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Analysis of Varietal Thiols in Sauvignon Blanc Wines—Optimization of a Solid-Phase Extraction Gas Chromatography Tandem Mass Spectrometry Method. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-021-02200-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Ahmed Z, Yaqoob M, Asghar M, Ali S, Munawar N, Achakzai AKK, Nabi A. Flow-Injection Lucigenin–Cu(III) Complex Chemiluminescence Determination of Cysteine and Glutathione in Pharmaceutical Formulations. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821040134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Tsiasioti A, Tzanavaras PD. Selective post-column derivatization coupled to cation exchange chromatography for the determination of histamine and its precursor histidine in fish and Oriental sauce samples. Food Chem 2021; 351:129351. [PMID: 33647687 DOI: 10.1016/j.foodchem.2021.129351] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/01/2022]
Abstract
Histamine is a biogenic amine that is formed from histidine by action of the enzyme histidine decarboxylase and can be toxic at high intakes. Thus, the quantification of these analytes in foods constitutes a significant axis of food safety. In this study we present the development, validation and application of a new method for the determination of histamine and its precursor histidine in fish products and oriental sauces. The analytes were separated rapidly through a cation exchange column using an acidic mobile phase (7 mmol L-1 nitric acid) and reacted downstream with o-phthalaldehyde in post-column mode in the absence of nucleophilic reagents. The derivatives were detected spectrofluorimetrically at λex/λem. = 360/440 nm. Following investigation of the chromatographic and post-column conditions, the method was validated as for its intended applications. The limits of detection were 0.16 and 0.17 μmol L-1 for histidine and histamine respectively (ca. 0.1 mg kg-1) and the precision was better than 5%. Various food samples were successfully analyzed without matrix interferences following minimal pretreatment. The percent recoveries ranged between 91.3 and 117.9%.
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Affiliation(s)
- Apostolia Tsiasioti
- Laboratory of Analytical Chemistry, School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, GR-54124, Greece
| | - Paraskevas D Tzanavaras
- Laboratory of Analytical Chemistry, School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, GR-54124, Greece.
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4
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Lopes S, Nikitin T, Fausto R. Structural, spectroscopic, and photochemical study of ethyl propiolate isolated in cryogenic argon and nitrogen matrices. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 241:118670. [PMID: 32679483 DOI: 10.1016/j.saa.2020.118670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
Ethyl propiolate (HC ≡ CCOOCH2CH3, EP) was studied experimentally by infrared spectroscopy in argon and nitrogen cryomatrices (15 K) and by quantum chemical calculations (at the DFT(B3LYP) and MP2 levels of theory). Calculations predict the existence of four conformers: two low-energy conformers (I and II) possessing the carboxylic moiety in the cis configuration (O=C-O-C dihedral equal to ~0°) and two higher-energy trans forms (O=C-O-C dihedral equal to ~180°; III and IV). The conformation of the ethyl ester group within each pair of conformers is either anti (C-O-C-C equal to 180°; in conformers I and III) or gauche (C-O-C-C equal to ±86.6° in II, and ± 92.5° in IV). The two low-energy cis conformers (I and II) were predicted to differ in energy by less than 2.5 kJ mol-1 and were shown to be present in the studied cryogenic matrices. Characteristic bands for each one of these conformers were identified in the infrared spectra of the matrix-isolated compound and assigned taking into account the results of normal coordinate analysis, which used the geometries and harmonic force constants obtained in the DFT calculations. The two trans conformers (III and IV) were estimated to be 17.5 kJ mol-1 higher in energy than the conformational ground state (form I) and were not observed experimentally. The unimolecular photochemistry of matrix-isolated EP (in N2 matrix) was also investigated. In situ irradiation with UV light (λ > 235 nm) leads mainly to decarbonylation of the compound, with generation of ethoxyethyne, which in a subsequent photoreaction generates ketene (plus ethene).
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Affiliation(s)
- S Lopes
- University of Coimbra, CQC, Department of Chemistry, 3004-535 Coimbra, Portugal.
| | - T Nikitin
- University of Coimbra, CQC, Department of Chemistry, 3004-535 Coimbra, Portugal; University of Coimbra, CFisUC, Department of Physics, 3004-516 Coimbra, Portugal
| | - Rui Fausto
- University of Coimbra, CQC, Department of Chemistry, 3004-535 Coimbra, Portugal.
