Data

Diffusive Gradients in Thin Films (DGT) Methodology for Selective and Spatially Discriminating Binding of Metal Ions

Australian Antarctic Division
Hadaad, P. ; HADAAD, PAUL
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/ASAC_2665&rft.title=Diffusive Gradients in Thin Films (DGT) Methodology for Selective and Spatially Discriminating Binding of Metal Ions&rft.identifier=http://data.aad.gov.au/metadata/ASAC_2665&rft.publisher=Australian Antarctic Data Centre&rft.description=Metadata record for data from ASAC Project 2665See the link below for public details on this project.The Antarctic environment with its harsh climatic conditions, minimal human activity and its unique ecosystems is unlike any of the World's other environments. As such, it is important that an understanding of the Antarctic environment is developed in order to gain a full appreciation of the impacts of human activities in Antarctica and to determine the most effective means to remediate and protect the Antarctic environment. To achieve these goals, new sensitive and selective techniques for sampling metal contaminant levels in marine sediments are being developed.The project is not an environmental study of the Antarctic environment (ie no metal concentrations in water or sediments), but rather the development of an analytical technique for use in Antarctica. We are still in the process of developing this technique and much of the development phase has involved qualitative assessment rather than generating quantitative data. We are currently trialling the technique in the lab and will conduct field trials in the Derwent Estuary.Taken from the abstract of the referenced paper:A novel binding phase was developed for use in diffusive gradients in thin-film (DGT) sampling for Cu(II) by employing methylthymol blue as a chelating and chromogenic agent. Methylthymol blue was adsorbed onto beads of Dowex 1x8 resin (200-400 mesh) and the resin beads were then immobilised onto an adhesive disc. Analysis of exposed binding discs by either UV-vis spectrophotometry or computer imaging densitometry provided robust quantification of adsorbed Cu(II) in the 0.2-1 micro gcm-2 range, allowing detection at micro gL-1 concentrations in the test solution (ca. 17 micro gL-1 for a 24 h deployment), and in goodagreement with established DGT theory. The method was shown to be a potential replacement for binding phases based on Chelex 100 where a colorimetric response to a specific metal is desired.Progress Code: completedStatement: The Dates provided in temporal coverage are approximate only, and represent the beginning and end of the 2005 - 2008 Antarctic seasons. The latitudes and longitudes provided in spatial coverage are approximate only. This project only dealt with the development of a technique, and Antarctic trials or data collection never took place.&rft.creator=Hadaad, P. &rft.creator=HADAAD, PAUL &rft.date=2006&rft.coverage=westlimit=110.0; southlimit=-67.0; eastlimit=111.0; northlimit=-66.0&rft.coverage=westlimit=110.0; southlimit=-67.0; eastlimit=111.0; northlimit=-66.0&rft.coverage=westlimit=147.0; southlimit=-43.25; eastlimit=147.5; northlimit=-42.75&rft.coverage=westlimit=147.0; southlimit=-43.25; eastlimit=147.5; northlimit=-42.75&rft_rights=A pdf copy of the referenced paper is available for download to AAD staff only.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2665 when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=environment&rft_subject=oceans&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC&rft_subject=EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS&rft_subject=EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING&rft_subject=EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > ION EXCHANGE&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY&rft_subject=contaminants&rft_subject=benthic&rft_subject=heavy metals&rft_subject=thin films&rft_subject=diffusive gradients&rft_subject=SHIPS&rft_subject=LABORATORY&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA&rft_subject=CONTINENT > ANTARCTICA&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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CC-BY

Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

A pdf copy of the referenced paper is available for download to AAD staff only.

This data set conforms to the CCBY Attribution License
(http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2665 when using these data.

This metadata record is publicly available.

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Full description

Metadata record for data from ASAC Project 2665

See the link below for public details on this project.

The Antarctic environment with its harsh climatic conditions, minimal human activity and its unique ecosystems is unlike any of the World's other environments. As such, it is important that an understanding of the Antarctic environment is developed in order to gain a full appreciation of the impacts of human activities in Antarctica and to determine the most effective means to remediate and protect the Antarctic environment. To achieve these goals, new sensitive and selective techniques for sampling metal contaminant levels in marine sediments are being developed.

The project is not an environmental study of the Antarctic environment (ie no metal concentrations in water or sediments), but rather the development of an analytical technique for use in Antarctica. We are still in the process of developing this technique and much of the development phase has involved qualitative assessment rather than generating quantitative data. We are currently trialling the technique in the lab and will conduct field trials in the Derwent Estuary.

Taken from the abstract of the referenced paper:

A novel binding phase was developed for use in diffusive gradients in thin-film (DGT) sampling for Cu(II) by employing methylthymol blue as a chelating and chromogenic agent. Methylthymol blue was adsorbed onto beads of Dowex 1x8 resin (200-400 mesh) and the resin beads were then immobilised onto an adhesive disc. Analysis of exposed binding discs by either UV-vis spectrophotometry or computer imaging densitometry provided robust quantification of adsorbed Cu(II) in the 0.2-1 micro gcm-2 range, allowing detection at micro gL-1 concentrations in the test solution (ca. 17 micro gL-1 for a 24 h deployment), and in good
agreement with established DGT theory. The method was shown to be a potential replacement for binding phases based on Chelex 100 where a colorimetric response to a specific metal is desired.

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Progress Code: completed
Statement: The Dates provided in temporal coverage are approximate only, and represent the beginning and end of the 2005 - 2008 Antarctic seasons. The latitudes and longitudes provided in spatial coverage are approximate only. This project only dealt with the development of a technique, and Antarctic trials or data collection never took place.

Data time period: 2005-10-01 to 2008-03-31

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111,-66 111,-67 110,-67 110,-66 111,-66

110.5,-66.5

147.5,-42.75 147.5,-43.25 147,-43.25 147,-42.75 147.5,-42.75

147.25,-43

text: westlimit=110.0; southlimit=-67.0; eastlimit=111.0; northlimit=-66.0

text: westlimit=147.0; southlimit=-43.25; eastlimit=147.5; northlimit=-42.75

Subjects
AMD | AMD/AU | CEOS | CONTINENT > ANTARCTICA | CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY | EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS | EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING | EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > ION EXCHANGE | GEOGRAPHIC REGION > POLAR | LABORATORY | SHIPS | benthic | contaminants | diffusive gradients | environment | heavy metals | oceans | thin films |

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Other Information
Public information for ASAC project 2665 (PROJECT HOME PAGE)

uri : https://projects.aad.gov.au/search_projects_results.cfm?project_no=2665

Download point for the publication - AAD Staff Only (VIEW RELATED INFORMATION)

uri : http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=3462

Citation reference for this metadata record and dataset (VIEW RELATED INFORMATION)

uri : http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2665

Identifiers
  • global : ASAC_2665