Journal article
Characterisation of riverine dissolved organic matter using a complementary suite of chromatographic and mass spectrometric methods
Biogeochemistry
2022
Abstract
Dissolved organic matter (DOM) plays a fundamental role in nutrient cycling dynamics in riverine systems. Recent research has confirmed that the concentration of riverine DOM is not the only factor regulating its functional significance; the need to define the chemical composition of DOM is a priority. Past studies of riverine DOM rested on bulk quantification, however technological advancements have meant there has been a shift towards analytical methods which allow the characterisation of DOM either at compound class or more recently molecular level. However, it is important to consider that all analytical methods only consider a defined analytical window. Thus, herein, we explore the use of a hierarchy of methods which can be used in combination for the investigation of a wide range of DOM chemistries. By using these methods to investigate the DOM composition of a range of streams draining catchments of contrasting environmental character, a wide range of compounds were identified across a range of polarities and molecular weight, thereby extending the analytical window. Through the elucidation of the DOM character in stream samples, information can be collected about likely the sources of DOM. The identification of individual key compounds within the DOM pool is a key step in the design of robust and informative bioassay experiments, used to understand in-stream ecosystem responses. This is critical if we are to assess the role of DOM as a bioavailable nutrient resource and/or ecotoxicological factor in freshwater.
Details
- Title
- Characterisation of riverine dissolved organic matter using a complementary suite of chromatographic and mass spectrometric methods
- Authors/Creators
- C.E.M. Lloyd (Author/Creator) - University of BristolL.A. Mena-Rivera (Author/Creator) - University of BristolJ.A. Pemberton (Author/Creator) - University of BristolP.J. Johnes (Author/Creator) - University of BristolD.L. Jones (Author/Creator) - Murdoch UniversityC.A. Yates (Author/Creator) - AtkinsF.L. Brailsford (Author/Creator) - Murdoch UniversityH.C. Glanville (Author/Creator) - Keele UniversityC.A. McIntyre (Author/Creator) - Ashleigh EnvironmentalR.P. Evershed (Author/Creator) - University of Bristol
- Publication Details
- Biogeochemistry
- Publisher
- Springer Verlag
- Identifiers
- 991005541291007891
- Copyright
- © 2022 The Authors.
- Murdoch Affiliation
- Centre for Sustainable Farming Systems; Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.45 Soil Science
- 3.45.1049 Dissolved Organic Matter
- Web Of Science research areas
- Environmental Sciences
- Geosciences, Multidisciplinary
- ESI research areas
- Environment/Ecology