Desorption atmospheric pressure photoionization high-resolution mass spectrometry

a complementary approach for the chemical analysis of atmospheric aerosols

Jevgeni Parshintsev, Anu Vaikkinen, Katriina Lipponen, Vladimir Vrkoslav, Josef Cvacka, Risto Kostiainen, Tapio Kotiaho, Kari Hartonen, Marja-Liisa Riekkola, Tiina J. Kauppila

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Sammanfattning

RATIONALE: On-line chemical characterization methods of atmospheric aerosols are essential to increase our understanding of physicochemical processes in the atmosphere, and to study biosphere-atmosphere interactions. Several techniques, including aerosol mass spectrometry, are nowadays available, but they all suffer from some disadvantages. In this research, desorption atmospheric pressure photoionization high-resolution (Orbitrap) mass spectrometry (DAPPI-HRMS) is introduced as a complementary technique for the fast analysis of aerosol chemical composition without the need for sample preparation. METHODS: Atmospheric aerosols from city air were collected on a filter, desorbed in a DAPPI source with a hot stream of toluene and nitrogen, and ionized using a vacuum ultraviolet lamp at atmospheric pressure. To study the applicability of the technique for ambient aerosol analysis, several samples were collected onto filters and analyzed, with the focus being on selected organic acids. To compare the DAPPI-HRMS data with results obtained by an established method, each filter sample was divided into two equal parts, and the second half of the filter was extracted and analyzed by liquid chromatography/mass spectrometry (LC/MS). RESULTS: The DAPPI results agreed with the measured aerosol particle number. In addition to the targeted acids, the LC/MS and DAPPI-HRMS methods were found to detect different compounds, thus providing complementary information about the aerosol samples. CONCLUSIONS: DAPPI-HRMS showed several important oxidation products of terpenes, and numerous compounds were tentatively identified. Thanks to the soft ionization, high mass resolution, fast analysis, simplicity and on-line applicability, the proposed methodology has high potential in the field of atmospheric research. Copyright (C) 2015 John Wiley & Sons, Ltd.
Originalspråkengelska
TidskriftRapid Communications in Mass Spectrometry
Volym29
Sidor (från-till)1233-1241
Antal sidor9
ISSN0951-4198
DOI
StatusPublicerad - 2015
MoE-publikationstypA1 Tidskriftsartikel-refererad

Vetenskapsgrenar

  • 116 Kemi

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@article{02e706e4c3c34639bda5e42aa3cf51cc,
title = "Desorption atmospheric pressure photoionization high-resolution mass spectrometry: a complementary approach for the chemical analysis of atmospheric aerosols",
abstract = "RATIONALE: On-line chemical characterization methods of atmospheric aerosols are essential to increase our understanding of physicochemical processes in the atmosphere, and to study biosphere-atmosphere interactions. Several techniques, including aerosol mass spectrometry, are nowadays available, but they all suffer from some disadvantages. In this research, desorption atmospheric pressure photoionization high-resolution (Orbitrap) mass spectrometry (DAPPI-HRMS) is introduced as a complementary technique for the fast analysis of aerosol chemical composition without the need for sample preparation. METHODS: Atmospheric aerosols from city air were collected on a filter, desorbed in a DAPPI source with a hot stream of toluene and nitrogen, and ionized using a vacuum ultraviolet lamp at atmospheric pressure. To study the applicability of the technique for ambient aerosol analysis, several samples were collected onto filters and analyzed, with the focus being on selected organic acids. To compare the DAPPI-HRMS data with results obtained by an established method, each filter sample was divided into two equal parts, and the second half of the filter was extracted and analyzed by liquid chromatography/mass spectrometry (LC/MS). RESULTS: The DAPPI results agreed with the measured aerosol particle number. In addition to the targeted acids, the LC/MS and DAPPI-HRMS methods were found to detect different compounds, thus providing complementary information about the aerosol samples. CONCLUSIONS: DAPPI-HRMS showed several important oxidation products of terpenes, and numerous compounds were tentatively identified. Thanks to the soft ionization, high mass resolution, fast analysis, simplicity and on-line applicability, the proposed methodology has high potential in the field of atmospheric research. Copyright (C) 2015 John Wiley & Sons, Ltd.",
keywords = "116 Chemical sciences, SECONDARY ORGANIC AEROSOL, OXIDATION-PRODUCTS, BETA-CARYOPHYLLENE, PARTICLE FORMATION, CONIFEROUS FOREST, ACIDS, IONIZATION, IDENTIFICATION, CONSTITUENTS, MONOTERPENES",
author = "Jevgeni Parshintsev and Anu Vaikkinen and Katriina Lipponen and Vladimir Vrkoslav and Josef Cvacka and Risto Kostiainen and Tapio Kotiaho and Kari Hartonen and Marja-Liisa Riekkola and Kauppila, {Tiina J.}",
year = "2015",
doi = "10.1002/rcm.7219",
language = "English",
volume = "29",
pages = "1233--1241",
journal = "Rapid Communications in Mass Spectrometry",
issn = "0951-4198",
publisher = "John Wiley & Sons Ltd.",

