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Guo X, Pu J, Dai J, Zhao Z, Duan Y. Elucidation of formation mechanism responsible for charge-transfer reagent ions in microwave induced plasma desorption ionization (MIPDI) source. Talanta 2022; 250:123656. [DOI: 10.1016/j.talanta.2022.123656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/30/2022] [Accepted: 06/03/2022] [Indexed: 11/29/2022]
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2
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Pawlaczyk M, Cegłowski M, Frański R, Kurczewska J, Schroeder G. The Electrospray (ESI) and Flowing Atmosphere-Pressure Afterglow (FAPA) Mass Spectrometry Studies of Nitrophenols (Plant Growth Stimulants) Removed Using Strong Base-Functionalized Materials. MATERIALS 2021; 14:ma14216388. [PMID: 34771912 PMCID: PMC8585366 DOI: 10.3390/ma14216388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022]
Abstract
The functional silica-based materials functionalized with a strong nitrogen base TBD (SiO2-TBD) deposited via a linker or with a basic poly(amidoamine) dendrimer containing multiple terminal amine groups -NH2 (SiO2-EDA) and functional polymers containing a strong phosphazene base (Polymer-Phosphazene) or another basic poly(amidoamine) dendrimer (PMVEAMA-PAMAM) were tested as sorbents dedicated to a mixture of nitrophenols (p-nitrophenol and 2-methoxy-5-nitrophenol), which are analogs of nitrophenols used in plant growth biostimulants. The adsorptive potential of the studied materials reached 0.102, 0.089, 0.140, and 0.074 g of the nitrophenols g−1, for SiO2-TBD, SiO2-EDA, polymer-phosphazene, and PMVEAMA-PAMAM, respectively. The sorptive efficiency of the analytes, i.e., their adsorption on the functional materials, the desorption from the obtained [(sorbent)H+ − nitrophenolates–] complexes, and interactions with the used soil, were monitored using mass spectrometry (MS) technique with electrospray (ESI) and flowing atmosphere-pressure afterglow (FAPA) ionizations, for the analysis of the aqueous solutions and the solids, respectively. The results showed that the adsorption/desorption progress is determined by the structures of the terminal basic domains anchored to the materials, which are connected with the strength of the proton exchange between the sorbents and nitrophenols. Moreover, the conducted comprehensive MS analyses, performed for both solid and aqueous samples, gave a broad insight into the interactions of the biostimulants and the presented functional materials.
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Surdu M, Pospisilova V, Xiao M, Wang M, Mentler B, Simon M, Stolzenburg D, Hoyle CR, Bell DM, Lee CP, Lamkaddam H, Lopez-Hilfiker F, Ahonen LR, Amorim A, Baccarini A, Chen D, Dada L, Duplissy J, Finkenzeller H, He XC, Hofbauer V, Kim C, Kürten A, Kvashnin A, Lehtipalo K, Makhmutov V, Molteni U, Nie W, Onnela A, Petäjä T, Quéléver LLJ, Tauber C, Tomé A, Wagner R, Yan C, Prevot ASH, Dommen J, Donahue NM, Hansel A, Curtius J, Winkler PM, Kulmala M, Volkamer R, Flagan RC, Kirkby J, Worsnop DR, Slowik JG, Wang DS, Baltensperger U, El Haddad I. Molecular characterization of ultrafine particles using extractive electrospray time-of-flight mass spectrometry. ACTA ACUST UNITED AC 2021; 1:434-448. [PMID: 34604755 PMCID: PMC8459645 DOI: 10.1039/d1ea00050k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 08/10/2021] [Indexed: 12/12/2022]
Abstract
Aerosol particles negatively affect human health while also having climatic relevance due to, for example, their ability to act as cloud condensation nuclei. Ultrafine particles (diameter Dp < 100 nm) typically comprise the largest fraction of the total number concentration, however, their chemical characterization is difficult because of their low mass. Using an extractive electrospray time-of-flight mass spectrometer (EESI-TOF), we characterize the molecular composition of freshly nucleated particles from naphthalene and β-caryophyllene oxidation products at the CLOUD chamber at CERN. We perform a detailed intercomparison of the organic aerosol chemical composition measured by the EESI-TOF and an iodide adduct chemical ionization mass spectrometer equipped with a filter inlet for gases and aerosols (FIGAERO-I-CIMS). We also use an aerosol growth model based on the condensation of organic vapors to show that the chemical composition measured by the EESI-TOF is consistent with the expected condensed oxidation products. This agreement could be further improved by constraining the EESI-TOF compound-specific sensitivity or considering condensed-phase processes. Our results show that the EESI-TOF can obtain the chemical composition of particles as small as 20 nm in diameter with mass loadings as low as hundreds of ng m−3 in real time. This was until now difficult to achieve, as other online instruments are often limited by size cutoffs, ionization/thermal fragmentation and/or semi-continuous sampling. Using real-time simultaneous gas- and particle-phase data, we discuss the condensation of naphthalene oxidation products on a molecular level. Using real-time simultaneous gas- and particle-phase data, the condensation of naphthalene and β-caryophyllene oxidation products on a molecular level is discussed.![]()
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Affiliation(s)
- Mihnea Surdu
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Veronika Pospisilova
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Mao Xiao
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Mingyi Wang
- Center for Atmospheric Particle Studies, Carnegie Mellon University 15213 Pittsburgh PA USA
| | - Bernhard Mentler
- Institute of Ion Physics and Applied Physics, University of Innsbruck 6020 Innsbruck Austria
| | - Mario Simon
- Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt 60438 Frankfurt am Main Germany
| | - Dominik Stolzenburg
- Faculty of Physics, University of Vienna 1090 Vienna Austria.,Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | - Christopher R Hoyle
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland .,Institute for Atmospheric and Climate Science, ETH Zurich 8006 Zurich Switzerland
| | - David M Bell
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Chuan Ping Lee
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Houssni Lamkaddam
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Felipe Lopez-Hilfiker
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Lauri R Ahonen
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | - Antonio Amorim
- CENTRA, FCUL, University of Lisbon 1749-016 Lisbon Portugal
| | - Andrea Baccarini
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland .,School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne 1015 Lausanne Switzerland
| | - Dexian Chen
- Center for Atmospheric Particle Studies, Carnegie Mellon University 15213 Pittsburgh PA USA
| | - Lubna Dada
