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Giannelli Moneta B, Aita SE, Barbaro E, Capriotti AL, Cerrato A, Laganà A, Montone CM, Piovesana S, Scoto F, Barbante C, Cavaliere C. Untargeted analysis of environmental contaminants in surface snow samples of Svalbard Islands by liquid chromatography-high resolution mass spectrometry. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159709. [PMID: 36309265 DOI: 10.1016/j.scitotenv.2022.159709] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/24/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
In recent years, there is increasing attention on the contaminants of emerging concern (CECs), which include plasticizers, flame retardants, industrial chemicals, pharmaceuticals, and personal care products, since they have been detected even far away from pollution sources. The polar regions are not exempt from the presence of anthropogenic contaminants, and they are employed as a model for understanding the pollutant fate and impact. During the 2021 spring campaign, sixteen surface snow samples were collected close to the research station of Ny-Ålesund located on the Spitsbergen Island of the Norwegian Svalbard Archipelago. The samples were extracted by solid-phase extraction and analyzed by liquid chromatography-high-resolution tandem mass spectrometry (LC-HRMS/MS) following an untargeted approach. Compound tentative identification was obtained with the aid of the software Compound Discoverer, using both mass spectral database search and manual validation. Among the 114 compounds identified with a high confidence level in the snow samples, >80 have some commercial or industrial use (drugs, plasticizers, fragrances, etc.), therefore they could be of anthropogenic origin. Nonetheless, a clear contamination trend did not appear in the snow samples collected on eight different days during one month. The comparison with aerosol samples collected in the same area did not help identifying the source, either, since only a few compounds were in common, and they were mainly of natural origin. As such, the analysis of aerosol sample did not support possible long-range transport, also considering that compounds were detected mostly in the coarse fraction.
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Affiliation(s)
| | - Sara Elsa Aita
- Department of Chemistry, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy.
| | - Elena Barbaro
- Institute of Polar Sciences-CNR, University of Venice, via Torino, 155, 30172 Venice-Mestre, Italy; Department of Environmental Sciences, Informatics & Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice-Mestre, Italy.
| | - Anna Laura Capriotti
- Department of Chemistry, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy.
| | - Andrea Cerrato
- Department of Chemistry, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy.
| | - Aldo Laganà
- Department of Chemistry, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy.
| | - Carmela Maria Montone
- Department of Chemistry, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy.
| | - Susy Piovesana
- Department of Chemistry, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy.
| | - Federico Scoto
- Institute of Atmospheric Sciences and Climate, ISAC-CNR, S.P Lecce-Monteroni km 1.2, 73100 Lecce, Italy.
| | - Carlo Barbante
- Institute of Polar Sciences-CNR, University of Venice, via Torino, 155, 30172 Venice-Mestre, Italy; Department of Environmental Sciences, Informatics & Statistics, University Ca' Foscari of Venice, Via Torino 155, 30172 Venice-Mestre, Italy.
| | - Chiara Cavaliere
- Department of Chemistry, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy.
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Patriarca C, Bergquist J, Sjöberg PJR, Tranvik L, Hawkes JA. Online HPLC-ESI-HRMS Method for the Analysis and Comparison of Different Dissolved Organic Matter Samples. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:2091-2099. [PMID: 29241333 DOI: 10.1021/acs.est.7b04508] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Natural dissolved organic matter (DOM) is an ultracomplex mixture that is essential to global carbon cycling but is poorly understood because of its complexity. The most powerful tool for the DOM characterization is high-resolution mass spectrometry (HRMS) generally combined to direct infusion (DI) as sample introduction. Liquid chromatography (LC) represents a compelling alternative to DI; however, state-of-the-art techniques involve only offline LC-HRMS approaches, which have important logistical drawbacks that make DOM analysis more challenging. This study introduces a new method based on online coupling of liquid chromatography to high resolution mass spectrometry, able to overcome the disadvantages of usual approaches. It is characterized by high reproducibility (% Bray-Curtis dissimilarity among replicates ≈ 2.5%), and it reduces transient complexity and contaminant interferences, thus increasing the signal-to-noise ratio (S/N), leading to the identification of an overall larger number of formulas in the mixture. Moreover, the application of an in silico fractionation prior to the statistical analysis allows an easy, flexible, fast, and detailed comparison of DOM samples from a variety of sources with a single chromatographic run.
