Presentation Title
Raman Spectroscopic Analysis of Organic Gunshot Residue Spanning a Range of Excitation Wavelengths
Panel Name
Forensic Science and Experimental Forensic Anthropology
Location
Lecture Center Concourse
Start Date
3-5-2019 3:00 PM
End Date
3-5-2019 5:00 PM
Presentation Type
Poster Session
Academic Major
Chemistry
Abstract
Gunshot residue (GSR) is a type of trace evidence that can often be recovered at crime scenes. Organic gunshot residue (OGSR) is one of the two major components of GSR. This study investigates the analysis of OGSR, and aims to determine the optimum parameters at which to obtain Raman spectroscopic signals for OGSR particles by varying different excitation wavelengths. In this study, a total of 3 different excitation wavelengths were utilized: 785 nm, 457 nm, and 406 nm. The samples were created by hand selecting OGSR particles and placing them upon a tape substrate. Each of the OGSR particles were cordoned off using a grid formation in order to ensure the clear assignment of spectra to the respective particles.
First Faculty Advisor
Dr. Igor Lednev
First Advisor Email
ilednev@albany.edu
First Advisor Department
Chemistry
Raman Spectroscopic Analysis of Organic Gunshot Residue Spanning a Range of Excitation Wavelengths
Lecture Center Concourse
Gunshot residue (GSR) is a type of trace evidence that can often be recovered at crime scenes. Organic gunshot residue (OGSR) is one of the two major components of GSR. This study investigates the analysis of OGSR, and aims to determine the optimum parameters at which to obtain Raman spectroscopic signals for OGSR particles by varying different excitation wavelengths. In this study, a total of 3 different excitation wavelengths were utilized: 785 nm, 457 nm, and 406 nm. The samples were created by hand selecting OGSR particles and placing them upon a tape substrate. Each of the OGSR particles were cordoned off using a grid formation in order to ensure the clear assignment of spectra to the respective particles.