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland .,Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | - Jonathan Duplissy
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland.,Helsinki Institute of Physics, University of Helsinki 00014 Helsinki Finland
| | - Henning Finkenzeller
- Department of Chemistry, CIRES, University of Colorado Boulder 80309 Boulder CO USA
| | - Xu-Cheng He
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | - Victoria Hofbauer
- Center for Atmospheric Particle Studies, Carnegie Mellon University 15213 Pittsburgh PA USA
| | - Changhyuk Kim
- California Institute of Technology, Division of Chemistry and Chemical Engineering 210-41 Pasadena CA 91125 USA.,School of Civil and Environmental Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Andreas Kürten
- Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt 60438 Frankfurt am Main Germany
| | - Aleksandr Kvashnin
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Laboratory of Solar and Cosmic Ray Physics 119991 Moscow Russia
| | - Katrianne Lehtipalo
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland.,Finnish Meteorological Institute 00560 Helsinki Finland
| | - Vladimir Makhmutov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Laboratory of Solar and Cosmic Ray Physics 119991 Moscow Russia
| | - Ugo Molteni
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Wei Nie
- Joint International Research Laboratory of Atmospheric and Earth System Research, School of Atmospheric Sciences, Nanjing University Nanjing China
| | | | - Tuukka Petäjä
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | - Lauriane L J Quéléver
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | | | - António Tomé
- IDL-Universidade da Beira Interior 6201-001 Covilhã Portugal
| | - Robert Wagner
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | - Chao Yan
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland
| | - Andre S H Prevot
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Josef Dommen
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Neil M Donahue
- Center for Atmospheric Particle Studies, Carnegie Mellon University 15213 Pittsburgh PA USA
| | - Armin Hansel
- Institute of Ion Physics and Applied Physics, University of Innsbruck 6020 Innsbruck Austria
| | - Joachim Curtius
- Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt 60438 Frankfurt am Main Germany
| | - Paul M Winkler
- Faculty of Physics, University of Vienna 1090 Vienna Austria
| | - Markku Kulmala
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland.,Helsinki Institute of Physics, University of Helsinki 00014 Helsinki Finland
| | - Rainer Volkamer
- Department of Chemistry, CIRES, University of Colorado Boulder 80309 Boulder CO USA
| | - Richard C Flagan
- California Institute of Technology, Division of Chemistry and Chemical Engineering 210-41 Pasadena CA 91125 USA
| | - Jasper Kirkby
- Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt 60438 Frankfurt am Main Germany.,CERN 1211 Geneva Switzerland
| | - Douglas R Worsnop
- Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki 00014 Helsinki Finland.,Aerodyne Research 01821 Billerica MA USA
| | - Jay G Slowik
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Dongyu S Wang
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Urs Baltensperger
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Imad El Haddad
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
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4
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Gao K, Zhu T. Analytical methods for organosulfate detection in aerosol particles: Current status and future perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 784:147244. [PMID: 34088066 DOI: 10.1016/j.scitotenv.2021.147244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
Organosulfates (OSs) are well-known water-soluble constituents of atmospheric aerosol particles. They are formed from multiphase reactions between volatile organic compounds (VOCs) and their photooxidation products, and acidic sulfate originating from biogenic and anthropogenic sources in the atmosphere. Although the analytical procedures used to measure OSs, including sampling, pre-treatment, and instrumental detection, have advanced substantially in the last decade, there is still a need for accurate and standardized analysis procedures for the identification, quantification, and comparison of OSs in different regions. Additionally, there has no study focused on the health effects of OSs. This review outlines the analytical methods developed for OS detection during the last decade, highlighting both improvements and drawbacks. It also considers the future development of analytical methods for OS detection, and proposes the establishment of OSs screening method from the perspective of health effects to solve the problem of unknown health related OSs identification.
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Affiliation(s)
- Ke Gao
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing, China
| | - Tong Zhu
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing, China.
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5
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Aghaei M, Bogaerts A. Flowing Atmospheric Pressure Afterglow for Ambient Ionization: Reaction Pathways Revealed by Modeling. Anal Chem 2021; 93:6620-6628. [PMID: 33877800 DOI: 10.1021/acs.analchem.0c04076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe the plasma chemistry in a helium flowing atmospheric pressure afterglow (FAPA) used for analytical spectrometry, by means of a quasi-one-dimensional (1D) plasma chemical kinetics model. We study the effect of typical impurities present in the feed gas, as well as the afterglow in ambient humid air. The model provides the species density profiles in the discharge and afterglow regions and the chemical pathways. We demonstrate that H, N, and O atoms are formed in the discharge region, while the dominant reactive neutral species in the afterglow are O3 and NO. He* and He2* are responsible for Penning ionization of O2, N2, H2O, H2, and N, and especially O and H atoms. Besides, He2+ also contributes to ionization of N2, O2, H2O, and O through charge transfer reactions. From the pool of ions created in the discharge, NO+ and (H2O)3H+ are the dominant ions in the afterglow. Moreover, negatively charged clusters, such as NO3H2O- and NO2H2O-, are formed and their pathway is discussed as well. Our model predictions are in line with earlier observations in the literature about the important reagent ions and provide a comprehensive overview of the underlying pathways. The model explains in detail why helium provides a high analytical sensitivity because of high reagent ion formation by both Penning ionization and charge transfer. Such insights are very valuable for improving the analytical performance of this (and other) ambient desorption/ionization source(s).