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Affiliation(s)
- Claudia Patriarca
- Department of Chemistry - BMC, Analytical Chemistry, Uppsala University , Uppsala 75124, Sweden
| | - Jonas Bergquist
- Department of Chemistry - BMC, Analytical Chemistry, Uppsala University , Uppsala 75124, Sweden
| | - Per J R Sjöberg
- Department of Chemistry - BMC, Analytical Chemistry, Uppsala University , Uppsala 75124, Sweden
| | - Lars Tranvik
- Department of Ecology and Genetics, Limnology, Uppsala University , Uppsala 75236, Sweden
| | - Jeffrey A Hawkes
- Department of Chemistry - BMC, Analytical Chemistry, Uppsala University , Uppsala 75124, Sweden
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Eysseric E, Barry K, Beaudry F, Houde M, Gagnon C, Segura PA. Application of Spectral Accuracy to Improve the Identification of Organic Compounds in Environmental Analysis. Anal Chem 2017; 89:9805-9813. [DOI: 10.1021/acs.analchem.7b01761] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Emmanuel Eysseric
- Department
of Chemistry, Université de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada
| | - Killian Barry
- Department
of Chemistry, Université de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada
| | - Francis Beaudry
- Groupe
de Recherche en Pharmacologie Animal du Québec (GREPAQ), Department
of Veterinary Biomedicine, Université de Montréal, Saint-Hyacinthe, Quebec J2S 2M2, Canada
| | - Magali Houde
- Environment and Climate Change Canada, Montreal, Quebec H2Y 2E7, Canada
| | - Christian Gagnon
- Environment and Climate Change Canada, Montreal, Quebec H2Y 2E7, Canada
| | - Pedro A. Segura
- Department
of Chemistry, Université de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada
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Andra SS, Austin C, Patel D, Dolios G, Awawda M, Arora M. Trends in the application of high-resolution mass spectrometry for human biomonitoring: An analytical primer to studying the environmental chemical space of the human exposome. ENVIRONMENT INTERNATIONAL 2017; 100:32-61. [PMID: 28062070 PMCID: PMC5322482 DOI: 10.1016/j.envint.2016.11.026] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 11/23/2016] [Accepted: 11/27/2016] [Indexed: 05/05/2023]
Abstract
Global profiling of xenobiotics in human matrices in an untargeted mode is gaining attention for studying the environmental chemical space of the human exposome. Defined as the study of a comprehensive inclusion of environmental influences and associated biological responses, human exposome science is currently evolving out of the metabolomics science. In analogy to the latter, the development and applications of high resolution mass spectrometry (HRMS) has shown potential and promise to greatly expand our ability to capture the broad spectrum of environmental chemicals in exposome studies. HRMS can perform both untargeted and targeted analysis because of its capability of full- and/or tandem-mass spectrum acquisition at high mass accuracy with good sensitivity. The collected data from target, suspect and non-target screening can be used not only for the identification of environmental chemical contaminants in human matrices prospectively but also retrospectively. This review covers recent trends and advances in this field. We focus on advances and applications of HRMS in human biomonitoring studies, and data acquisition and mining. The acquired insights provide stepping stones to improve understanding of the human exposome by applying HRMS, and the challenges and prospects for future research.
