 11/19/2022]
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33
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Carlucci F, Tabucchi A. Capillary electrophoresis in the evaluation of aminothiols in body fluids. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3347-57. [DOI: 10.1016/j.jchromb.2009.07.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2009] [Revised: 07/10/2009] [Accepted: 07/21/2009] [Indexed: 11/28/2022]
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34
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Simultaneous analysis of multiple aminothiols in human plasma by high performance liquid chromatography with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3274-81. [DOI: 10.1016/j.jchromb.2009.05.046] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Revised: 05/18/2009] [Accepted: 05/21/2009] [Indexed: 11/18/2022]
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35
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Kuśmierek K, Bald E. Reversed-phase liquid chromatography method for the determination of total plasma thiols after derivatization with 1-benzyl-2-chloropyridinium bromide. Biomed Chromatogr 2009; 23:770-5. [DOI: 10.1002/bmc.1183] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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36
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Pérez-Rama M, Abalde J, Herrero C, Suárez C, Torres E. A capillary zone electrophoresis for determination of thiolic peptides in biological samples. J Sep Sci 2009; 32:2152-8. [DOI: 10.1002/jssc.200900104] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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37
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Selective enrichment of aminothiols using polysorbate 20-capped gold nanoparticles followed by capillary electrophoresis with laser-induced fluorescence. J Chromatogr A 2008; 1216:288-93. [PMID: 19058808 DOI: 10.1016/j.chroma.2008.11.044] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Revised: 11/09/2008] [Accepted: 11/17/2008] [Indexed: 11/21/2022]
Abstract
In this article, we report a simple method for selective enrichment of aminothiols using Tween 20-capped gold nanoparticles (AuNPs) prior to capillary electrophoresis coupled with laser-induced fluorescence (CE-LIF). Compared to citrate-capped AuNPs, Tween 20-capped AuNPs exhibit the ability to disperse in a highly saline solution and selectively extract aminothiols through the formation of Au-S bonds. After extraction and centrifugation, 1mM thioglycollic acid (TGA) was utilized to remove aminothiols that attached to the NP surfaces. After a solution of 8.0 mL aminothiols were extracted using 2x AuNPs (200 microL), the extracted aminothiols derivatized with o-phthalaldehyde at pH 12.0 were detected by CE-LIF. As a result, the limits of detection at a signal-to-noise ratio of 3 for homocysteine (HCys), glutathione (GSH), and gamma-glutamycysteine (Glu-cys) are 4013.2, 79.8, and 382.8 pM, respectively. The use of this probe provided approximately 11-, 282-, and 21-fold sensitivity improvements for HCys, GSH, and Glu-cys, respectively. A practical analysis of HCys, GSH, and Glu-cys in human urine sample has been accomplished by this present method.
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38
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Kuśmierek K, Bald E. Measurement of reduced and total mercaptamine in urine using liquid chromatography with ultraviolet detection. Biomed Chromatogr 2008; 22:441-5. [PMID: 18205146 DOI: 10.1002/bmc.959] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A simple liquid chromatographic method for the determination of reduced and total mercaptamine in human urine is described. The method is based on derivatization with 2-chloro-1-methylquinolinium tetrafluoroborate followed by ion-pairing reversed-phase liquid chromatography separation and ultraviolet-absorbance detection at 355 nm. Total mercaptamine was determined by reductive conversion of its oxidized fraction to the thiol form before the derivatization step. Baseline separation was achieved on an analytical Zorbax SB C(18) (5 microm, 150 x 4.6 mm) column with a mobile phase consisting of pH 2.0 0.05 mol L(-1) trichloroacetic acid buffer (component A) and acetonitrile (component B) pumped at 1.2 mL min(-1). Gradient elution was used: 0-3 min 12% B, 3-9 min 12-30% B, 9-12 min 30-12% B. The response of the detector was linear within the ranges studied, from 0.1 to 50 micromol L(-1) for reduced mercaptamine and from 0.4 to 400 micromol L(-1) for total mercaptamine. The imprecision ranges for reduced and total mercaptamine were within 1.45-11.71 and 0.73-10.61%, respectively. The analytical accuracy for determined compounds was from 98.79 to 109.77%. The lower limits of detection and quantitation were 0.05 and 0.1 micromol L(-1) of urine for reduced mercaptamine, and 0.2 and 0.4 micromol L(-1) of urine for total mercaptamine, respectively. This method can be used for routine clinical monitoring of the title thiol-drug and its reduced and oxidized fractions. Moreover, cysteine and cysteinylglycine can be measured concurrently, if needed.
