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Ce-MXRF: the power of separation with bench top element sensitive detection

Description: Capillary electrophoresis (CE) is a proven separation technique that offers highly efficient separation, rapid analysis, and minute sample consumption. When combined with a element specific detection scheme, it can be used for chemical speciation of biologically and environmentally relevant species such as metal containing proteins. In this study, a new tool was developed for separation and elemental detection. Specifically, a simple CE apparatus was constructed using a thin-walled fused Si cap… more
Date: January 1, 2002
Creator: Miller, T. C. (Thomasin C.); Joseph, M. R. (Martha R.) & Havrilla, G. J. (George J.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Materials characterization using micro-x-ray fluorescence elemental imaging.

Description: Materials characterization continues to be a key challenge in a variety of programs. Although bulk elemental composition provides overall concentration of both major and trace elements, the distribution of these elements both on micro and macro scales can determine the performance and ultimately the physical properties of the materials. Hence elemental imaging can provide a new level of information for major and in some cases bulk trace concentrations of elements. Micro X-ray fluorescence (MXRF… more
Date: January 1, 2002
Creator: Havrilla, G. J. (George J.); Miller, T. C. (Thomasin C.) & Joseph, M. R. (Martha R.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nanodroplet quantification: pushing the detection limits of micro x-ray fluorescence

Description: In this study, detection limits for a variety of elements were determined on an EDAX Eagle I1 MXRF system equipped with a polycapillary and a Rh X-ray source. Both mass, volume, and spot diameter detection limits were established using dried spot technology, where various volumes and/or masses of different elements were deposited on different substrates, dried, and quantitatively analyzed by MXRF. Preliminary results have shown that sub-nanogram levels of material can be detected in less than 2… more
Date: January 1, 2002
Creator: Miller, T. C. (Thomasin C.) & Havrilla, G. J. (George J.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nuclear fuels technologies: Thermally induced gallium removal system (TIGRS), fiscal year 1998 research and development test plan

Description: This document details the research and development (R and D) activities that will be conducted in Fiscal Year 1998 (FY98) by the Thermally Induced Gallium Removal System (TIGRS) team for the Department of Energy Office of Fissile Materials Disposition. This work is a continuation and extension of experimental activities that have been conducted in support of using weapons-derived plutonium in the fabrication of mixed-oxide (MOX) nuclear fuel for reactor-based plutonium disposition. The ultimate… more
Date: December 24, 1997
Creator: Buksa, J. J.; Butt, D. P.; Chidester, K.; DeMuth, S. F.; Havrilla, G. J.; James, C. A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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