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Affiliation(s)
- Maryam Aghaei
- Research group PLASMANT, Chemistry Department, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Annemie Bogaerts
- Research group PLASMANT, Chemistry Department, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
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6
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Kaur Kohli R, Davies JF. Paper spray mass spectrometry for the analysis of picoliter droplets. Analyst 2020; 145:2639-2648. [PMID: 32064475 DOI: 10.1039/c9an02534k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent experimental efforts have shown that single particle levitation methods may be effectively coupled with mass spectrometry (MS) using paper spray (PS) ionization for compositional analysis of picoliter droplets. In this work, we characterize the response of PS-MS to analytes delivered in the form of picoliter droplets and explore its potential for identification and quantification of these samples. Using a microdroplet dispenser to generate droplets, we demonstrate sensitivity to a range of oxygenated organic molecules typical of compounds found in atmospheric secondary organic aerosol. We assess experimental factors that influence the reproducibility and sensitivity of the method and explore the linearity of the system response to increasing analyte mass in droplets containing single or multicomponent analytes. We show that the ratio of analyte signal from multicomponent samples may be used to characterize the relative composition of the system. These measurements demonstrate that the droplet PS-MS method is an effective tool for qualitative and quantitative analysis of single picoliter droplets containing picogram levels of analyte. The potential applications of this technique for characterizing the composition of levitated particles will be discussed.
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Affiliation(s)
- Ravleen Kaur Kohli
- Department of Chemistry, University of California, Riverside, California 92521, USA.
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7
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Lee CP, Riva M, Wang D, Tomaz S, Li D, Perrier S, Slowik JG, Bourgain F, Schmale J, Prevot ASH, Baltensperger U, George C, El Haddad I. Online Aerosol Chemical Characterization by Extractive Electrospray Ionization-Ultrahigh-Resolution Mass Spectrometry (EESI-Orbitrap). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3871-3880. [PMID: 32146813 DOI: 10.1021/acs.est.9b07090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Current mass spectrometry techniques for the online measurement of organic aerosol (OA) composition are subjected to either thermal/ionization-induced artifacts or limited mass resolving power, hindering accurate molecular characterization. Here, we combined the soft ionization capability of extractive electrospray ionization (EESI) and the ultrahigh mass resolution of Orbitrap for real-time, near-molecular characterization of OAs. Detection limits as low as tens of ng m-3 with linearity up to hundreds of μg m-3 at 0.2 Hz time resolution were observed for single- and mixed-component calibrations. The performance of the EESI-Orbitrap system was further evaluated with laboratory-generated secondary OAs (SOAs) and filter extracts of ambient particulate matter. The high mass accuracy and resolution (140 000 at m/z 200) of the EESI-Orbitrap system enable unambiguous identification of the aerosol components' molecular composition and allow a clear separation between adjacent peaks, which would be significantly overlapping if a medium-resolution (20 000) mass analyzer was used. Furthermore, the tandem mass spectrometry (MS2) capability provides valuable insights into the compound structure. For instance, the MS2 analysis of ambient OA samples and lab-generated biogenic SOAs points to specific SOA precursors in ambient air among a range of possible isomers based on fingerprint fragment ions. Overall, this newly developed and characterized EESI-Orbitrap system will advance our understanding of the formation and evolution of atmospheric aerosols.
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Affiliation(s)
- Chuan Ping Lee
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | - Matthieu Riva
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, 69626 Villeurbanne, France
| | - Dongyu Wang
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | - Sophie Tomaz
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, 69626 Villeurbanne, France
| | - Dandan Li
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, 69626 Villeurbanne, France
| | - Sebastien Perrier
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, 69626 Villeurbanne, France
| | - Jay G Slowik
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | - Frederic Bourgain
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, 69626 Villeurbanne, France
| | - Julia Schmale
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
- School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Andre S H Prevot
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | - Urs Baltensperger
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | - Christian George
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, 69626 Villeurbanne, France
| | - Imad El Haddad
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
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8
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Brüggemann M, Xu R, Tilgner A, Kwong KC, Mutzel A, Poon HY, Otto T, Schaefer T, Poulain L, Chan MN, Herrmann H. Organosulfates in Ambient Aerosol: State of Knowledge and Future Research Directions on Formation, Abundance, Fate, and Importance. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3767-3782. [PMID: 32157872 DOI: 10.1021/acs.est.9b06751] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Organosulfates (OSs), also referred to as organic sulfate esters, are well-known and ubiquitous constituents of atmospheric aerosol particles. Commonly, they are assumed to form upon mixing of air masses of biogenic and anthropogenic origin, that is, through multiphase reactions between organic compounds and acidic sulfate particles. However, in contrast to this simplified picture, recent studies suggest that OSs may also originate from purely anthropogenic precursors or even directly from biomass and fossil fuel burning. Moreover, besides classical OS formation pathways, several alternative routes have been discovered, suggesting that OS formation possibly occurs through a wider variety of formation mechanisms in the atmosphere than initially expected. During the past decade, OSs have reached a constantly growing attention within the atmospheric science community with evermore studies reporting on large numbers of OS species in ambient aerosol. Nonetheless, estimates on OS concentrations and implications on atmospheric physicochemical processes are still connected to large uncertainties, calling for combined field, laboratory, and modeling studies. In this Critical Review, we summarize the current state of knowledge in atmospheric OS research, discuss unresolved questions, and outline future research needs, also in view of reductions of anthropogenic sulfur dioxide (SO2) emissions. Particularly, we focus on (1) field measurements of OSs and measurement techniques, (2) formation pathways of OSs and their atmospheric relevance, (3) transformation, reactivity, and fate of OSs in atmospheric particles, and (4) modeling efforts of OS formation and their global abundance.