}

TY - JOUR

T1 - Desorption atmospheric pressure photoionization high-resolution mass spectrometry

T2 - a complementary approach for the chemical analysis of atmospheric aerosols

AU - Parshintsev, Jevgeni

AU - Vaikkinen, Anu

AU - Lipponen, Katriina

AU - Vrkoslav, Vladimir

AU - Cvacka, Josef

AU - Kostiainen, Risto

AU - Kotiaho, Tapio

AU - Hartonen, Kari

AU - Riekkola, Marja-Liisa

AU - Kauppila, Tiina J.

PY - 2015

Y1 - 2015

N2 - RATIONALE: On-line chemical characterization methods of atmospheric aerosols are essential to increase our understanding of physicochemical processes in the atmosphere, and to study biosphere-atmosphere interactions. Several techniques, including aerosol mass spectrometry, are nowadays available, but they all suffer from some disadvantages. In this research, desorption atmospheric pressure photoionization high-resolution (Orbitrap) mass spectrometry (DAPPI-HRMS) is introduced as a complementary technique for the fast analysis of aerosol chemical composition without the need for sample preparation. METHODS: Atmospheric aerosols from city air were collected on a filter, desorbed in a DAPPI source with a hot stream of toluene and nitrogen, and ionized using a vacuum ultraviolet lamp at atmospheric pressure. To study the applicability of the technique for ambient aerosol analysis, several samples were collected onto filters and analyzed, with the focus being on selected organic acids. To compare the DAPPI-HRMS data with results obtained by an established method, each filter sample was divided into two equal parts, and the second half of the filter was extracted and analyzed by liquid chromatography/mass spectrometry (LC/MS). RESULTS: The DAPPI results agreed with the measured aerosol particle number. In addition to the targeted acids, the LC/MS and DAPPI-HRMS methods were found to detect different compounds, thus providing complementary information about the aerosol samples. CONCLUSIONS: DAPPI-HRMS showed several important oxidation products of terpenes, and numerous compounds were tentatively identified. Thanks to the soft ionization, high mass resolution, fast analysis, simplicity and on-line applicability, the proposed methodology has high potential in the field of atmospheric research. Copyright (C) 2015 John Wiley & Sons, Ltd.

AB - RATIONALE: On-line chemical characterization methods of atmospheric aerosols are essential to increase our understanding of physicochemical processes in the atmosphere, and to study biosphere-atmosphere interactions. Several techniques, including aerosol mass spectrometry, are nowadays available, but they all suffer from some disadvantages. In this research, desorption atmospheric pressure photoionization high-resolution (Orbitrap) mass spectrometry (DAPPI-HRMS) is introduced as a complementary technique for the fast analysis of aerosol chemical composition without the need for sample preparation. METHODS: Atmospheric aerosols from city air were collected on a filter, desorbed in a DAPPI source with a hot stream of toluene and nitrogen, and ionized using a vacuum ultraviolet lamp at atmospheric pressure. To study the applicability of the technique for ambient aerosol analysis, several samples were collected onto filters and analyzed, with the focus being on selected organic acids. To compare the DAPPI-HRMS data with results obtained by an established method, each filter sample was divided into two equal parts, and the second half of the filter was extracted and analyzed by liquid chromatography/mass spectrometry (LC/MS). RESULTS: The DAPPI results agreed with the measured aerosol particle number. In addition to the targeted acids, the LC/MS and DAPPI-HRMS methods were found to detect different compounds, thus providing complementary information about the aerosol samples. CONCLUSIONS: DAPPI-HRMS showed several important oxidation products of terpenes, and numerous compounds were tentatively identified. Thanks to the soft ionization, high mass resolution, fast analysis, simplicity and on-line applicability, the proposed methodology has high potential in the field of atmospheric research. Copyright (C) 2015 John Wiley & Sons, Ltd.

KW - 116 Chemical sciences

KW - SECONDARY ORGANIC AEROSOL

KW - OXIDATION-PRODUCTS

KW - BETA-CARYOPHYLLENE

KW - PARTICLE FORMATION

KW - CONIFEROUS FOREST

KW - ACIDS

KW - IONIZATION

KW - IDENTIFICATION

KW - CONSTITUENTS

KW - MONOTERPENES

U2 - 10.1002/rcm.7219

DO - 10.1002/rcm.7219

M3 - Article

VL - 29

SP - 1233

EP - 1241

JO - Rapid Communications in Mass Spectrometry

JF - Rapid Communications in Mass Spectrometry

SN - 0951-4198

ER -