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Manousi N, K. Zacharis C. Automated Post-Column Sample Manipulation Prior to Detection in Liquid Chromatography: A Review of Pharmaceutical and Bioanalytical Applications. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411015666190327170559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
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Automated post-column sample manipulation is undoubtedly one of the most challenging
approaches in liquid chromatography for the improvement of method selectivity and sensitivity. With
the post-column analyte derivatization being the most-abundant approach approach of this category,
other strategies typically comprise post-column infusion of internal standard or other reagents prior
to mass spectrometric detection to enhance the ionization efficiency of the analyte or to compensate
the ion suppression/enhancement.
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In this review, on-line post column methodologies focused on the quality control of pharmaceuticals
and biomedical applications will be presented and discussed. Emphasis will be given on the
automation capabilities of such systems.
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Affiliation(s)
- Natalia Manousi
- Analytical Development Laboratory, R&D API Operations, Pharmathen SA, 9th klm Thessaloniki-Thermi, Thessaloniki 57001, Greece
| | - Constantinos K. Zacharis
- Analytical Development Laboratory, R&D API Operations, Pharmathen SA, 9th klm Thessaloniki-Thermi, Thessaloniki 57001, Greece
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Ochiai N, Sasamoto K, Kishimoto T. Development of a Method for the Quantitation of Three Thiols in Beer, Hop, and Wort Samples by Stir Bar Sorptive Extraction with in Situ Derivatization and Thermal Desorption-Gas Chromatography-Tandem Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:6698-6706. [PMID: 26166150 DOI: 10.1021/acs.jafc.5b02298] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A method for analysis of hop-derived polyfunctional thiols, such as 4-sulfanyl-4-methylpentan-2-one (4S4M2Pone), 3-sulfanylhexan-1-ol (3SHol), and 3-sulfanylhexyl acetate (3SHA), in beer, hop water extract, and wort at nanogram per liter levels was developed. The method employed stir bar sorptive extraction with in situ derivatization (der-SBSE) using ethyl propiolate (ETP), followed by thermal desorption and gas chromatography-tandem mass spectrometry (TD-GC-MS/MS) with selected reaction monitoring (SRM) mode. A prior step involved structural identification of the ETP derivatives of the thiols by TD-GC-quadrupole-time-of-flight mass spectrometry with parallel sulfur chemiluminescence detection (Q-TOF-MS/SCD) after similar der-SBSE. The der-SBSE conditions of the ETP concentration, buffer concentration, salt addition, and extraction time profiles were investigated, and the performance of the method was demonstrated with spiked beer samples. The limits of detection (LODs) (0.19-27 ng/L) are below the odor threshold levels of all analytes. The apparent recoveries at 10-100 ng/L (99-101%) and the repeatabilities [relative standard deviation (RSD) of 1.3-7.2%; n = 6] are also good. The method was successfully applied to the determination of target thiols at nanogram per liter levels in three kinds of beer samples (hopped with Cascade, Citra, and Nelson Sauvin) and the corresponding hop water extracts and wort samples. There was a clear correlation between the determined values and the characteristics of citrus hop aroma for each sample.
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Affiliation(s)
- Nobuo Ochiai
- †GERSTEL K.K., 1-3-1 Nakane, Meguro-ku, Tokyo 152-0031, Japan
| | - Kikuo Sasamoto
- †GERSTEL K.K., 1-3-1 Nakane, Meguro-ku, Tokyo 152-0031, Japan
| | - Toru Kishimoto
- ‡Asahi Breweries, Limited, 1-21 Midori 1-chome, Moriya-shi, Ibaraki 302-0106, Japan
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Yin C, Huo F, Zhang J, Martínez-Máñez R, Yang Y, Lv H, Li S. Thiol-addition reactions and their applications in thiol recognition. Chem Soc Rev 2014; 42:6032-59. [PMID: 23703585 DOI: 10.1039/c3cs60055f] [Citation(s) in RCA: 374] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Because of the biological importance of thiols, the development of probes for thiols has been an active research area in recent years. In this review, we summarize the results of recent exciting reports regarding thiol-addition reactions and their applications in thiol recognition. The examples reported can be classified into four reaction types including 1,1, 1,2, 1,3, 1,4 addition reactions, according to their addition mechanisms, based on different Michael acceptors. In all cases, the reactions are coupled to color and/or emission changes, although some examples dealing with electrochemical recognition have also been included. The use of thiol-addition reactions is a very simple and straightforward procedure for the preparation of thiol-sensing probes.
