Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone

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Description

The general aim of this project is to continue the design and implementation of a new sensor technology that offers the unprecedented levels of specificity needed for analysis of the complex chemical mixtures found at DOE sites nationwide. The new sensor concept combines the elements of electrochemistry, spectroscopy and selective partitioning into a single device that provides three levels of selectivity. The specific goal of this project is the development of a sensor for technetium (Tc) that is applicable to characterizing and monitoring the Vadose Zone and associated subsurface water at the Hanford site. The first goal is a sensor ... continued below

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16 pages

Creation Information

Heineman, William R.; Seliskar, Carl J.; Bryan, Samuel A. & Hubler, Timothy L. June 23, 2003.

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Description

The general aim of this project is to continue the design and implementation of a new sensor technology that offers the unprecedented levels of specificity needed for analysis of the complex chemical mixtures found at DOE sites nationwide. The new sensor concept combines the elements of electrochemistry, spectroscopy and selective partitioning into a single device that provides three levels of selectivity. The specific goal of this project is the development of a sensor for technetium (Tc) that is applicable to characterizing and monitoring the Vadose Zone and associated subsurface water at the Hanford site. The first goal is a sensor that determines technetium in the chemical form pertechnetate (TcO{sub 4}{sup -}). This report summarizes work during 6/16/01-6/15/02 of a three-year project that began on 9/15/99. During this period our efforts have focused on four areas that are discussed in the following sections. Electrochemistry of pertechnetate (TcO{sub 4}{sup -}) at bare ITO and film-coated ITO electrodes; Enhancing sensitivity by increasing analyte absorptivity; Development and characterization of selective films; and Improved field portable spectroelectrochemical sensor.

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16 pages

Notes

OSTI as DE00811916

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  • Other Information: PBD: 23 Jun 2003

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  • Report No.: DOE-ER62311 (2003)
  • Grant Number: FG07-96ER62311
  • DOI: 10.2172/811916 | External Link
  • Office of Scientific & Technical Information Report Number: 811916
  • Archival Resource Key: ark:/67531/metadc739784

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 23, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • Dec. 11, 2017, 2:45 p.m.

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Heineman, William R.; Seliskar, Carl J.; Bryan, Samuel A. & Hubler, Timothy L. Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone, report, June 23, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc739784/: accessed April 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.