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Affiliation(s)
- Martin Brüggemann
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Rongshuang Xu
- Earth System Science Programme, Faculty of Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Andreas Tilgner
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Kai Chung Kwong
- Earth System Science Programme, Faculty of Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Anke Mutzel
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Hon Yin Poon
- Earth System Science Programme, Faculty of Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Tobias Otto
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Thomas Schaefer
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Laurent Poulain
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Man Nin Chan
- Earth System Science Programme, Faculty of Science, The Chinese University of Hong Kong, Hong Kong, China
- The Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Hong Kong, China
| | - Hartmut Herrmann
- Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Permoserstrasse 15, 04318 Leipzig, Germany
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9
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Pospisilova V, Lopez-Hilfiker FD, Bell DM, El Haddad I, Mohr C, Huang W, Heikkinen L, Xiao M, Dommen J, Prevot ASH, Baltensperger U, Slowik JG. On the fate of oxygenated organic molecules in atmospheric aerosol particles. SCIENCE ADVANCES 2020; 6:eaax8922. [PMID: 32201715 PMCID: PMC7069715 DOI: 10.1126/sciadv.aax8922] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 12/17/2019] [Indexed: 05/05/2023]
Abstract
Highly oxygenated organic molecules (HOMs) are formed from the oxidation of biogenic and anthropogenic gases and affect Earth's climate and air quality by their key role in particle formation and growth. While the formation of these molecules in the gas phase has been extensively studied, the complexity of organic aerosol (OA) and lack of suitable measurement techniques have hindered the investigation of their fate post-condensation, although further reactions have been proposed. We report here novel real-time measurements of these species in the particle phase, achieved using our recently developed extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF). Our results reveal that condensed-phase reactions rapidly alter OA composition and the contribution of HOMs to the particle mass. In consequence, the atmospheric fate of HOMs cannot be described solely in terms of volatility, but particle-phase reactions must be considered to describe HOM effects on the overall particle life cycle and global carbon budget.
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Affiliation(s)
- V. Pospisilova
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - F. D. Lopez-Hilfiker
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
- Tofwerk AG, 3600 Thun, Switzerland
| | - D. M. Bell
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - I. El Haddad
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - C. Mohr
- Department of Environmental Science, Stockholm University, Stockholm 11418, Sweden
| | - W. Huang
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - L. Heikkinen
- Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, Helsinki 00014, Finland
| | - M. Xiao
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - J. Dommen
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - A. S. H. Prevot
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - U. Baltensperger
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - J. G. Slowik
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
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10
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Johnston MV, Kerecman DE. Molecular Characterization of Atmospheric Organic Aerosol by Mass Spectrometry. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2019; 12:247-274. [PMID: 30901261 DOI: 10.1146/annurev-anchem-061516-045135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Atmospheric aerosol, particulate matter suspended in the air we breathe, exerts a strong impact on our health and the environment. Controlling the amount of particulate matter in air is difficult, as there are many ways particles can form by both natural and anthropogenic processes. We gain insight into the sources of particulate matter through chemical composition measurements. A substantial portion of atmospheric aerosol is organic, and this organic matter is exceedingly complex on a molecular scale, encompassing hundreds to thousands of individual compounds that distribute between the gas and particle phases. Because of this complexity, no single analytical technique is sufficient. However, mass spectrometry plays a crucial role owing to its combination of high sensitivity and molecular specificity. This review surveys the various ways mass spectrometry is used to characterize atmospheric organic aerosol at a molecular level, tracing these methods from inception to current practice, with emphasis on current and emerging areas of research. Both offline and online approaches are covered, and molecular measurements with them are discussed in the context of identifying sources and elucidating the underlying chemical mechanisms of particle formation. There is an ongoing need to improve existing techniques and develop new ones if we are to further advance our knowledge of how to mitigate the unwanted health and environmental impacts of particles.