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Affiliation(s)
- Caixia Yin
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
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Tzanavaras PD, Aristeridou M, Bald E, Głowacki R. Zone Fluidics Derivatization of Thiols Under Flow Conditions by 2-Chloro-1-methylquinolinium Tetrafluoroborate. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.834446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Liquid chromatography coupled to on-line post column derivatization for the determination of organic compounds: A review on instrumentation and chemistries. Anal Chim Acta 2013; 798:1-24. [DOI: 10.1016/j.aca.2013.07.032] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 07/07/2013] [Accepted: 07/11/2013] [Indexed: 11/23/2022]
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10
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Stepwise injection spectrophotometric determination of cysteine in biologically active supplements and fodders. Microchem J 2013. [DOI: 10.1016/j.microc.2013.04.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Herbst-Johnstone M, Piano F, Duhamel N, Barker D, Fedrizzi B. Ethyl propiolate derivatisation for the analysis of varietal thiols in wine. J Chromatogr A 2013; 1312:104-10. [PMID: 24034138 DOI: 10.1016/j.chroma.2013.08.066] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 08/16/2013] [Accepted: 08/16/2013] [Indexed: 10/26/2022]
Abstract
Varietal thiols [3-mercaptohexan-1-ol (3MH), 3-mercaptohexyl acetate (3MHA) and 4-mercapto-4-methylpentan-2-one (4MMP)] have been extensively studied in the recent literature. Nonetheless the hardest obstacle for research focussing on this class of compounds is the lack of quick, user-friendly and sensitive analytical methods. The current paper presents the use of ethyl propriolate (ETP) as a novel derivatising agent to quantify varietal thiols and the first time quantification of the thiol-ETP adducts via gas chromatography-mass spectrometry. Method optimisation including choice of the best SPE cartridge, derivatisation pH and adducts stability is presented. Validation of the method via stable isotope dilution was carried out. Detection limits in both model wine (4MMP 7.2ng/L, 3MHA 40.0ng/L and 3MH 91.2ng/L) and white wine (4MMP 24.5ng/L, 3MHA 120.9ng/L and 3MH 194.6ng/L) for the novel ETP-based method were lower than those obtained with the p-HMB method. Finally, 14 New Zealand Sauvignon blanc were analysed with both the new method and the organo-mercury based procure: good correlations were obtained for 3MH and 3MHA. Detection limits obtained with the new methods, its rapidity and reproducibility make this protocol perfectly suitable for oenological purposes.