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Affiliation(s)
- Syam S Andra
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Christine Austin
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Dhavalkumar Patel
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Georgia Dolios
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Mahmoud Awawda
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Manish Arora
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Hawkes JA, Dittmar T, Patriarca C, Tranvik L, Bergquist J. Evaluation of the Orbitrap Mass Spectrometer for the Molecular Fingerprinting Analysis of Natural Dissolved Organic Matter. Anal Chem 2016; 88:7698-704. [PMID: 27400998 DOI: 10.1021/acs.analchem.6b01624] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We investigated the application of the LTQ-Orbitrap mass spectrometer (LTQ-Velos Pro, Thermo Fisher) for resolving complex mixtures of natural aquatic dissolved organic matter (DOM) and compared this technique to the more established state-of-the-art technique, Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS, Bruker Daltonics), in terms of the distribution of molecular masses detected and the reproducibility of the results collected. The Orbitrap was capable of excellent reproducibility: Bray-Curtis dissimilarity between duplicate measurements was 2.85 ± 0.42% (mean ± standard deviation). The Orbitrap was also capable of the detection of most major ionizable organic molecules in typical aquatic mixtures, with the exception of most sulfur and phosphorus containing masses. This result signifies that the Orbitrap is an appropriate technique for the investigation of very subtle biogeochemical processing of bulk DOM. The lower costs (purchase and maintenance) and wider availability of Orbitrap mass spectrometers in university departments means that the tools necessary for research into DOM processing at the molecular level should be accessible to a much wider group of scientists than before. The main disadvantage of the technique is that substantially fewer molecular formulas can be resolved from a complex mixture (roughly one third as many), meaning some loss of information. In balance, most biogeochemical studies that aim at molecularly fingerprinting the source of natural DOM could be satisfactorily carried out with Orbitrap mass spectrometry. For more targeted metabolomic studies where individual compounds are traced through natural systems, FTICR-MS remains advantageous.
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Affiliation(s)
- Jeffrey A Hawkes
- Analytical Chemistry, Department of Chemistry - BMC, Uppsala University , 751 24 Uppsala, Sweden
| | - Thorsten Dittmar
- Research Group for Marine Geochemistry, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg , 26129 Oldenburg, Germany
| | - Claudia Patriarca
- Analytical Chemistry, Department of Chemistry - BMC, Uppsala University , 751 24 Uppsala, Sweden
| | - Lars Tranvik
- Department of Limnology, Uppsala University , 752 36 Uppsala, Sweden
| | - Jonas Bergquist
- Analytical Chemistry, Department of Chemistry - BMC, Uppsala University , 751 24 Uppsala, Sweden
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6
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Herrero P, Cortés-Francisco N, Borrull F, Caixach J, Pocurull E, Marcé RM. Comparison of triple quadrupole mass spectrometry and Orbitrap high-resolution mass spectrometry in ultrahigh performance liquid chromatography for the determination of veterinary drugs in sewage: benefits and drawbacks. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:585-96. [PMID: 25044843 DOI: 10.1002/jms.3377] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 04/09/2014] [Accepted: 04/11/2014] [Indexed: 05/21/2023]
Abstract
This paper presents a comparison of triple quadrupole tandem mass spectrometry (MS/MS) and Orbitrap high-resolution mass spectrometry (HRMS) combined to ultrahigh performance liquid chromatography for the determination of glucocorticoids and polyether ionophores in sewage, in order to show the major benefits and drawbacks for each mass spectrometry analyser. Overall, HRMS measurements have enhanced performance in terms of confirmatory capabilities than MS/MS measurements. Moreover, similar limits of quantification, limits of detection, linear range and repeatability for glucocorticoids with both the MS/MS and HRMS methods were compared, but in the case of polyether ionophores, slightly better limits of detection and limits of quantification were obtained with the HRMS method because of the high sensitivity obtained when diagnostic ions are used for quantification instead of selected reaction monitoring transitions for these compounds. The two methods have been applied to the analysis of several influent and effluent sewage samples from sewage treatment plants located in the Tarragona region (Catalonia, Spain), showing an excellent correlation between the two methods.
