Analysis of Wood Samples from a Crime Scene using Laser - Induced Breakdown Spectroscopy ( LIBS
نویسنده
چکیده
On 08 April 2004, the Laboratory of Tree-Ring Science in the Department of Geography, University of Tennessee, received 14 logs from Larry R. Smart, Criminal Investigation Section, Office of the Sherriff, Collin County, Texas. Ten logs numbered 2600 to 2609 were retrieved from a crime scene. Four logs were retrieved from the scene of a gathering attended by the suspect. These logs are numbered 2610 to 2613.
منابع مشابه
Calibration free laser-induced breakdown spectroscopy of oxide materials
a r t i c l e i n f o Keywords: Calibration free laser-induced breakdown spectroscopy (CF-LIBS) Multi-element analysis Oxides The quantitative determination of oxide concentration by laser-induced breakdown spectroscopy is relevant in various fields of applications (e.g.: analysis of ores, concrete, slag). Calibration free laser-induced breakdown spectroscopy and the multivariate calibration ar...
متن کاملQuantitative elemental analysis by laser-induced breakdown spectroscopy
Laser-induced breakdown spectroscopy (LIBS) has been popular in elemental analysis for various kinds of samples due to its rapid and in-situ measurement using simple equipment. However, quantitative analysis by LIBS is still inferior to conventional element analysis methods in sensitivity and accuracy. In this paper improvement in LIBS is attempted applying computational processing to low-resol...
متن کاملLaser induced breakdown spectroscopy (LIBS) as a rapid tool for material analysis
Laser induced breakdown spectroscopy (LIBS) is a novel technique for elemental analysis based on laser-generated plasma. In this technique, laser pulses are applied for ablation of the sample, resulting in the vaporization and ionization of sample in hot plasma which is finally analyzed by the spectrometer. The elements are identified by their unique spectral signatures. LIBS system was develop...
متن کاملAnalysis of natural and artificial ultramarine blue pigments using laser induced breakdown and pulsed Raman spectroscopy, statistical analysis and light microscopy.
Pulsed laser induced breakdown spectroscopy (LIBS) and Raman spectroscopy were performed using a novel laboratory setup employing the same Nd:YAG laser emission at 532 nm for the analysis of five commercially available pigments collectively known as "ultramarine blue", a sodium silicate material of either mineral origin or an artificially produced glass. LIBS and Raman spectroscopy have provide...
متن کاملLaser Induced Breakdown Spectroscopy
Laser-induced breakdown spectroscopy (LIBS) is a powerful analytical technique that can be used for the detection and characterization of materials. In LIBS, a focused laser beam is used to generate a plasma plume on the surface of solid and liquid samples or inside the sample volume of gases, liquids, and aerosols. Each excited atom in the plasma emits a unique set of spectral lines, particula...
متن کامل