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Affiliation(s)
- Murray V Johnston
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA;
| | - Devan E Kerecman
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA;
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11
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ZHANG XL, ZHANG H, WANG XC, HUANG KK, WANG D, CHEN HW. Advances in Ambient Ionization for Mass Spectrometry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(18)61122-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Zuth C, Vogel AL, Ockenfeld S, Huesmann R, Hoffmann T. Ultrahigh-Resolution Mass Spectrometry in Real Time: Atmospheric Pressure Chemical Ionization Orbitrap Mass Spectrometry of Atmospheric Organic Aerosol. Anal Chem 2018; 90:8816-8823. [DOI: 10.1021/acs.analchem.8b00671] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Christoph Zuth
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University, Mainz 55128, Germany
| | - Alexander L. Vogel
- Laboratory for Environmental Chemistry & Laboratory for Atmospheric Chemistry, Paul Scherrer Institute, Villigen 5232, Switzerland
| | - Sara Ockenfeld
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University, Mainz 55128, Germany
| | - Regina Huesmann
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University, Mainz 55128, Germany
| | - Thorsten Hoffmann
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University, Mainz 55128, Germany
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13
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Li Y, Zhang H, Zhao Z, Tian Y, Liu K, Jie F, Zhu L, Chen H. Mass spectral chemical fingerprints reveal the molecular dependence of exhaust particulate matters on engine speeds. J Environ Sci (China) 2018; 67:287-293. [PMID: 29778162 DOI: 10.1016/j.jes.2017.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 09/09/2017] [Accepted: 09/13/2017] [Indexed: 06/08/2023]
Abstract
Particulate matters (PMs) emitted by automobile exhaust contribute to a significant fraction of the global PMs. Extractive atmospheric pressure chemical ionization mass spectrometry (EAPCI-MS) was developed to explore the molecular dependence of PMs collected from exhaust gases produced at different vehicle engine speeds. The mass spectral fingerprints of the organic compounds embedded in differentially sized PMs (e.g., 0.22-0.45, 0.45-1.00, 1.00-2.00, 2.00-3.00, 3.00-5.00, and 5.00-10.00μm) generated at different engine speeds (e.g., 1000, 1500, 2000, 2500, and 3000r/min) were chemically profiled in the mass range of mass to charge ratio (m/z) 50-800. Organic compounds, including alcohols, aldehydes, and esters, were detected in all the PMs tested, with varied concentration levels for each individual PM sample. At relatively low engine speeds (≤1500r/min), the total amount of organic species embedded in PMs of 0.22-1.00μm was greater than in PMs of other sizes, while more organic species were found in PMs of 5.00-10.00μm at high engine speeds (≥3000r/min), indicating that the organic compounds distributed in different sizes of PMs strongly correlated with the engine speed. The experimental data showed that the EAPCI-MS technique enables molecular characterization of PMs in exhaust, revealing the chemical dependence of PMs on the engine speeds (i.e., the combustion conditions) of automobiles.
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Affiliation(s)
- Yi Li
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China
| | - Hua Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China
| | - Zongshan Zhao
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yong Tian
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
| | - Kun Liu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China
| | - Feifan Jie
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China
| | - Liang Zhu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China.
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14
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Shelley JT, Badal SP, Engelhard C, Hayen H. Ambient desorption/ionization mass spectrometry: evolution from rapid qualitative screening to accurate quantification tool. Anal Bioanal Chem 2018; 410:4061-4076. [PMID: 29700557 DOI: 10.1007/s00216-018-1023-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 03/02/2018] [Accepted: 03/13/2018] [Indexed: 11/24/2022]
Abstract
In this article, some recent trends and developments in ambient desorption/ionization mass spectrometry (ADI-MS) are reviewed, with a special focus on quantitative analyses with direct, open-air sampling. Accurate quantification with ADI-MS is still not routinely performed, but this aspect is considered of utmost importance for the advancement of the field. In fact, several research groups are devoted to the development of novel and optimized ADI-MS approaches. Some key trends include novel sample introduction strategies for improved reproducibility, tailored sample preparation protocols for removing the matrix and matrix effects, and multimode ionization sources. In addition, there is significant interest in quantitative mass spectrometry imaging. Graphical abstract Conceptual diagram of the ambient desorption/ionization mass spectrometry approach with different desorption/ionization probes.
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Affiliation(s)
- Jacob T Shelley
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, 12180, USA.
| | - Sunil P Badal
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, 12180, USA
| | - Carsten Engelhard
- Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076, Siegen, Germany
| | - Heiko Hayen
- Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstr. 30, 48149, Münster, Germany.
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15
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Blair SL, Ng NL, Zambrzycki SC, Li A, Fernández FM. Aerosol Vacuum-Assisted Plasma Ionization (Aero-VaPI) Coupled to Ion Mobility-Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2018; 29:635-639. [PMID: 29404968 DOI: 10.1007/s13361-017-1872-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 12/08/2017] [Accepted: 12/19/2017] [Indexed: 06/07/2023]
Abstract
In this communication, we report on the real-time analysis of organic aerosol particles by Vacuum-assisted Plasma Ionization-Mass Spectrometry (Aero-VaPI-MS) using a home-built VaPI ion source coupled to a Synapt G2-S HDMS ion mobility-mass spectrometry (IM-MS) system. Standards of organic molecules of interest in prebiotic chemistry were used to generate aerosols. Monocaprin and decanoic acid aerosol particles were successfully detected in both the positive and negative ion modes, respectively. A complex aerosol mixture of different sizes of polymers of L-malic acid was also examined through ion mobility (IM) separations, resulting in the detection of polymers of up to eight monomeric units. This noncommercial plasma ion source is proposed as a low cost alternative to other plasma ionization platforms used for aerosol analysis, and a higher-performance alternative to more traditional aerosol mass spectrometers. VaPI provides robust online ionization of organics in aerosols without extensive ion activation, with the coupling to IM-MS providing higher peak capacity and excellent mass accuracy. Graphical Abstract ᅟ.
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Affiliation(s)
- Sandra L Blair
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Nga L Ng
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Stephen C Zambrzycki
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, USA
| | - Anyin Li
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, USA
| | - Facundo M Fernández
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, USA.
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16
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Wells JR, Schoemaecker C, Carslaw N, Waring MS, Ham JE, Nelissen I, Wolkoff P. Reactive indoor air chemistry and health-A workshop summary. Int J Hyg Environ Health 2017; 220:1222-1229. [PMID: 28964679 PMCID: PMC6388628 DOI: 10.1016/j.ijheh.2017.09.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 09/18/2017] [Accepted: 09/22/2017] [Indexed: 12/23/2022]
Abstract
The chemical composition of indoor air changes due to the reactive nature of the indoor environment. Historically, only the stable parent compounds were investigated due to their ease of measurement by conventional methods. Today, however, scientists can better characterize oxidation products (gas and particulate-phase) formed by indoor chemistry. An understanding of occupant exposure can be developed through the investigation of indoor oxidants, the use of derivatization techniques, atmospheric pressure detection, the development of real-time technologies, and improved complex modeling techniques. Moreover, the connection between exposure and health effects is now receiving more attention from the research community. Nevertheless, a need still exists for improved understanding of the possible link between indoor air chemistry and observed acute or chronic health effects and long-term effects such as work-related asthma.
