Date of this Version
2024
Document Type
Poster
Department
Biochemistry
Abstract
This research focuses on developing two analytical methods for forensic investigations using electrochemical detection and surface-enhanced Raman spectroscopy. For electrochemical analysis, screen-printed carbon electrodes are used to detect metals and nitrate/nitrite compounds commonly found in gunshot residue. Gold electrodeposition and copper modification enhance sensitivity and catalytic activity, respectively. Additionally, a screen-printed gold electrode modified with gold nanoparticles enables surface-enhanced Raman spectroscopy, requiring only a single drop of sample solution. Testing includes various compounds relevant to forensic identification, with Origin software used for data analysis. These techniques provide rapid and precise onsite examination of gunshot residue and low explosives, eliminating the need for benchtop instruments. Overall, these advancements enhance forensic inquiries and contribute to the ongoing progress of forensic science, aiding law enforcement agencies worldwide in seeking justice.
Recommended Citation
Wongpakdeea, Thinnapong; Crenshaw, Karin; Wong, Hery M. Figueroa; Nacapricha, Duangjai; and McCord, Bruce, "Advancements in Analytical Techniques for Rapid Identification of Gunshot Residue and Low Explosives through Electrochemical Detection and Surface-Enhanced Raman Spectroscopy" (2024). Global Forensic and Justice Center Symposium Research. 7.
https://digitalcommons.fiu.edu/gfjcsr/7