Discriminant Analysis of Raman Spectra for Body Fluid Identification for Forensic Purposes

Sensors

Vitali Sikirzhytski¹  Kelly Virkler¹ 

[1] id="af1-sensors-10-02869">Department of Chemistry, University at Albany, SUNY, 1400 Washington Avenue, Albany, NY 12222, U

关键词: body fluids;    semen;    blood;    saliva;    forensic medicine;    human;    discriminant analysis;    spectroscopy;    spectrum analysis;    Raman spectroscopy;   

DOI  :  10.3390/s100402869

来源: mdpi

【 摘 要 】

Detection and identification of blood, semen and saliva stains, the most common body fluids encountered at a crime scene, are very important aspects of forensic science today. This study targets the development of a nondestructive, confirmatory method for body fluid identification based on Raman spectroscopy coupled with advanced statistical analysis. Dry traces of blood, semen and saliva obtained from multiple donors were probed using a confocal Raman microscope with a 785-nm excitation wavelength under controlled laboratory conditions. Results demonstrated the capability of Raman spectroscopy to identify an unknown substance to be semen, blood or saliva with high confidence.

【 授权许可】

CC BY   
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.