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Affiliation(s)
- Krzysztof Kuśmierek
- Department of Environmental Chemistry, University of Lodz, 163 Pomorska Str., 90-236 Lodz, Poland
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39
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Alacam S, Timur S, Telefoncu A. A novel biosensor based on l-homocysteine desulfhydrase enzyme immobilized in eggshell membrane. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcatb.2007.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Nolin TD, McMenamin ME, Himmelfarb J. Simultaneous determination of total homocysteine, cysteine, cysteinylglycine, and glutathione in human plasma by high-performance liquid chromatography: application to studies of oxidative stress. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 852:554-61. [PMID: 17336168 PMCID: PMC1959569 DOI: 10.1016/j.jchromb.2007.02.024] [Citation(s) in RCA: 186] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2006] [Revised: 02/08/2007] [Accepted: 02/10/2007] [Indexed: 11/25/2022]
Abstract
A sensitive, reproducible, and robust high-performance liquid chromatography (HPLC) method has been validated for simultaneously determining total concentrations of the aminothiols homocysteine, cysteine, cysteinylglycine, and glutathione in human plasma. Plasma aminothiols are reduced via incubation with tris-(2-carboxyethyl)-phosphine hydrochloride, followed by protein precipitation with trichloroacetic acid and derivatization with ammonium-7-fluorobenzo-2-oxa-1,3-diazole-4-sulfonic acid. Separation of aminothiols and the internal standard mercaptopropionylglycine is achieved using reversed-phase HPLC conditions and fluorescence detection. Excellent linearity is observed for all analytes over their respective concentration ranges with correlation coefficients (r) > 0.99. The intra- and inter-day precision and accuracy were within +/-10%. This method utilizes an internal standard, employs phosphate buffered saline-based standards and quality controls, and demonstrates excellent plasma recovery and improved sensitivity. This assay is well suited for high-throughput quantitative determination of aminothiols in clinical studies, and is currently being used to support investigations of oxidative stress in patients with chronic kidney disease.
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Affiliation(s)
- Thomas D Nolin
- Division of Nephrology and Transplantation, Department of Medicine, Maine Medical Center, 22 Bramhall Street, Portland, ME 04102, USA.
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41
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Zhao D, McIntosh M, Fein H, Zhang X. Comparison of Methionine α,γ-Lyase and Homocysteine α,γ-Lyase for Electrochemical Determination of Homocysteine. ELECTROANAL 2007. [DOI: 10.1002/elan.200603824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Sack R, Willi A, Hunziker PE. DETERMINATION OF TOTAL GLUTATHIONE IN CELL LYSATES BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY WITHO-PHTHALALDEHYDE PRECOLUMN DERIVATIZATION IN THE PRESENCE OF TRIS(2-CARBOXYETHYL)-PHOSPHINE. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-100101835] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ragna Sack
- a Biochemisches Institut, Universität Zürich , Winterthurerstr. 190, Zürich, CH-8057, Switzerland
| | - Annemarie Willi
- a Biochemisches Institut, Universität Zürich , Winterthurerstr. 190, Zürich, CH-8057, Switzerland
| | - Peter E. Hunziker
- a Biochemisches Institut, Universität Zürich , Winterthurerstr. 190, Zürich, CH-8057, Switzerland
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43
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Musenga A, Mandrioli R, Bonifazi P, Kenndler E, Pompei A, Raggi MA. Sensitive and selective determination of glutathione in probiotic bacteria by capillary electrophoresis–laser induced fluorescence. Anal Bioanal Chem 2007; 387:917-24. [PMID: 17203251 DOI: 10.1007/s00216-006-0980-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2006] [Accepted: 11/02/2006] [Indexed: 10/23/2022]
Abstract
Glutathione (GSH) is a thiol with an important function in protecting tissue against the oxidative stress which has been related to carcinogenesis in the colon. For this reason the development of probiotic species producing glutathione could be of great interest. To determine the glutathione content of some probiotic bacteria of the Bifidobacterium and Lactococcus genera, a very sensitive and selective analytical method based on capillary electrophoresis coupled to laser-induced fluorescence detection has been developed. Pretreatment of cell-lysate samples is very simple--precipitation of protein with acetonitrile in 1:2 volume ratio. The fluorophore 5-iodoacetamidofluorescein (5-IAF) was chosen for glutathione derivatisation; it reacts with thiols at pH 12.5, forming a fluorescent adduct which is excited by a laser at 488 nm for detection. The reaction conditions optimised were temperature, time, and 5-IAF/GSH molar ratio. Electrophoresis was performed with a carbonate buffer (25 mmol L(-1), pH 9.8) as background electrolyte and a voltage of 30 kV; an electrophoretic run was complete in less than 7 min. There was a good linear relationship between concentration and response in the range 2.5-500 ng mL(-1) and the LOD was 0.5 ng mL(-1). The glutathione content of probiotic cells was determined by using the standard additions method to reduce matrix effects. The method was fully validated and shown to be of suitable sensitivity and selectivity for determination of GSH in probiotic cell lysates.