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Affiliation(s)
- J R Wells
- NIOSH/HELD/EAB, Morgantown, WV, USA.
| | | | - N Carslaw
- Environment Department, University of York, York, UK
| | - M S Waring
- Drexel University, Philadelphia, PA, USA
| | - J E Ham
- NIOSH/HELD/EAB, Morgantown, WV, USA
| | - I Nelissen
- Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - P Wolkoff
- National Research Center for the Working Environment, Copenhagen, Denmark
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17
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Müller M, Eichler P, D'Anna B, Tan W, Wisthaler A. Direct Sampling and Analysis of Atmospheric Particulate Organic Matter by Proton-Transfer-Reaction Mass Spectrometry. Anal Chem 2017; 89:10889-10897. [PMID: 28911223 DOI: 10.1021/acs.analchem.7b02582] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report on a new method for analyzing atmospheric submicrometer particulate organic matter which combines direct particle sampling and volatilization with online chemical ionization mass spectrometric analysis. Technically, the method relies on the combined use of a CHARON ("Chemical Analysis of Aerosol Online") particle inlet and a proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS). Laboratory studies on target analytes showed that the ionization conditions in the PTR-ToF-MS lead to extensive fragmentation of levoglucosan and cis-pinonic acid, while protonated oleic acid and 5α-cholestane molecules remain intact. Potential problems and biases in quantitative and qualitative analyses are discussed. Side-by-side atmospheric comparison measurements of total particulate organic mass and levoglucosan with an aerosol mass spectrometer (AMS) were in good agreement. Complex and clearly distinct organic mass spectra were obtained from atmospheric measurements in three European cities (Lyon, Valencia, Innsbruck). Data visualization in reduced-parameter frameworks (e.g., oxidation state of carbon vs carbon number) revealed that the CHARON-PTR-ToF-MS technique adds significant analytical capabilities for characterizing particulate organic carbon in the Earth's atmosphere. Positive matrix factorization (PMF) was used for apportioning sources of atmospheric particles in late fall in Innsbruck. The m/z signatures of known source marker compounds (levoglucosan and resin acids, polycyclic aromatic hydrocarbons, nicotine) in the mass spectra were used to assign PMF factors to biomass burning, traffic, and smoking emission sources.
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Affiliation(s)
- Markus Müller
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstraße 25, 6020 Innsbruck, Austria.,Ionicon Analytik GmbH, Eduard-Bodem-Gasse 3, 6020 Innsbruck, Austria
| | - Philipp Eichler
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstraße 25, 6020 Innsbruck, Austria
| | - Barbara D'Anna
- CNRS, UMR5256, IRCELYON, Institut de recherches sur la catalyse et l'environnement de Lyon, Université de Lyon , 2 Avenue Albert Einstein, Villeurbanne, Lyon, 69626, France
| | - Wen Tan
- Department of Chemistry, University of Oslo , Postboks 1033, Blindern, 0315 Oslo, Norway
| | - Armin Wisthaler
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstraße 25, 6020 Innsbruck, Austria.,Department of Chemistry, University of Oslo , Postboks 1033, Blindern, 0315 Oslo, Norway
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18
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Rüdiger J, Bobrowski N, Liotta M, Hoffmann T. Development and application of a sampling method for the determination of reactive halogen species in volcanic gas emissions. Anal Bioanal Chem 2017; 409:5975-5985. [PMID: 28852788 DOI: 10.1007/s00216-017-0525-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 06/18/2017] [Accepted: 07/14/2017] [Indexed: 12/01/2022]
Abstract
Volcanoes release large amounts of reactive trace gases including sulfur and halogen-containing species into the atmosphere. The knowledge of halogen chemistry in volcanic plumes can deliver information about subsurface processes and is relevant for the understanding of the impact of volcanoes on atmospheric chemistry. In this study, a gas diffusion denuder sampling method using 1,3,5-trimethoxybenzene (1,3,5-TMB)-coated glass tubes for the in situ derivatization of reactive halogen species (RHS) was characterized by a series of laboratory experiments. The coating proved to be applicable to collect selectively gaseous bromine species with oxidation states (OS) of +1 or 0 (such as Br2, BrCl, HOBr, BrO, and BrONO2) while being unreactive to HBr (OS -1). The reaction of 1,3,5-TMB with reactive bromine species forms 1-bromo-2,4,6-TMB-other halogens give corresponding derivatives. Solvent elution of the derivatives followed by analysis with GC-MS results in absolute detection limits of a few nanograms for Br2, Cl2, and I2. In 2015, the technique was applied on volcanic gas plumes at Mt. Etna (Italy) measuring reactive bromine mixing ratios between 0.8 and 7.0 ppbv. Total bromine mixing ratios between 4.7 and 27.5 ppbv were derived from alkaline trap samples, simultaneously taken by a Raschig tube and analyzed with IC and ICP-MS. This leads to the first results of the reactive bromine contribution to total bromine in volcanic emissions, spanning over a range between 12% (±1) and 36% (±2). Our finding is in an agreement with previous model studies, which imply values <44% for plume ages <1 min, which is consistent with the assumed plume age at the sampling sites. Graphical abstract Illustration of the measurement procedure for the determination of reactive halogen species in volcanic plumes.
