Gledhill, Martha; Hollister, Adrienne; Siedel, Michael; Zhu, Kechen; Achterberg, Eric Pieter; Dittmar, Thorsten; Koschinsky, Andrea (2022): Trace metal stoichiometry of dissolved organic matter in the Amazon Estuary [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.941455
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Abstract:
The main component of this data base comprises elemental concentrations associated with dissolved organic matter obtained from samples collected on Meteor cruise M147 (May 2018). The data supports the manuscript Trace metal stoichiometry of dissolved organic matter in the Amazon Estuary. Dissolved organic matter (DOM) comprises a distinct component of the Earth's hydrosphere and provides a link between the biogeochemical cycles of carbon, nutrients, and trace metals (TMs). Binding of TMs to DOM is thought to result in a TM pool with DOM-like biogeochemistry. In this manuscript, we determined elemental stoichiometries of aluminium, iron, copper, nickel, zinc, cobalt and manganese associated with a fraction of the DOM pool isolated by solid phase extraction at ambient pH (DOMSPE-amb) from the Amazon estuary. We found the rank order of TM stoichiometry within the DOMSPE-amb fraction was underpinned by the chemical periodicity of the TM. Furthermore, the biogeochemistry of the TMSPE-amb pool was related to the chemical hardness of the TM ion. Thus, the biogeochemistry of TMs bound to the DOMSPE-amb component in the Amazon estuary was determined by the chemical nature of the TM and not by that of the DOMSPE-amb.
Supplement to:
Gledhill, Martha; Hollister, Adrienne; Seidel, Michael; Zhu, Kechen; Achterberg, Eric Pieter; Dittmar, Thorsten; Koschinsky, Andrea (2022): Trace metal stoichiometry of dissolved organic matter in the Amazon plume. Science Advances, 8(31), eabm2249, https://doi.org/10.1126/sciadv.abm2249
Related to:
Gledhill, Martha; Hollister, Adrienne; Siedel, Michael; Zhu, Kechen; Achterberg, Eric Pieter; Dittmar, Thorsten; Koschinsky, Andrea (2022): Hydrochemistry of water samples from CTD and towfish during METEOR cruise M147. PANGAEA, https://doi.org/10.1594/PANGAEA.941355
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. GL807/2-1: Development of a consistent thermodynamic model of trace element - organic matter interactions in the Ocean
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Description | Description | Gledhill, Martha | |||
| 2 | Binary Object | Binary | Gledhill, Martha | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Gledhill, Martha | ||
| 4 | Binary Object (Media Type) | Binary (Type) | Gledhill, Martha |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
23 data points
Data
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| 1 Description | 2 Binary | 3 Binary (Size) [Bytes] | 4 Binary (Type) |
|---|---|---|---|
| Table containing water column data from stations sampled for this study. | Water_column_parameters.csv | 7.7 kBytes | text/plain |
| Table containing data obtained from size exclusion chromatography. a) Concentrations of elements S, P, Fe, Al, Cu, Zn, Ni, Mn and Co observed in samples obtained as detected by ICP-MS. | |||
| b) UV absorbance (254 nm) per litre of seawater observed with a diode array detector | |||
| c) Total ion counts per litre of seawater obtained by summing peak area of all ions with retention times co-eluting with UV 254 and element peaks obtained on ESI-MS analysis in positive and negative ion modes. | SEC_data.csv | 4.8 kBytes | text/plain |
| Table containing data obtained from reversed phase chromatography. a) Concentrations of elements S, P, Fe, Al, Cu, Zn, Ni, Mn and Co observed in samples obtained as detected by ICP-MS. b) UV absorbance (254 nm) per litre of seawater observed with a diode array detector c) Total ion counts per litre of seawater obtained by summing peak area of all ions with retention times coeluting with UV 254 and element peaks obtained on ESI-MS analysis in positive and negative ion modes. | RPLC_data.csv | 5.2 kBytes | text/plain |
| Feature lists obtained for ESI-MS analysis for size exclusion and reversed phase chromatography in positive and negative ion modes | Feature_list_SEC_positive.csv | 12.3 MBytes | text/plain |
| Feature lists obtained for ESI-MS analysis for size exclusion and reversed phase chromatography in positive and negative ion modes | Feature_list_SEC_negative.csv | 1.3 MBytes | text/plain |
| Feature lists obtained for ESI-MS analysis for size exclusion and reversed phase chromatography in positive and negative ion modes | Feature_list_RPLC_positive.csv | 5.9 MBytes | text/plain |
| Feature lists obtained for ESI-MS analysis for size exclusion and reversed phase chromatography in positive and negative ion modes | Feature_list_RPLC_negative.csv | 3.1 MBytes | text/plain |
| List of ions used to exclude acetate and plasticizer ions from the feature lists. | Exclusion_list_Nylon_PPG_PEG.csv | 31.2 kBytes | text/plain |
| List of ions used to exclude acetate and plasticizer ions from the feature lists. | Exclusion_list_acetate_clusters.csv | 8.3 kBytes | text/plain |
| Input data for speciation calculations. This data can be copied and pasted into the input field in the speciation program ORCHESTRA. | Orchestra_input.csv | 4 kBytes | text/plain |
| Output of speciation calculations obtained by ORCHESTRA.ȉOrchestra_output.csv |