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Thermospray mass spectrometry ionization processes fundamental mechanisms for speciation, separation and characterization of organic complexants in DOE wastes. 1998 annual progress report

Description: 'This is a three-year project which started on October 1, 1997. This report summarizes the progress achieved for the first eight months of the study (through May, 1998). Thermospray positive ion mass spectra of seven different organic complexants have been defined in a water:methanol (1:1 by volume) solvent system that was buffered with 0.1 M ammonium acetate (pH = 6.7). These complexants were imidodiacetic acid (IDA), ethylenediamine-N,N{prime}-diacetic acid (EDDA), N-(2-hydroxyethyl)iminodiac… more
Date: June 1, 1998
Creator: Caton, John E.; Bostick, Debra T. & Carr, Peter W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermospray Mass Spectrometry Ionization Processes Fundamental Mechanisms for Speciation, Separation and Characterization of Organic complexants in DOE Wastes

Description: The overall objective is to develop and enhance our understanding of chemical equilibria for major organic complexant species (chelators, chelator fragments, small organic acids and their products) in multi-component aqueous matrices such as the mixtures of DOE stored wastes. To progress toward this objective, organic complexants must be separated and speciated in mixtures of high ionic strength. HPLC employing zirconia-based stationary phases is being studied in order to understand the separat… more
Date: June 1, 1999
Creator: Caton, John E.; Bostick, Debra T.; Carr, Peter W. & Mabbott, Gary
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermospray Mass Spectrometry Ionization Processes: Fundamental Mechanisms for Speciation, Separation and Characterization of Organic Complexants in DOE Wastes

Description: The overall objective of this research was to develop and enhance our understanding of the identity of major organic complexant species and their products with metals in aqueous mixtures such as those found in DOE radioactive tank wastes. Our approach to achieving this objective was a series of incremental studies involving cooperative efforts at ORNL and at the University of Minnesota. Investigations at ORNL characterized soft ionization mass spectrometry processes for the complexant species b… more
Date: December 31, 2001
Creator: Bostick, Debra T.; Caton, John E. & Carr, Mabbott, Gary
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermospray Mass Spectrometry Ionization Processes Fundamental Mechanisms for Speciation, Separation and Characterization of Organic Complexants in DOE Wastes

Description: The overall objective of this research is to develop and enhance our understanding of the chemical equilibria for major organic complexant species and their products with metals in aqueous mixtures such as those found in DOE radioactive tank wastes. Our approach to achieving this objective is a series of incremental studies involving cooperative efforts at Oak Ridge National Laboratory (ORNL) and at the University of Minnesota. Investigations at ORNL are characterizing soft ionization mass spec… more
Date: June 1, 1999
Creator: Caton, John E.; Bostick, Debra, T.; Carr, Peter W. & Mabbott, Gary
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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