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NCJRS Abstract

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  NCJ Number: NCJ 232133   Add to Shopping cart   Find in a Library
  Title: Elemental Analysis of Glass and Paint Materials by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) for Forensic Application
  Document URL: PDF 
  Author(s): Tatiana Trejos ; Waleska Castro ; Jose R. Almirall
  Date Published: 10/2010
  Page Count: 256
  Annotation: The research reported expands on prior work that developed a solution analysis-based standard method for the elemental analysis of glass, i.e., inductively coupled plasma mass spectrometry (ICP-MS) analyte detection, by using a laser ablation (LA) sampling source prior to the ICP-MS analyte detection.
  Abstract: One significant disadvantage to solution analysis is the time-consuming nature of the sample preparation, which uses acid digestion of the glasses for metal analysis. The proposed methodology described in this report uses a LA-sampling source before the ICP-MS analyte detection. In addition to shortening the time required for the glass analysis, direct comparison of the results for solution and LA analyses also provides additional data for a more comprehensive study of the LA method development for glass comparison. The results of the studies described in this report, along with the results of several groups (i.e. NITECRIME network), produces excellent precision and low bias for the analysis of glass samples encountered in forensic casework. Glass sample size and sample heterogeneity/homogeneity considerations were also addressed. The technique was also found to be viable for the trace elemental analysis and comparison of paints, with the advantages of offering much better limits of detection than SEM and XRF methods, with minimum sample manipulation and more discrimination potential. Extensive tables and figures and 43 references
  Main Term(s): Criminology
  Index Term(s): Glass analysis ; Paint analysis ; Forensics/Forensic Sciences ; Investigative techniques ; NIJ final report
  Sponsoring Agency: National Institute of Justice (NIJ)
US Department of Justice
Office of Justice Programs
United States of America
  Grant Number: 2003-IJ-CX-K004
  Sale Source: National Institute of Justice/NCJRS
Box 6000
Rockville, MD 20849
United States of America

NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
  Type: Report (Study/Research)
  Country: United States of America
  Language: English
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