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Characterisation of the semi-volatile component of Dissolved Organic Matter by Thermal Desorption - Proton Transfer Reaction - Mass Spectrometry

Materic, Dusan and Peacock, Michael and Kent, Matthew and Cook, Sarah and Gauci, Vincent and Röckmann, Thomas and Holzinger, Rupert (2017). Characterisation of the semi-volatile component of Dissolved Organic Matter by Thermal Desorption - Proton Transfer Reaction - Mass Spectrometry. Scientific Reports. 7, 1-8
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Official URL: https://dx.doi.org/10.1038/s41598-017-16256-x

Abstract

Proton Transfer Reaction - Mass Spectrometry (PTR-MS) is a sensitive, soft ionisation method suitable for qualitative and quantitative analysis of volatile and semi-volatile organic vapours. PTR-MS is used for various environmental applications including monitoring of volatile organic compounds (VOCs) emitted from natural and anthropogenic sources, chemical composition measurements of aerosols, etc. Here we apply thermal desorption PTR-MS for the first time to characterise the chemical composition of dissolved organic matter (DOM). We developed a clean, low-pressure evaporation/sublimation system to remove water from samples and coupled it to a custom-made thermal desorption unit to introduce the samples to the PTR-MS. Using this system, we analysed waters from intact and degraded peat swamp forest of Kalimantan, Indonesian Borneo, and an oil palm plantation and natural forest in Sarawak, Malaysian Borneo. We detected more than 200 organic ions from these samples and principal component analysis allowed clear separation of the different sample origins based on the composition of organic compounds. The method is sensitive, reproducible, and provides a new and comparatively cheap tool for a rapid characterisation of water and soil DOM.

Authors/Creators:Materic, Dusan and Peacock, Michael and Kent, Matthew and Cook, Sarah and Gauci, Vincent and Röckmann, Thomas and Holzinger, Rupert
Title:Characterisation of the semi-volatile component of Dissolved Organic Matter by Thermal Desorption - Proton Transfer Reaction - Mass Spectrometry
Series/Journal:Scientific Reports (2045-2322)
Year of publishing :2017
Volume:7
Page range:1-8
Number of Pages:8
Publisher:Nature
ISSN:2045-2322
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:P Natural resources > P33 Soil chemistry and physics
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Agrovoc terms:soil analysis, water analysis, organic matter, chemical composition
Keywords:Proton Transfer Reaction – Mass Spectrometry, PTR-MS, thermal desorption, water, soil, peat swamp forest, oil palm plantation, Borneo
URN:NBN:urn:nbn:se:slu:epsilon-e-4605
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4605
Additional ID:
Type of IDID
DOI10.1038/s41598-017-16256-x
Web of Science (WoS)000415983600024
ID Code:14907
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:11 Jan 2018 07:23
Metadata Last Modified:11 Jan 2018 11:39

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