• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Marine Chemistry and Geochemistry (MC&G)
    • View Item
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Marine Chemistry and Geochemistry (MC&G)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WHOASCommunities & CollectionsBy Issue DateAuthorsTitlesKeywordsThis CollectionBy Issue DateAuthorsTitlesKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Characterization of dissolved organic matter in Lake Superior and its watershed using ultrahigh resolution mass spectrometry

    Thumbnail
    View/Open
    Carla LakeSup DOM_rev_111411a_with_figures&suppl_table.pdf (2.455Mb)
    Date
    2011-11-14
    Author
    Minor, Elizabeth C.  Concept link
    Steinbring, Carla J.  Concept link
    Longnecker, Krista  Concept link
    Kujawinski, Elizabeth B.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/5072
    As published
    https://doi.org/10.1016/j.orggeochem.2011.11.007
    Keyword
     Dissolved organic matter; Natural organic matter; Electrospray ionization; Fourier-transform ion cyclotron resonance mass spectrometry; Ultrahigh resolution mass spectrometry; Lake Superior; Van Krevelen diagram; Cluster analysis; Lakes 
    Abstract
    With the advent of ultrahigh resolution mass spectrometry, recent studies have begun to resolve molecular-level relationships between terrestrial and aquatic dissolved organic matter (DOM) in rivers, estuaries, mangrove swamps and their receiving oceans and lakes. Here, we extend ultrahigh resolution mass spectrometry techniques to Lake Superior, the largest freshwater lake in the world by area. Solid-phase extracted samples from the western arm of the lake and its watershed, including swamp, creek, river, lake-river confluence and offshore lake sites were compared using electrospray ionization (ESI) Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Results were analyzed using cluster analysis and van Krevelen diagrams. Chemical similarity appears related to hydrological proximity, terrestrial impact and flow conditions. For example, higher and lower flow samples from the same stream differ from one another. Toivola Swamp, Lake Superior, and the south shore river have diverse arrays of unique molecular formulae.relative to the north shore river and stream sampled in this data set. Lake Superior’s unique elemental formulae, relative to its watershed samples, are primarily in the lignin-like and reduced hydrocarbon regions of van Krevelen diagrams. ESI-amenable Lake Superior DOM also has a higher proportion of formulae containing nitrogen or sulfur relative to the other samples. The degree of overlap among formulae within our data set is consistent with previous ESI FT-ICR-MS characterization of terrestrial, estuarine and marine OM. There appears to be a conserved portion of formulae across natural OM samples, perhaps because these compounds are intrinsically refractory or because they are commonly generated as products of natural reworking processes.
    Description
    Author Posting. © The Author(s), 2011. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Organic Geochemistry 43 (2012): 1-11, doi:10.1016/j.orggeochem.2011.11.007.
    Collections
    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Preprint: Minor, Elizabeth C., Steinbring, Carla J., Longnecker, Krista, Kujawinski, Elizabeth B., "Characterization of dissolved organic matter in Lake Superior and its watershed using ultrahigh resolution mass spectrometry", 2011-11-14, https://doi.org/10.1016/j.orggeochem.2011.11.007, https://hdl.handle.net/1912/5072
     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Using network analysis to discern compositional patterns in ultrahigh resolution mass spectrometry data of dissolved organic matter 

      Longnecker, Krista; Kujawinski, Elizabeth B. (2016-08)
      Marine dissolved organic matter (DOM) has long been recognized as a large and dynamic component of the global carbon cycle. Yet, DOM is chemical varied and complex and these attributes present challenges to the researchers ...
    • Thumbnail

      Identification of possible source markers in marine dissolved organic matter using ultrahigh resolution mass spectrometry 

      Kujawinski, Elizabeth B.; Longnecker, Krista; Blough, Neil V.; Del Vecchio, Rossana; Finlay, Liam; Kitner, Joshua B.; Giovannoni, Stephen J. (2009-04-30)
      Marine dissolved organic matter (DOM) is one of the most heterogeneous and largest pools of reactive carbon on earth, rivaling in mass the carbon in atmospheric carbon dioxide. Nevertheless, the molecular-level composition ...
    • Thumbnail

      Continuous summer export of nitrogen-rich organic matter from the Greenland Ice Sheet inferred by ultrahigh resolution mass spectrometry 

      Lawson, Emily C.; Bhatia, Maya P.; Wadham, Jemma L.; Kujawinski, Elizabeth B. (2014-11)
      Runoff from glaciers and ice sheets has been acknowledged as a potential source of bioavailable dissolved organic matter (DOM) to downstream ecosystems. This source may become increasingly significant as glacial melt rates ...
    All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
    A service of the MBLWHOI Library | About WHOAS
    Contact Us | Send Feedback | Privacy Policy
    Core Trust Logo