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Affiliation(s)
- Mandy Herbst-Johnstone
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
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12
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Tsardaka EC, Zacharis CK, Tzanavaras PD, Zotou A. Determination of glutathione in baker's yeast by capillary electrophoresis using methyl propiolate as derivatizing reagent. J Chromatogr A 2013; 1300:204-8. [DOI: 10.1016/j.chroma.2013.05.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 04/14/2013] [Accepted: 05/02/2013] [Indexed: 12/11/2022]
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13
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Development and validation of a simple and sensitive HPLC-UV method for the determination of captopril in human plasma using a new derivatizing reagent 2-naphthyl propiolate. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 932:144-51. [PMID: 23831707 DOI: 10.1016/j.jchromb.2013.06.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 05/15/2013] [Accepted: 06/12/2013] [Indexed: 11/23/2022]
Abstract
In this study, a simple, sensitive and reliable HPLC-UV method applying rapid sample preparation technique for the determination of captopril in human plasma was developed and validated. The method is based on pre-column derivatization of captopril and 2-propene-1-thiol (internal standard) with a new reagent 2-naphthyl propiolate. Sample clean-up, derivatization and extraction were carried out in two steps, totally less than 30min. The extracts were chromatographed on a C18 column (5μm, 150mm×4.6mmi.d.). The mobile phase consisted of methanol (75%, v/v) and phosphate buffer (25%, pH=8, 0.01M). UV detection was performed at 290nm. To obtain the best reaction yield, the factors that could influence the derivatization process, including the concentration of derivatization reagent, pH of sample solution and temperature were investigated in detail and optimized using Box-Behnken response surface methodology. Under optimized conditions the average extraction recovery of captopril and internal standard were >86%. The achieved lower limit of quantification (LLOQ) was 3ng/mL; the assay exhibited a linear dynamic range of 3-2000ng/mL with correlation coefficient (r(2)) of ≥0.99. The precision was satisfactory in the whole calibration range with RSD of 5.9-12.4% (accuracy: from 97.5% to 93.6%) and of 6.4-12.8% (accuracy: from 97.3% to 95.2%) for intra- and inter-assay, respectively. The method stability was confirmed in a series of experiments including: freeze-thaw, short- and long-term stability testing. Lastly, the developed method was successfully applied to the bioequivalence study of captopril administrated as a single oral dose (50mg) to 12 healthy male volunteers.
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14
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Hun X, Sun W, Zhu H, Du F, Liu F, Xu Y, He Y. Design of electrochemical detection of thiols based on the cleavage of the disulfide bond coupled with thionine modified gold nanoparticle-assisted amplification. Chem Commun (Camb) 2013; 49:9603-5. [DOI: 10.1039/c3cc44487b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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15
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On-line cleavage of disulfide bonds by soluble and immobilized tris-(2-carboxyethyl)phosphine using sequential injection analysis. Talanta 2012; 96:21-5. [DOI: 10.1016/j.talanta.2011.10.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 10/13/2011] [Accepted: 10/28/2011] [Indexed: 11/20/2022]
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16
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Mansour FR, Danielson ND. Separation methods for captopril in pharmaceuticals and biological fluids. J Sep Sci 2012; 35:1213-26. [DOI: 10.1002/jssc.201200057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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The new approach for captopril detection employing triangular gold nanoparticles-catalyzed luminol chemiluminescence. Talanta 2012; 89:142-8. [DOI: 10.1016/j.talanta.2011.12.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2011] [Revised: 11/21/2011] [Accepted: 12/01/2011] [Indexed: 11/20/2022]
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18
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Karakosta TD, Tzanavaras PD, Themelis DG. Automated pre-column derivatization of thiolic fruit-antibrowning agents by sequential injection coupled to high-performance liquid chromatography using a monolithic stationary phase and an in-loop stopped-flow approach. J Sep Sci 2011; 34:2240-6. [DOI: 10.1002/jssc.201100184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 04/01/2011] [Accepted: 04/01/2011] [Indexed: 11/07/2022]
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Zacharis CK, Tzanavaras PD, Zotou A. Ethyl propiolate as a post-column derivatization reagent for thiols: development of a green liquid chromatographic method for the determination of glutathione in vegetables. Anal Chim Acta 2011; 690:122-8. [PMID: 21414445 DOI: 10.1016/j.aca.2011.02.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 01/31/2011] [Accepted: 02/01/2011] [Indexed: 11/19/2022]
Abstract
The present study reports the development, validation and application of a new green liquid chromatographic method for the determination of glutathione (GSH) in vegetable samples. In this work we introduce-for the first time-ethyl propiolate (EP) as an advantageous post-column derivatization reagent for thiolic compounds. GSH (t(R)=6.60 min) and N-acetylcysteine (NAC, internal standard) (t(R)=11.80 min) were separated efficiently from matrix endogenous compounds by using a 100% aqueous mobile phase (0.1%, v/v CH(3)COOH in 1 mmol L(-1) EDTA, Q(V)=0.5 mL min(-1)) and a Prevail(®) reversed phase column that offers the advantage of stable packing material in aqueous mobile phases. The parameters of the post-column reaction (pH, amount concentration of the reagent, flow rates, length of the reaction coil and temperature) were studied. The linear determination range for GSH was 1-200 μmol L(-1) and the LOD was 0.1 μmol L(-1) (S/N=3). Total endogenous GSH was determined in broccoli, potato, asparagus and Brussels sprouts using the standards addition approach. The accuracy was evaluated by both recovery experiments (R=91-110%) and comparison to an o-phthalaldehyde/glycine corroborative post-column derivatization fluorimetric method.
