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Li X, Wu J, Zhu X. One-step hydrothermal preparation of chiral carbon quantum dots and enantioselective sensing of glutamine enantiomeric isomers. LUMINESCENCE 2023. [PMID: 38041512 DOI: 10.1002/bio.4639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/06/2023] [Accepted: 11/12/2023] [Indexed: 12/03/2023]
Abstract
A novel method for chiral identification of glutamine enantiomers based on chiral carbon quantum dots (cCQDs) fluorescent probes. cCQDs were prepared using a one-step hydrothermal method with L-tryptophan as the carbon source and chiral source, producing spherical nanoparticles exhibiting a blue colour luminescence. The fluorescence intensity (F) of cCQDs was enhanced or quenched following the addition of chiral enantiomeric glutamine (L/D-Gln), and therefore cCQDs, as a fluorescence probe, could be used for enantioselective sensing of the L/D-Gln. The fluorescence enhancement value (∆FE ) exhibited good linearity with L-Gln concentration in the range 0.23-10.00 mM, and the limit of detection was 0.14 mM. The fluorescence quenching value (∆FQ ) showed a good linear relationship with D-Gln concentration in the range 0.29-10.00 mM, and the detection limit was 0.18 mM. The mechanism of fluorescence enhancement/quenching was explored by molecular modelling and the type of quenching. The method was applied to the determination of L-Gln content in real samples, and the recovery rate was satisfactory. This study provided a novel approach for the synthesis of cCQDs and the recognition of amino acid enantiomers.
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Affiliation(s)
- Xiang Li
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, China
| | - Jun Wu
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, China
| | - Xiashi Zhu
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, China
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2
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Garcia A, Serra C, Remaury QB, Garcia AD, Righezza M, Meinert C, Poinot P, Danger G. Gas chromatography coupled-to Fourier transform orbitrap mass spectrometer for enantioselective amino acid analyses: Application to pre-cometary organic analog. J Chromatogr A 2023; 1704:464118. [PMID: 37315448 DOI: 10.1016/j.chroma.2023.464118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/17/2023] [Accepted: 05/31/2023] [Indexed: 06/16/2023]
Abstract
Gas chromatography (GC) is a separation technique commonly developed for targeted in situ analyses in planetary space missions. It is coupled with low-resolution mass spectrometry to obtain additional structural information and allow compound identification. However, ground-based analyses of extraterrestrial samples have shown the presence of large molecular diversities. For future targeted in situ analyses, it is therefore essential to develop new technologies. High resolution mass spectrometry (HRMS) is currently being spatialized using FT-orbitrap-MS technology. In this contribution, the coupling of gas chromatography with FT-orbitrap-MS is studied for targeted amino acid analyses. The method for enantioselective separation of amino acids was optimized on a standard mixture comprising 47 amino acid enantiomers. Different ionization modes were optimized, chemical ionization with three different reactive gasses (NH3, CH4 and NH3/CH4) and electron impact ionization at different electron energies. Single ion and full scan monitoring modes were compared, and detection and quantification limits were estimated by internal calibration under the optimized conditions. The GC-FT-orbitrap-MS demonstrated its ability to separate 47 amino acid enantiomers with minimal co-elution. Furthermore, due to the high mass resolution and accuracy of FT-orbitrap-MS, with mass extraction, the S/N is close to zero, allowing average LOD values of 10⁻7 M, orders of magnitude lower than conventional GC-MS techniques. Finally, these conditions were tested for enantioselective analysis of amino acids on an analog of a pre-cometary organic material showing similarities to that of extraterrestrial materials.