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Affiliation(s)
- Alessandro Musenga
- Department of Pharmaceutical Sciences, University of Bologna, Via Belmeloro 6, 40126, Bologna, Italy
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44
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Gupte A, Mumper RJ. An investigation into copper catalyzed D-penicillamine oxidation and subsequent hydrogen peroxide generation. J Inorg Biochem 2006; 101:594-602. [PMID: 17275091 DOI: 10.1016/j.jinorgbio.2006.12.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2006] [Revised: 12/11/2006] [Accepted: 12/12/2006] [Indexed: 11/29/2022]
Abstract
D-Penicillamine is a potent copper (Cu) chelating agent. D-Pen reduces Cu(II) to Cu(I) in the process of chelation while at the same time being oxidized to D-penicillamine disulfide. It has been proposed that hydrogen peroxide is generated during this process. However, definitive experimental proof that hydrogen peroxide is generated remains lacking. Thus, the major aims of these studies were to confirm and quantitatively assess the in vitro production of hydrogen peroxide during copper catalyzed D-penicillamine oxidation. The potential cytotoxic effect of hydrogen peroxide generation was also investigated in vitro against MCF-7 human breast cancer cells. Cell cytotoxicity resulting from the incubation of D-penicillamine with copper was compared to that of D-penicillamine, copper and hydrogen peroxide. The mechanism of copper catalyzed D-penicillamine oxidation and simultaneous hydrogen peroxide production was investigated as a function of time, concentration of cupric sulfate or ferric chloride, temperature, pH, anaerobic condition and chelators such as ethylenediaminetetraacetic acid and bathocuproinedisulfonic acid. A simple, sensitive and rapid HPLC assay was developed to simultaneously detect D-penicillamine, its major oxidation product D-penicillamine disulfide, and hydrogen peroxide in a single run. Hydrogen peroxide was shown to be generated in a concentration dependent manner as a result of D-penicillamine oxidation in the presence of cupric sulfate. Chelators such as ethylenediaminetetraacetic acid and bathocuproinedisulfonic acid were able to inhibit D-penicillamine oxidation. The incubation of MCF-7 human breast cancer cells with D-penicillamine plus cupric sulfate resulted in the production of reactive oxygen species within the cell and cytotoxicity that was comparable to free hydrogen peroxide.
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Affiliation(s)
- Anshul Gupte
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 725 Rose Street, Lexington, KY 40536-0082, USA
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Zakharchuk N, Borisova N, Guselnikova E, Brainina K. Determination of Thiols and Disulfides in Whole Blood and Its Fractions by Anodic Stripping Voltammetry and Anodic Stripping Voltammetric Titration. ELECTROANAL 2006. [DOI: 10.1002/elan.200603670] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Lavigne V, Pons A, Dubourdieu D. Assay of glutathione in must and wines using capillary electrophoresis and laser-induced fluorescence detection. Changes in concentration in dry white wines during alcoholic fermentation and aging. J Chromatogr A 2006; 1139:130-5. [PMID: 17125780 DOI: 10.1016/j.chroma.2006.10.083] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2006] [Revised: 10/25/2006] [Accepted: 10/30/2006] [Indexed: 10/23/2022]
Abstract
Glutathione (GSH) was assayed in must and wine using capillary electrophoresis coupled with laser-induced fluorescence (LIF) detection. Sample preparation involved conjugating thiols with monobromobimane (MBB) in a 2-(N-cyclohexylamino)ethanesulfonic acid [CHES] buffer (179mM). The electrophoretic conditions were 30kV with a capillary length of 105cm from the inlet to the detector (120cm total length) and a 50microm inner diameter. Under these conditions, the complete separation from the other main non-volatile thiols took less than 20min. We also described the optimum conditions for derivatizing wine samples with MBB to increase eletrophoretic sensitivity. The detection limit for glutathione assay is 65nmol/L. This simple, sensitive method provides a specific assay of glutathione in reduced form, as the sample preparation technique does not modify the balance of oxidized and reduced forms. We used this method to monitor changes in the reduced glutathione content of a white wine during alcoholic fermentation and barrel aging.
