Trace metal analysis by laser ablation-inductively coupled plasma-mass spectrometry and x-ray K-edge densitometry of forensic samples
نویسنده
چکیده
.................................... ............................................................. vi CHAPTER 1. GENERAL INTRODUCTION ...................................................... 1 The History of Elemental Analysis ...................................................................... 1 ICP-MS .........................................................................................................2 Trace Element Analysis in Forensics ................................................................... 3 LA-ICP-MS for Trace Element Analysis in Forensics ........................................ 5 Trace Elements in Lipsticks ........................................................................... 5 Trace Elements in Copper Wire ..................................................................... 6 Trace Element Analysis of Gunshot Residue with LA-ICP-MS .................. 7 Trace Element Analysis of Gunshot Residue with Radiography and K-Edge, X-Ray Densitometry ........................................................................ 9 Data Analysis for Comparison of Forensic Samples ........................................... 9 Dissertation Organization ................................................................................... 10 References .........................................................................................................10 CHAPTER 2. DISTINGUISHING LIPSTICK SAMPLES OF SIMILAR COLORS BY TRACE ELEMENT ANALYSIS FOR FORENSIC COMPARISONS ................................................................................ 16 Abstract .........................................................................................................16 Introduction ........................................................................................................ 16 Experimental ........................................................................................................ 19 Mass Scan of Lipsticks to Identify Elements Present .................................... 19 Homogeneity and Distinguishability of Lipsticks ...................................... 20 Data Analysis ................................................................................................. 20 Results and Discussion ........................................................................................ 21 Homogeneity of Trace Element Composition within a Lipstick Sample ...... 21 Distinguishing Lipsticks of Similar Color ................................................... 22 Conclusions ........................................................................................................ 24
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