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Affiliation(s)
- P Herrero
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Sescelades Campus, Marcel·lí Domingo, s/n, 43007, Tarragona, Spain
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Knolhoff AM, Callahan JH, Croley TR. Mass accuracy and isotopic abundance measurements for HR-MS instrumentation: capabilities for non-targeted analyses. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:1285-1294. [PMID: 24729191 DOI: 10.1007/s13361-014-0880-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 03/05/2014] [Accepted: 03/10/2014] [Indexed: 06/03/2023]
Abstract
The development of automated non-targeted workflows for small molecule analyses is highly desirable in many areas of research and diagnostics. Sufficient mass and chromatographic resolution is necessary for the detectability of compounds and subsequent componentization and interpretation of ions. The mass accuracy and relative isotopic abundance are critical in correct molecular formulae generation for unknown compounds. While high-resolution instrumentation provides accurate mass information, sample complexity can greatly influence data quality and the measurement of compounds of interest. Two high-resolution instruments, an Orbitrap and a Q-TOF, were evaluated for mass accuracy and relative isotopic abundance with various concentrations of a standard mixture in four complex sample matrices. The overall average ± standard deviation of the mass accuracy was 1.06 ± 0.76 ppm and 1.62 ± 1.88 ppm for the Orbitrap and the Q-TOF, respectively; however, individual measurements were ± 5 ppm for the Orbitrap and greater than 10 ppm for the Q-TOF. Relative isotopic abundance measurements for A + 1 were within 5% of the theoretical value if the intensity of the monoisotopic peak was greater than 1E7 for the Orbitrap and 1E5 for the Q-TOF, where an increase in error is observed with a decrease in intensity. Furthermore, complicating factors were found in the data that would impact automated data analysis strategies, including coeluting species that interfere with detectability and relative isotopic abundance measurements. The implications of these findings will be discussed with an emphasis on reasonable expectations from these instruments, guidelines for experimental workflows, data analysis considerations, and software design for non-targeted analyses.
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Affiliation(s)
- Ann M Knolhoff
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, HFS-707, College Park, MD, 20740, USA,
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8
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Zhang Z, Diao E, Shen X, Ma W, Ji N, Dong H. Ozone-Induced Changes in Phenols and Antioxidant Capacities of Peanut Skins. J FOOD PROCESS ENG 2014. [DOI: 10.1111/jfpe.12108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zheng Zhang
- College of Food Science and Engineering; Shandong Agricultural University; Taian 271018 China
| | - Enjie Diao
- College of Food Science and Engineering; Shandong Agricultural University; Taian 271018 China
| | - Xiangzhen Shen
- College of Food Science and Engineering; Shandong Agricultural University; Taian 271018 China
| | - Wenwen Ma
- College of Food Science and Engineering; Shandong Agricultural University; Taian 271018 China
| | - Ning Ji
- College of Food Science and Engineering; Shandong Agricultural University; Taian 271018 China
| | - Haizhou Dong
- College of Food Science and Engineering; Shandong Agricultural University; Taian 271018 China
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9
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Prosser GA, Larrouy-Maumus G, de Carvalho LPS. Metabolomic strategies for the identification of new enzyme functions and metabolic pathways. EMBO Rep 2014; 15:657-69. [PMID: 24829223 PMCID: PMC4197876 DOI: 10.15252/embr.201338283] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Recent technological advances in accurate mass spectrometry and data analysis have revolutionized
metabolomics experimentation. Activity-based and global metabolomic profiling methods allow
simultaneous and rapid screening of hundreds of metabolites from a variety of chemical classes,
making them useful tools for the discovery of novel enzymatic activities and metabolic pathways. By
using the metabolome of the relevant organism or close species, these methods capitalize on
biological relevance, avoiding the assignment of artificial and non-physiological functions. This
review discusses state-of-the-art metabolomic approaches and highlights recent examples of their use
for enzyme annotation, discovery of new metabolic pathways, and gene assignment of orphan metabolic
activities across diverse biological sources.