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Affiliation(s)
- A Garcia
- Aix-Marseille Université, CNRS, Institut Origines, Laboratoire PIIM, Marseille, France
| | - C Serra
- Aix-Marseille Université, CNRS, Institut Origines, Laboratoire PIIM, Marseille, France; UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), E.BiCoM Team, University of Poitiers, 4 rue Michel-Brunet, TSA 51106, 86073, Poitiers, Cedex 9, France
| | - Q Blancart Remaury
- UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), E.BiCoM Team, University of Poitiers, 4 rue Michel-Brunet, TSA 51106, 86073, Poitiers, Cedex 9, France
| | - A D Garcia
- Université Côte d'Azur, Institut de Chimie de Nice, UMR 7272 CNRS, F-06108 Nice, France
| | - M Righezza
- Aix-Marseille Université, CNRS, Institut Origines, Laboratoire PIIM, Marseille, France
| | - C Meinert
- Université Côte d'Azur, Institut de Chimie de Nice, UMR 7272 CNRS, F-06108 Nice, France
| | - P Poinot
- UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), E.BiCoM Team, University of Poitiers, 4 rue Michel-Brunet, TSA 51106, 86073, Poitiers, Cedex 9, France
| | - G Danger
- Aix-Marseille Université, CNRS, Institut Origines, Laboratoire PIIM, Marseille, France; Institut Universitaire de France (IUF), France.
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3
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Fluorometric/electrochemical dual-channel sensors based on carbon quantum dots for the detection and information anti-counterfeiting. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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4
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Zhang N, Tian M, Liu X, Yang L. Enzyme assay for d -amino acid oxidase using optically gated capillary electrophoresis-laser induced fluorescence detection. J Chromatogr A 2018; 1548:83-91. [DOI: 10.1016/j.chroma.2018.03.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/05/2018] [Accepted: 03/13/2018] [Indexed: 10/17/2022]
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5
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Myrgorodska I, Meinert C, Martins Z, le Sergeant d’Hendecourt L, Meierhenrich UJ. Quantitative enantioseparation of amino acids by comprehensive two-dimensional gas chromatography applied to non-terrestrial samples. J Chromatogr A 2016; 1433:131-6. [DOI: 10.1016/j.chroma.2016.01.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/05/2016] [Accepted: 01/06/2016] [Indexed: 11/28/2022]
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6
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Gas chromatographic separation of stereoisomers of non-protein amino acids on modified γ-cyclodextrin stationary phase. J Chromatogr A 2015; 1411:101-9. [DOI: 10.1016/j.chroma.2015.07.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 07/20/2015] [Accepted: 07/22/2015] [Indexed: 11/22/2022]
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7
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Lorenzo MP, Dudzik D, Varas E, Gibellini M, Skotnicki M, Zorawski M, Zarzycki W, Pellati F, García A. Optimization and validation of a chiral GC-MS method for the determination of free D-amino acids ratio in human urine: application to a gestational diabetes mellitus study. J Pharm Biomed Anal 2015; 107:480-7. [PMID: 25679092 DOI: 10.1016/j.jpba.2015.01.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 01/06/2015] [Accepted: 01/07/2015] [Indexed: 12/31/2022]
Abstract