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Affiliation(s)
- Constantinos K Zacharis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotelian University of Thessaloniki, GR-54124 Thessaloniki, Greece
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20
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Tzanavaras PD. Automated Determination of Captopril by Flow and Sequential Injection Analysis: A Review. ANAL LETT 2011. [DOI: 10.1080/00032719.2010.500792] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Tzanavaras PD, Tsiomlektsis A, Zacharis CK. Derivatization of thiols under flow conditions using two commercially available propiolate esters. J Pharm Biomed Anal 2010; 53:790-4. [DOI: 10.1016/j.jpba.2010.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 05/29/2010] [Accepted: 06/01/2010] [Indexed: 11/25/2022]
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22
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Tzanavaras PD, Zacharis CK, Themelis DG. On-Line Derivatization ofN-acetylcysteine Using Ethyl-Propiolate as a Novel Advantageous Reagent and Sequential Injection Analysis. ANAL LETT 2010. [DOI: 10.1080/00032710903502207] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Chipuk JE, Gelb MH, Brodbelt JS. Rapid and selective screening for sulfhydryl analytes in plasma and urine using surface-enhanced transmission mode desorption electrospray ionization mass spectrometry. Anal Chem 2010; 82:4130-9. [PMID: 20402469 PMCID: PMC2872998 DOI: 10.1021/ac100242b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nylon mesh substrates were derivatized to include VICAT(SH), a biotinylated reagent that contains both a photolabile linking group and a thiol specific capture agent. The enhanced mesh substrates were then used to capture sulfhydryl analytes directly from urine and plasma samples via covalent reaction between the reactive thiols of the analytes and the iodoacetaminyl unit of VICAT(SH). Photocleavage of the labile linker was followed by direct analysis of the mesh surface via transmission mode desorption electrospray ionization (TM-DESI). This chemoselective capture method promoted enrichment of sulfhydryl analytes and reduced matrix interferences, thereby resulting in increased analytical performance of surface enhanced TM-DESI-MS when compared to standard DESI-MS. The present work describes the manufacture of the derivatized mesh substrates and the quality control assessments made during the manufacturing process, the optimization of the chemoselective capture method, and results of experiments pertinent to biological applications. Integration of the chemoselective capture materials with ambient ionization and tandem mass spectrometry results in a powerful combination of speed and selectivity for targeted analyte screening.
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Affiliation(s)
- Joseph E. Chipuk
- Department of Chemistry and Biochemistry, University of Texas at Austin, University Station A5300, Austin, Texas 78712
| | | | - Jennifer S. Brodbelt
- Department of Chemistry and Biochemistry, University of Texas at Austin, University Station A5300, Austin, Texas 78712
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24
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Huo FJ, Sun YQ, Su J, Chao JB, Zhi HJ, Yin CX. Colorimetric Detection of Thiols Using a Chromene Molecule. Org Lett 2009; 11:4918-21. [DOI: 10.1021/ol901951h] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Fang-Jun Huo
- Research Institute of Applied Chemistry (RIAC), Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science (IMS), Shanxi University, Taiyuan, 030006, China
| | - Yuan-Qiang Sun
- Research Institute of Applied Chemistry (RIAC), Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science (IMS), Shanxi University, Taiyuan, 030006, China
| | - Jing Su
- Research Institute of Applied Chemistry (RIAC), Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science (IMS), Shanxi University, Taiyuan, 030006, China
| | - Jian-Bin Chao
- Research Institute of Applied Chemistry (RIAC), Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science (IMS), Shanxi University, Taiyuan, 030006, China
| | - Hai-Juan Zhi
- Research Institute of Applied Chemistry (RIAC), Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science (IMS), Shanxi University, Taiyuan, 030006, China
| | - Cai-Xia Yin
- Research Institute of Applied Chemistry (RIAC), Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science (IMS), Shanxi University, Taiyuan, 030006, China
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