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Affiliation(s)
- Gareth A Prosser
- Mycobacterial Research Division, MRC National Institute for Medical Research, London, UK
| | - Gerald Larrouy-Maumus
- Mycobacterial Research Division, MRC National Institute for Medical Research, London, UK
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Kosma CI, Lambropoulou DA, Albanis TA. Investigation of PPCPs in wastewater treatment plants in Greece: occurrence, removal and environmental risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 466-467:421-38. [PMID: 23933429 DOI: 10.1016/j.scitotenv.2013.07.044] [Citation(s) in RCA: 311] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 07/13/2013] [Accepted: 07/13/2013] [Indexed: 05/18/2023]
Abstract
In the present work, an extensive study on the presence of eighteen pharmaceuticals and personal care products (PPCPs) in eight wastewater treatment plants (WWTPs) of Greece has been conducted. The study covered four sampling periods over 1-year, where samples (influents; effluents) from eight WWTPs of various cities in Greece were taken. All WWTPs investigated are equipped with conventional activated sludge treatment. A common pre-concentration step based on SPE was applied, followed by LC-UV/Vis-ESI-MS. Further confirmation of positive findings was accomplished by using LC coupled to a high resolution Orbitrap mass spectrometer. The results showed the occurrence of all target compounds in the wastewater samples with concentrations up to 96.65 μg/L. Paracetamol, caffeine, trimethoprim, sulfamethoxazole, carbamazepine, diclofenac and salicylic acid were the dominant compounds, while tolfenamic acid, fenofibrate and simvastatin were the less frequently detected compounds with concentrations in effluents below the LOQ. The removal efficiencies showed that many WWTPs were unable to effectively remove most of the PPCPs investigated. Finally, the study provides an assessment of the environmental risk posed by their presence in wastewaters by means of the risk quotient (RQ). RQs were more than unity for various compounds in the effluents expressing possible threat for the aquatic environment. Triclosan was found to be the most critical compound in terms of contribution and environmental risk, concluding that it should be seriously considered as a candidate for regulatory monitoring and prioritization on a European scale on the basis of realistic PNECs. The results of the extensive monitoring study contributed to a better insight on PPCPs in Greece and their presence in influent and effluent wastewaters. Furthermore, the unequivocal identification of two transformation products of trimethoprim in real wastewaters by using the advantages of the LTQ Orbitrap capabilities provides information that should be taken into consideration in future PPCP monitoring studies in wastewaters.
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Affiliation(s)
- Christina I Kosma
- Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
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11
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Cortés-Francisco N, Caixach J. Molecular characterization of dissolved organic matter through a desalination process by high resolution mass spectrometry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:9619-27. [PMID: 23879562 DOI: 10.1021/es4000388] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The effect of different water treatments such as ultrafiltration (UF) and reverse osmosis (RO) on dissolved organic matter (DOM) is still unknown. Electrospray ionization Fourier transform orbitrap mass spectrometry has been used to provide valuable information of marine DOM evolution through a desalination process on a molecular scale. In the present manuscript, the characterization of four real composite water samples from a desalination pilot plant installed in the coast of Barcelona (Spain) has been carried out. The sampling was performed on each point of the pilot plant: raw seawater (RSW), UF effluent, brine RO and permeate RO. The mass spectra of the different samples show several thousand peaks, however for the present screening study, only the mass range m/z 200-500 and the main signals in this mass range (relative intensities ≥1%) have been considered. The analysis of RSW and UF samples reveal that there is little effect on DOM by the UF pilot. However, when the water is treated on the RO an important change on DOM has been observed. The recurring periodical patterns found in RSW and UF are lost in Permeate RO sample. Compounds with more aliphatic character, with higher H/C ratio (H/Cav 1.72) are present in the Permeate and some of them have been tentatively identified as fatty acids.
