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{sup 99}Tc bioassay by inductively coupled plasma mass spectrometry (ICP-MS)

Description: A means of analyzing {sup 99}Tc in urine by inductively coupled plasma mass spectrometry (ICP-MS) has been developed. Historically, {sup 99}Tc analysis was based on the radiometric detection of the 293 keV E{sub Max} beta decay product by liquid scintillation or gas flow proportional counting. In a urine matrix, the analysis of{sup 99}Tc is plagued with many difficulties using conventional radiometric methods. Difficulties originate during chemical separation due to the volatile nature of Tc{su… more
Date: May 1, 1998
Creator: Lewis, L. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reactions Involved in Fingerprint Development Using the Cyanoacrylate - Fuming Method

Description: The Learning Objective is to present the basic chemistry research findings to the forensic community regarding development of latent fingerprints using the cyanoacrylate fuming method. Chemical processes involved in the development of latent fingerprints using the cyanoacrylate fuming method have been studied, and will be presented. Two major types of latent prints have been investigated--clean (eccrine) and oily (sebaceous) prints. Scanning electron microscopy (SEM) was used as a tool for dete… more
Date: July 30, 2001
Creator: Lewis, L. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Analysis of Dyes Extracted from Millimeter-Size Nylon Fibers by Micellar Electrokinetic Chromatography

Description: The Learning Objective is to present to the forensic community a potential qualitative/quantitative method for trace-fiber color comparisons using micellar electrokinetic chromatography (MEKC). Developing a means of analyzing extracted dye constituents from millimeter-size nylon fiber samples was the objective of this research initiative. Aside from ascertaining fiber type, color evaluation and source comparison of trace-fiber evidence plays a critical role in forensic-fiber examinations. Liter… more
Date: July 30, 2001
Creator: Lewis, L. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Aerosol-Assisted Solid Debris Collection for the National Ignition Facility

Description: The National Ignition Facility (NIF) has been completed and has made its first shots on-target. While upcoming experiments will be focused on achieving ignition, a variety of subsequent experiments are planned for the facility, including measurement of cross sections, astrophysical measurements, and investigation of hydrodynamic instability in the target capsule. In order to successfully execute several of these planned experiments, the ability to collect solid debris following a NIF capsule sh… more
Date: May 21, 2010
Creator: Nelson, S. L.; Shaughnessy, D. A.; Moody, K. J.; Ivanov, V. V.; Astanovitskiy, A. L.; Lewis, L. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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