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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
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Contaminant-Organic Complexes, Their Structure and Energetics in Surface Decontamination Processes

Description: There are a wide variety of compounds that are naturally occurring biodegradable organic chelates (siderophores) that appear to be more effective at oxide dissolution and actinide complexation than EDTA or other organic acids now used in decontamination processes. These chelates bind hard acids [Fe(III) and actinides(IV)] with extraordinarily high affinities. For example, the binding constant for the siderophore enterobactin with iron is about 1050, and its binding constant for Pu(IV) is estima… more
Date: June 1999
Creator: Ainsworth, Calvin C.; Friedrich, Donald M.; Hay, Benjamin P.; Myneni, Satish C. B. & Traina, Samuel J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Agriculture: Bioconversion of sugar cane molasses

Description: Auxein Corporation is demonstrating for commercial use an organic acid phytochelate, derived from what would otherwise be a discarded portion of sugar cane, that could increase the domestic sugar industry's profit margin from near zero to 7%. Along with helping a struggling industry, the phytochelate will bring substantial improvements to crop and tree production and greatly reduce the environmental threat posed by nitrogen-based fertilizers. Currently, the amount of fertilizer used produces ha… more
Date: September 29, 1999
Creator: Simon, P.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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