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Affiliation(s)
- Nuria Cortés-Francisco
- Mass Spectrometry Laboratory/Organic Pollutants, IDAEA-CSIC , Jordi Girona 18, 08034 Barcelona, Spain
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12
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Rainczuk A, Condina M, Pelzing M, Dolman S, Rao J, Fairweather N, Jobling T, Stephens AN. The utility of isotope-coded protein labeling for prioritization of proteins found in ovarian cancer patient urine. J Proteome Res 2013; 12:4074-88. [DOI: 10.1021/pr400618v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Mark Condina
- Bruker Biosciences Pty. Ltd., Preston,
Victoria, Australia, 3072
| | - Matthias Pelzing
- Bruker Biosciences Pty. Ltd., Preston,
Victoria, Australia, 3072
| | | | | | | | - Tom Jobling
- Obstetrics and Gynaecology, Monash
Medical Centre, Clayton VIC 3168 Australia
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13
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Jeudy J, Salvador A, Simon R, Jaffuel A, Fonbonne C, Léonard JF, Gautier JC, Pasquier O, Lemoine J. Overcoming biofluid protein complexity during targeted mass spectrometry detection and quantification of protein biomarkers by MRM cubed (MRM3). Anal Bioanal Chem 2013; 406:1193-200. [DOI: 10.1007/s00216-013-7266-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 07/02/2013] [Accepted: 07/17/2013] [Indexed: 01/19/2023]
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Hyötyläinen T. Novel methodologies in metabolic profiling with a focus on molecular diagnostic applications. Expert Rev Mol Diagn 2012; 12:527-38. [PMID: 22702368 DOI: 10.1586/erm.12.33] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The metabolome contains all the biological end points of genomic, transcriptomic and proteomic perturbations, also including the influence of gut microbiota and the environment, giving a direct picture of an organism's ongoing metabolic state. Metabolomics thus has the potential to be an effective tool for early diagnosis of disease, and also to be a predictor of treatment response and survival. In recent years, the development of instrumental systems has enabled more comprehensive coverage of the metabolome. Advances in mass spectrometry and chromatography have particularly improved both the efficiency of nontargeted metabolic profiling as well as the sensitivity and reliability of targeted analyses. Mass spectrometric techniques are also increasingly becoming accepted as a routine diagnostic tool in clinical laboratories. This review summarizes the most recent advances and current challenges in metabolomics, with a focus on mass spectrometric methods utilized in biomarker research, highlighted with selected examples.
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15
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Screening natural antioxidants in peanut shell using DPPH-HPLC-DAD-TOF/MS methods. Food Chem 2012; 135:2366-71. [PMID: 22980814 DOI: 10.1016/j.foodchem.2012.07.042] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 05/29/2012] [Accepted: 07/05/2012] [Indexed: 11/21/2022]
Abstract
Peanut shell, a byproduct in oil production, is rich in natural antioxidants. Here, a rapid and efficient method using DPPH-HPLC-DAD-TOF/MS was used for the first time to screen antioxidants in peanut shell. The method is based on the hypothesis that upon reaction with 1, 1-diphenyl-2-picrylhydrazyl (DPPH), the peak areas of compounds with potential antioxidant activities in the HPLC chromatogram will be significantly reduced or disappeared, and the identity confirmation could be achieved by HPLC-DAD-TOF/MS technique. With this method, three compounds possessing potential antioxidant activities were found abundantly in the methanolic extract of peanut shell. They were identified as 5,7-dihydroxychromone, eriodictyol, and luteolin. The contents of these compounds were 0.59, 0.92, and 2.36 mg/g, respectively, and luteolin possessed the strongest radical scavenging capacity. DPPH-HPLC-DAD-TOF/MS assay facilitated rapid identification and determination of natural antioxidants in peanut shell, which may be helpful for value-added utilization of peanut processing byproducts.
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16
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Xiao JF, Zhou B, Ressom HW. Metabolite identification and quantitation in LC-MS/MS-based metabolomics. Trends Analyt Chem 2012; 32:1-14. [PMID: 22345829 PMCID: PMC3278153 DOI: 10.1016/j.trac.2011.08.009] [Citation(s) in RCA: 331] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Metabolomics aims at detection and quantitation of all metabolites in biological samples. The presence of metabolites with a wide variety of physicochemical properties and different levels of abundance challenges existing analytical platforms used for identification and quantitation of metabolites. Significant efforts have been made to improve analytical and computational methods for metabolomics studies.This review focuses on the use of liquid chromatography with tandem mass spectrometry (LC-MS/MS) for quantitative and qualitative metabolomics studies. It illustrates recent developments in computational methods for metabolite identification, including ion annotation, spectral interpretation and spectral matching. We also review selected reaction monitoring and high-resolution MS for metabolite quantitation. We discuss current challenges in metabolite identification and quantitation as well as potential solutions.
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Affiliation(s)
| | | | - Habtom W. Ressom
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, 4000 Reservoir Rd., NW, Washington DC, 20057
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