Gestational Diabetes Mellitus (GDM) is defined as glucose intolerance with onset or first recognition during pregnancy. It is affecting approximately up to 14% of all pregnancies with an increasing tendency. GDM has been related to relevant short-term and long-term health complications for both mother and offspring. Recent studies strongly emphasized the role of several essential amino acids in the pathogenesis of obesity and highlighted their strong correlation with insulin resistance, but there are no references related to modifications in D-AAs in biological fluids. As D-AA elimination proceeds mainly by renal excretion, urine was the selected sample to evaluate the alterations in free D-AAs ratio in a GDM study. Only 1 mL of first void urine or standard solution was required for purification, by using a Discovery DSC-SCX SPE cartridge (500 mg/3 mL) and derivatization into their N(O)-pentafluoropropionyl amino acid 2-propyl esters. Enantiomeric separation was carried out by GC-MS on a Chirasil-L-Val N-propionyl-L-valine-tert-butylamide polysiloxane fused-silica capillary column (25 m×0.25 mm I.D., 0.12 μm film thickness, Agilent Technologies, Waldbronn, Germany), under programmed temperature elution. Detection was performed with an ion trap mass analyzer, operating in the full scan mode in the m/z 50-350 range. 14 pairs of derivatives of D-and L-AAs were separated. The steps of sample preparation, derivatization and GC-MS conditions were optimized for both urine and standards. Several conditions affecting the SPE procedure, such as sorbent mass/volume ratio of the cartridge, sample dilution and pH, were optimized. Volume of reagents and solvents and reaction temperature and time were also tested for the derivatization. Regarding the GC-MS parameters, split ratio, temperature program and mass range were optimized. The final method was validated in terms of linearity, sensitivity, accuracy and precision for D-Ala, D-Pro, D-Ser, D-Met, D-Phe, D-Glu, D-Orn and D-Lys. Identification of AAs in urine samples was based on retention time and mass spectra. Urine from 20 women with GDM and 20 pregnant women with normal glucose tolerance (after 2-h 75-g oral glucose tolerance test), matched according to the week of gestation and age (22-28 week of gestation and age 24-37 years), were enrolled into the study. %D-Relative amounts were determined for Ala, Val, Thr, Ser, Leu, Asx (Asp+Asn), Glx (Glu+Gln), Met, Phe, Tyr, Orn and Lys. Statistically significant differences (p<0.05) were observed only for D-Phe and higher values were found in the GDM group. It is possible that D-Phe could be involved in metabolic/signaling pathways to compensate early stages of insulin resistance, although further work is necessary to confirm this hypothesis.
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Affiliation(s)
- Ma Paz Lorenzo
- Center for Metabolomics and Bioanalysis (CEMBIO), Facultad de Farmacia, Universidad CEU San Pablo, Madrid, Spain
| | - Danuta Dudzik
- Center for Metabolomics and Bioanalysis (CEMBIO), Facultad de Farmacia, Universidad CEU San Pablo, Madrid, Spain; Clinical Department of Perinatology, Public Clinic Hospital, Medical University of Bialystok, Bialystok, Poland
| | - Elena Varas
- Center for Metabolomics and Bioanalysis (CEMBIO), Facultad de Farmacia, Universidad CEU San Pablo, Madrid, Spain
| | - Manuel Gibellini
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 183, 41125 Modena, Italy
| | - Mariusz Skotnicki
- Clinical Department of Perinatology, Public Clinic Hospital, Medical University of Bialystok, Bialystok, Poland
| | - Marcin Zorawski
- Department of Pharmacology, Medical University of Bialystok, Bialystok, Poland
| | - Wieslaw Zarzycki
- Clinical Department of Endocrinology, Diabetology and Internal Diseases, Public Clinic Hospital, Medical University of Bialystok, Bialystok, Poland
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 183, 41125 Modena, Italy
| | - Antonia García
- Center for Metabolomics and Bioanalysis (CEMBIO), Facultad de Farmacia, Universidad CEU San Pablo, Madrid, Spain.