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Affiliation(s)
- Julian Rüdiger
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Nicole Bobrowski
- Max Planck Institute for Chemistry, Hahn-Meitner-Weg 15, 55128, Mainz, Germany.,Institute of Environmental Physics, University of Heidelberg, Im Neuenheimer Feld 229, 69120, Heidelberg, Germany.,Former Address: Institute of Geosciences, Johannes Gutenberg-University, 55128, Mainz, Germany
| | - Marcello Liotta
- Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Via Ugo la Malfa 153, 90146, Palermo, Italy
| | - Thorsten Hoffmann
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany.
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19
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Storey AP, Zeiri OM, Ray SJ, Hieftje GM. Use of Interrupted Helium Flow in the Analysis of Vapor Samples with Flowing Atmospheric-Pressure Afterglow-Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:263-269. [PMID: 27757823 DOI: 10.1007/s13361-016-1520-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/27/2016] [Accepted: 10/02/2016] [Indexed: 06/06/2023]
Abstract
The flowing atmospheric-pressure afterglow (FAPA) source was used for the mass-spectrometric analysis of vapor samples introduced between the source and mass spectrometer inlet. Through interrupted operation of the plasma-supporting helium flow, helium consumption is greatly reduced and dynamic gas behavior occurs that was characterized by schlieren imaging. Moreover, mass spectra acquired immediately after the onset of helium flow exhibit a signal spike before declining and ultimately reaching a steady level. This initial signal appears to be due to greater interaction of sample vapor with the afterglow of the source when helium flow resumes. In part, the initial spike in signal can be attributed to a pooling of analyte vapor in the absence of helium flow from the source. Time-resolved schlieren imaging of the helium flow during on and off cycles provided insight into gas-flow patterns between the FAPA source and the MS inlet that were correlated with mass-spectral data. Graphical Abstract ᅟ.
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Affiliation(s)
- Andrew P Storey
- Department of Chemistry, Indiana University, Bloomington, IN, 47405, USA
| | - Offer M Zeiri
- Department of Chemistry, Indiana University, Bloomington, IN, 47405, USA
- Nuclear Research Center Negev, Beer-Sheva, Israel
| | - Steven J Ray
- Department of Chemistry, Indiana University, Bloomington, IN, 47405, USA
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY, 14260, USA
| | - Gary M Hieftje
- Department of Chemistry, Indiana University, Bloomington, IN, 47405, USA.
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20
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Vogel AL, Schneider J, Müller-Tautges C, Phillips GJ, Pöhlker ML, Rose D, Zuth C, Makkonen U, Hakola H, Crowley JN, Andreae MO, Pöschl U, Hoffmann T. Aerosol Chemistry Resolved by Mass Spectrometry: Linking Field Measurements of Cloud Condensation Nuclei Activity to Organic Aerosol Composition. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:10823-10832. [PMID: 27709898 DOI: 10.1021/acs.est.6b01675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Aerosol hygroscopic properties were linked to its chemical composition by using complementary online mass spectrometric techniques in a comprehensive chemical characterization study at a rural mountaintop station in central Germany in August 2012. In particular, atmospheric pressure chemical ionization mass spectrometry ((-)APCI-MS) provided measurements of organic acids, organosulfates, and nitrooxy-organosulfates in the particle phase at 1 min time resolution. Offline analysis of filter samples enabled us to determine the molecular composition of signals appearing in the online (-)APCI-MS spectra. Aerosol mass spectrometry (AMS) provided quantitative measurements of total submicrometer organics, nitrate, sulfate, and ammonium. Inorganic sulfate measurements were achieved by semionline ion chromatography and were compared to the AMS total sulfate mass. We found that up to 40% of the total sulfate mass fraction can be covalently bonded to organic molecules. This finding is supported by both on- and offline soft ionization techniques, which confirmed the presence of several organosulfates and nitrooxy-organosulfates in the particle phase. The chemical composition analysis was compared to hygroscopicity measurements derived from a cloud condensation nuclei counter. We observed that the hygroscopicity parameter (κ) that is derived from organic mass fractions determined by AMS measurements may overestimate the observed κ up to 0.2 if a high fraction of sulfate is bonded to organic molecules and little photochemical aging is exhibited.
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Affiliation(s)
- Alexander L Vogel
- Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University Mainz , 55128 Mainz, Germany
| | - Johannes Schneider
- Particle Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Christina Müller-Tautges
- Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University Mainz , 55128 Mainz, Germany
| | - Gavin J Phillips
- Air Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Mira L Pöhlker
- Multiphase Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Diana Rose
- Multiphase Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Christoph Zuth
- Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University Mainz , 55128 Mainz, Germany
| | - Ulla Makkonen
- Finnish Meteorological Institute , FI-00560, Helsinki, Finland
| | - Hannele Hakola
- Finnish Meteorological Institute , FI-00560, Helsinki, Finland
| | - John N Crowley
- Air Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Meinrat O Andreae
- Multiphase Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Ulrich Pöschl
- Multiphase Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Thorsten Hoffmann
- Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University Mainz , 55128 Mainz, Germany
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21
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Vogel AL, Schneider J, Müller-Tautges C, Klimach T, Hoffmann T. Aerosol Chemistry Resolved by Mass Spectrometry: Insights into Particle Growth after Ambient New Particle Formation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:10814-10822. [PMID: 27709900 DOI: 10.1021/acs.est.6b01673] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Atmospheric oxidation of volatile organic compounds (VOCs) yields a large number of different organic molecules which comprise a wide range of volatility. Depending on their volatility, they can be involved in new particle formation and particle growth, thus affecting the number concentration of cloud condensation nuclei in the atmosphere. Here, we identified oxidation products of VOCs in the particle phase during a field study at a rural mountaintop station in central Germany. We used atmospheric pressure chemical ionization mass spectrometry ((-)APCI-MS) and aerosol mass spectrometry for time-resolved measurements of organic species and of the total organic aerosol (OA) mass in the size range of 0.02-2.5 and 0.05-0.6 μm, respectively. The elemental composition of organic molecules was determined by offline analysis of colocated PM 2.5 filter samples using liquid chromatography coupled to electrospray ionization ultrahigh-resolution mass spectrometry. We found extremely low volatile organic compounds, likely from sesquiterpene oxidation, being the predominant signals in the (-)APCI-MS mass spectrum during new particle formation. Low volatile organic compounds started to dominate the spectrum when the newly formed particles were growing to larger diameters. Furthermore, the APCI-MS mass spectra pattern indicated that the average molecular weight of the OA fraction ranged between 270 and 340 amu, being inversely related to OA mass. Our observations can help further the understanding of which biogenic precursors and which chemical processes drive particle growth after atmospheric new-particle formation.
