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Electrospray mass spectrometry to study lake water DOM and effects of microbial degradation
Institute of Applied Environmental Research (ITM), Stockholm University, Sweden.
Linköping University, Department of Thematic Studies, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
Institute of Applied Environmental Research (ITM), Stockholm University, Sweden.
Department of Limnology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden.
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2005 (English)In: International Journal of Environmental Analytical Chemistry, ISSN 0306-7319, E-ISSN 1029-0397, Vol. 85, no 1, 15-27 p.Article in journal (Refereed) Published
Abstract [en]

Qualitative analysis of lake water dissolved organic matter (DOM) was carried out using electrospray ionization mass spectrometry (ESI MS) without prior clean-up or chromatography, showing the potential of ESI MS as a rapid method to analyse qualitative differences between DOM with different environmental properties. Spectra were evaluated in terms of the relative ion abundance in certain mass to charge ranges (m/z(range)), and the mass-to-charge average (m/z(average)). Lake water DOM from two different sources was used. In addition, DOM from both sources that had been subjected to microbial degradation under different oxygen regimes was analysed. ESI MS results were compared with those of UV absorbance and pollutant binding capacity (pyrene and atrazine). The results from all methods indicated qualitative differences between the DOM from different lakes, but only minor qualitative changes when comparing oxic and anoxic degradation. To detect those small differences the m/z(range) proved to be the more sensitive evaluation method, compared to the m/z(average).

Place, publisher, year, edition, pages
Taylor & Francis Group, 2005. Vol. 85, no 1, 15-27 p.
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:liu:diva-28238DOI: 10.1080/0306731042000303198ISI: 000226674100002Scopus ID: 2-s2.0-27744521553OAI: oai:DiVA.org:liu-28238DiVA: diva2:248998
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2017-02-09Bibliographically approved

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Bastviken, David

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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  • Other style
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  • de-DE
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  • nn-NB
  • sv-SE
  • Other locale
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