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Affiliation(s)
- Valérie Lavigne
- SEGUIN MOREAU France, Z.I. Merpins, B.P. 94, 16103 Cognac, France
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Kubalczyk P, Bald E. Transient pseudo-isotachophoretic stacking in analysis of plasma for homocysteine by capillary zone electrophoresis. Anal Bioanal Chem 2006; 384:1181-5. [PMID: 16477423 DOI: 10.1007/s00216-005-0271-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2005] [Revised: 12/02/2005] [Accepted: 12/03/2005] [Indexed: 11/29/2022]
Abstract
An analytical procedure enabling routine analysis of human plasma for total homocysteine has been developed and validated. The method includes reduction of homocysteine disulfides to thiol with tris 2-carboxyethylphosphine, derivatization of the thiol with 2-chloro-1-methylquinolinium tetrafluoroborate, separation of homocysteine 2-S-quinolinium derivative from those of plasma endogenous and exogenous thiol derivatives by capillary zone electrophoresis, and quantitation with the use of ultraviolet detection based on acetonitrile stacking. Method performance characteristics, for example recovery, calibration, precision, limit of detection, and limit of quantitation, are presented. The procedure was applied to analysis of plasma samples donated by apparently healthy volunteers.
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Affiliation(s)
- P Kubalczyk
- Department of Environmental Chemistry, University of Lodz, 90-236 Lodz, Poland
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48
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Huck CW, Bakry R, Bonn GK. Progress in capillary electrophoresis of biomarkers and metabolites between 2002 and 2005. Electrophoresis 2006; 27:111-25. [PMID: 16315181 DOI: 10.1002/elps.200500493] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Biomarker discovery and metabolite research is a fast-growing and extremely important domain not only for the early detection of certain diseases but also for controlling its progress as well as in pharmaceutical investigations. For the analytical separation and identification, CE plays an indisputable role. Capillary systems enhancing different selectivity are applied and connected to different kind of detection systems. As the choice of buffer and its composition is responsible for a successful separation, special emphasis is put on solvent effects in this review. Altogether the most important capillary electrophoretic techniques applied for biomarker and metabolites analysis published between 2002 and 2005 are summarized and discussed.
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Affiliation(s)
- Christian W Huck
- Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innsbruck, Austria.
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Xu H, Zhang W, Zhu W, Wang D, Ye J, Yamamoto K, Jin L. Simultaneous determination of total homocysteine, cysteine and methionine in hypothyroid patients’ plasma by liquid chromatography using platinum/poly(methyl violet) modified electrode. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.04.089] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Pérez-Ruiz T, Martínez-Lozano C, Sanz A, Galera R. An ultrasensitive method for the determination of thiouracil and phenylthiouracil using capillary zone electrophoresis and laser-induced fluorescence detection. Electrophoresis 2005; 26:2384-90. [PMID: 15895465 DOI: 10.1002/elps.200410252] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This paper reports the development of a method based on capillary electrophoresis with laser-induced fluorescence detection for the simultaneous determination of thiouracil (TU) and phenylthiouracil (PhTU) with high sensitivity (nanomolar range, i.e., attomoles detected). After derivatization with 5-iodoacetamidofluorescein, the analytes were separated by capillary zone electrophoresis using 20 mM phosphate buffer (pH 10.0) and quantified by fluorescence detection. The linearity range, precision, recovery, and detection limits were determined, and the method was shown to be applicable for the determination of TU and PhTU in spiked feed samples and urine.
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Affiliation(s)
- Tomás Pérez-Ruiz
- Department of Analytical Chemistry, Faculty of Chemistry, University of Murcia, Campus de Espinardo, Murcia, Spain.
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