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Affiliation(s)
- Alexander L Vogel
- Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University Mainz , 55128 Mainz, Germany
| | - Johannes Schneider
- Particle Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Christina Müller-Tautges
- Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University Mainz , 55128 Mainz, Germany
| | - Thomas Klimach
- Particle Chemistry Department, Max Planck Institute for Chemistry , 55128 Mainz, Germany
| | - Thorsten Hoffmann
- Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University Mainz , 55128 Mainz, Germany
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22
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Analysis of the topology of the electron density and the reactivity descriptors of biomolecules with insecticide activity. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1969-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Rindelaub JD, Wiley JS, Cooper BR, Shepson PB. Chemical characterization of α-pinene secondary organic aerosol constituents using gas chromatography, liquid chromatography, and paper spray-based mass spectrometry techniques. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30:1627-1638. [PMID: 27321851 DOI: 10.1002/rcm.7602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 05/05/2016] [Accepted: 05/05/2016] [Indexed: 06/06/2023]
Abstract
RATIONALE Despite ample research into the atmospheric oxidation of α-pinene, an important precursor to biogenic secondary organic aerosol formation, the identification of its reaction products, specifically organic nitrates, which impact atmospheric NOx concentrations, is still incomplete. This negatively impacts our understanding of α-pinene oxidation chemistry and its relation to air quality. METHODS Photochemical chamber experiments were conducted in conjunction with mass spectrometric techniques, including gas chromatography/mass spectrometry (GC/MS), high-performance liquid chromatography/time-of-flight (HPLC/TOF), and paper spray ionization MS, to investigate products from the OH radical initiated oxidation of α-pinene under high NOx conditions. RESULTS Over 30 compounds were tentatively identified, including those newly detected from photochemical chamber studies of α-pinene oxidation, pinocamphenol, fencholenic aldehyde, and α-pinene-derived nitrate isomers. α-Pinene-derived hydroxynitrate isomers were successfully detected using chromatographic methods, demonstrating, for the first time, the identification of individual first-generation organic nitrate products derived from α-pinene. The application of paper spray ionization to particle-phase compounds collected on filters represents a novel method for the direct analysis of filter samples at ambient pressure and temperature. CONCLUSIONS The use of HPLC/TOF and paper spray ionization methods to identify previously unobserved α-pinene-derived products helps lower the uncertainty in α-pinene oxidation chemistry and provides new platforms that can be used to identify and quantify important atmospheric compounds that relate to air quality in a complex sample matrix, such as ambient aerosol particles. Additionally, the use of paper spray ionization for direct filter analysis is a fast, relatively inexpensive sample preparation technique that can be used to reduce sample manipulation from solvent-induced reactions. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Joel D Rindelaub
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
| | - Joshua S Wiley
- Beckman Institute, California Institute of Technology, Pasadena, CA, USA
| | - Bruce R Cooper
- Bindley Bioscience Center, Purdue University, West Lafayette, IN, USA
| | - Paul B Shepson
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
- Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, USA
- Purdue Climate Change Research Center, Purdue University, West Lafayette, IN, USA
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24
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Brüggemann M, Karu E, Hoffmann T. Critical assessment of ionization patterns and applications of ambient desorption/ionization mass spectrometry using FAPA-MS. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:141-149. [PMID: 26889930 DOI: 10.1002/jms.3733] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 10/20/2015] [Accepted: 11/06/2015] [Indexed: 06/05/2023]
Abstract
Ambient desorption/ionization mass spectrometry (MS) has gained growing interest during the last decade due to its high analytical performance and yet simplicity. Here, one of the recently developed ambient desorption/ionization MS sources, the flowing atmospheric-pressure afterglow (FAPA) source, was investigated in detail regarding background ions and typical ionization patterns in the positive as well as the negative ion mode for a variety of compound classes, comprising alkanes, alcohols, aldehydes, ketones, carboxylic acids, organic peroxides and alkaloids. A broad range of signals for adducts and losses was found, besides the usually emphasized detection of quasimolecular ions, i.e. [M + H](+) and [M - H](-) in the positive and the negative mode, respectively. It was found that FAPA-MS is best suited for polar analytes containing nitrogen and/or oxygen functionalities, e.g. carboxylic acids, with low molecular weights and relatively high vapor pressures. In addition, the source was used in proof-of-principle studies, illustrating the capabilities and limitations of the technique: Firstly, traces of cocaine were detected and unambiguously identified on euro banknotes using FAPA ionization in combination with tandem MS, suggesting a correlation between cocaine abundance and age of the banknote. Secondly, FAPA-MS was used for the identification of acidic marker compounds in organic aerosol samples, indicating yet-undiscovered matrix and sample surface effects of ionization pathways in the afterglow region.
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Affiliation(s)
- Martin Brüggemann
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Einar Karu
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Thorsten Hoffmann
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
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