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Title: Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone

Abstract

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.

Authors:
; ; ;
Publication Date:
Research Org.:
University of Cincinnati, Dept. of Chemistry, P.O. Box 210172, Cincinnati, OH 45221-0172 (US)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE Office of Environmental Management; Office of Science & Technology (US)
OSTI Identifier:
811916
Report Number(s):
DOE-ER62311 (2003)
ID: 070010; TRN: US200313%%2
DOE Contract Number:  
FG07-96ER62311
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 23 Jun 2003
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTIVITY; DESIGN; ELECTROCHEMISTRY; MONITORING; PERTECHNETATES; SENSITIVITY; SPECIFICITY; TECHNETIUM; SOIL CHEMISTRY; GROUND WATER; HANFORD RESERVATION; SPECTROMETERS; SENSOR; PERTECHNETATE; VADOSE ZONE; SPECTROELECTROCHEMISTRY

Citation Formats

Heineman, William R, Seliskar, Carl J, Bryan, Samuel A, and Hubler, Timothy L. Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone. United States: N. p., 2003. Web. doi:10.2172/811916.
Heineman, William R, Seliskar, Carl J, Bryan, Samuel A, & Hubler, Timothy L. Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone. United States. https://doi.org/10.2172/811916
Heineman, William R, Seliskar, Carl J, Bryan, Samuel A, and Hubler, Timothy L. 2003. "Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone". United States. https://doi.org/10.2172/811916. https://www.osti.gov/servlets/purl/811916.
@article{osti_811916,
title = {Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone},
author = {Heineman, William R and Seliskar, Carl J and Bryan, Samuel A and Hubler, Timothy L},
abstractNote = {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.},
doi = {10.2172/811916},
url = {https://www.osti.gov/biblio/811916}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {6}
}