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Kim BH, Lee SU, Moon DC. ENANTIOMER SEPARATION OF N-t-BOC AND N-CBZ α-AMINO ACIDS AND THEIR ESTERS ON POLYSACCHARIDE DERIVED CHIRAL STATIONARY PHASES. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.704611] [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]
Affiliation(s)
- Byoung-Hyoun Kim
- a Analytical Science, LG Chemical Research Park, LG Chem. Ltd. , Daejeon , South Korea
| | - Sang Uck Lee
- b Department of Chemistry , University of Ulsan , Ulsan , South Korea
| | - Dong Cheul Moon
- c College of Pharmacy, Chungbuk National University , Cheongju , South Korea
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Kalhor H, Ameli A, Alizadeh N. Electrochemically controlled solid-phase micro-extraction of proline using a nanostructured film of polypyrrole, and its determination by ion mobility spectrometry. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-0984-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Enantioselective separation of amino acids as biomarkers indicating life in extraterrestrial environments. Anal Bioanal Chem 2013; 405:7931-40. [DOI: 10.1007/s00216-013-6915-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/04/2013] [Accepted: 03/11/2013] [Indexed: 10/27/2022]
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11
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Affiliation(s)
- Timothy J. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210, United States
| | - Karen D. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210, United States
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Gas chromatographic enantioseparation of derivatized α-amino acids on chiral stationary phases—Past and present. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3122-40. [DOI: 10.1016/j.jchromb.2011.04.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 03/28/2011] [Accepted: 04/01/2011] [Indexed: 11/23/2022]
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13
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Chiral separations in normal-phase liquid chromatography: Enantioselectivity of recently commercialized polysaccharide-based selectors. Part II. Optimization of enantioselectivity. J Pharm Biomed Anal 2011; 56:521-37. [DOI: 10.1016/j.jpba.2011.06.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 05/23/2011] [Accepted: 06/16/2011] [Indexed: 11/24/2022]
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14
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Müller CE, Gerecke AC, Alder AC, Scheringer M, Hungerbühler K. Identification of perfluoroalkyl acid sources in Swiss surface waters with the help of the artificial sweetener acesulfame. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:1419-1426. [PMID: 21310517 DOI: 10.1016/j.envpol.2010.12.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 12/20/2010] [Accepted: 12/23/2010] [Indexed: 05/30/2023]
Abstract
Anthropogenic perfluorinated compounds (PFCs), especially the perfluoroalkyl acids (PFAAs) are ubiquitously found in surface waters around the globe. Emissions from households, industries and also atmospheric transport/deposition are discussed as the possible sources. In this study, these sources are evaluated using Switzerland as the study area. Forty-four surface water locations in different rivers and an Alpine lake were investigated for 14 PFAAs, four precursors and acesulfame, an artificial sweetener used as a population marker. Concentrations of individual PFAAs were generally low, between 0.02 and 10 ng/L. Correlation analysis showed that some PFAAs concentrations correlated well with population and less with catchment area, indicating that emissions from population, i.e., from consumer products, is the most important source to surface waters in Switzerland. The correlation with the population marker acesulfame confirmed this observation but highlighted also a few elevated PFAA levels, some of which could be attributed to industrial emissions.
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Affiliation(s)
- Claudia E Müller
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland.
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15
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Pietrogrande MC, Bacco D, Marchetti N, Mercuriali M, Zanghirati G. 2D autocovariance function for comprehensive analysis of two-way GC-MS data matrix: application to environmental samples. Talanta 2010; 83:1225-32. [PMID: 21215857 DOI: 10.1016/j.talanta.2010.07.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Revised: 07/19/2010] [Accepted: 07/24/2010] [Indexed: 10/19/2022]
Abstract
This paper describes a signal processing method for comprehensive analysis of the large data set generated by hyphenated GC-MS technique. It is based on the study of the 2D autocovariance function (2D-EACVF) computed on the raw GC-MS data matrix, extending the procedure previously developed for 1D to 2D signals. It appears specifically promising for GC-MS investigation, in particular to single out ordered patterns in complex data: such patterns can be simply identified by visual inspection from deterministic peaks in the 2D-EACVF plot. A case of order along the retention time axis (x=t(R)) is represented by a horizontal sequence of peaks, located at the same interdistance Δt(R)=b(x), e.g., b(x) is the CH(2) retention time increment between subsequent terms of an homologous series. The order along the fragment mass axis (y=m/z) contains information on analyte fragmentation patterns. Deterministic peaks appear in the 2D-EACVF plot at Δm/z values corresponding to the most abundant ion fragments - dominating fragments in MS spectrum - or to ions generated by repetitive loss of the same ion fragment, i.e., Δm/z=14 amu produced by the [CH(2)]() group loss in n-alkanes. Method applicability was tested by processing GC-MS data of organic extracts of atmospheric aerosol samples: attention is focused on identifying and characterizing homologous series of organics, i.e., n-alkanes and n-alkanoic acids, since they are considered molecular tracers able to track the origin and fate of different organics in the environment.
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