Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy

Frequently, in many traffic accidents it is difficult to establish responsibilities for material damages, people injuries or death, because people that have been involved in the accident leave the crime scene. Because of that, it is very important to find automotive evidence, like paint fragments, a...

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Autores Principales: Gutiérrez-Fallas, Dionisio, Montero-Zeledón, Ernesto, Murillo-Quirós, Natalia, Rojas-Rojas, Laura
Formato: Artículo
Idioma: Español
Publicado: Editorial Tecnológica de Costa Rica 2016
Materias:
Acceso en línea: https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/2985
https://hdl.handle.net/2238/8133
id RepoTEC8133
recordtype dspace
spelling RepoTEC81332017-09-19T20:36:57Z Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy Uso de la espectroscopia Raman en el análisis de fragmentos de pintura automotriz como evidencia forense Gutiérrez-Fallas, Dionisio Montero-Zeledón, Ernesto Murillo-Quirós, Natalia Rojas-Rojas, Laura Automotive paint; forensic evidence; Raman spectroscopy Pintura automotriz; evidencia forense; espectroscopia Raman Frequently, in many traffic accidents it is difficult to establish responsibilities for material damages, people injuries or death, because people that have been involved in the accident leave the crime scene. Because of that, it is very important to find automotive evidence, like paint fragments, as forensic proof that could help authorities reconstruct the incident. The study of physical characteristics of the fragments could help simplify the identification of the vehicle they come from. Commonly, the fragments are very small, in millimeter order size; therefore, it is essential to examine e the samples without risk of destruction, usually by microscopic and spectroscopic techniques. In this work, optical microscopic and Raman spectroscopy analysis of some automotive paint fragments are shown, especially to introduce the Raman spectroscopy as a complementary analytical technique to obtain forensic evidence. En muchos accidentes de tránsito es difícil establecer la responsabilidad por los daños materiales, las lesiones a las personas o las muertes, debido a que los conductores de los vehículos responsables abandonan el lugar de los hechos. Por eso, es fundamental, como parte de la recolección de la evidencia, intentar recuperar fragmentos de pintura automotriz. El estudio de las características físicas de estos fragmentos puede permitir la identificación del vehículo del que provienen. Sin embargo, con frecuencia, esta evidencia presenta un tamaño reducido, del orden de milímetros cuadrados o menor, lo cual requiere que el análisis de las diferentes propiedades físicas no ofrezca riesgo de alteración de la muestra. Para ello, resulta conveniente utilizar métodos como los que ofrecen las técnicas microscópicas y espectroscópicas. En el presente trabajo se muestran los resultados de los análisis de varios fragmentos de pintura automotriz, realizados con microscopio óptico y microscopía Raman, que podrían ser utilizados como evidencia forense. 2016-12-09 2017-09-19T20:36:57Z 2017-09-19T20:36:57Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/2985 10.18845/tm.v29i8.2985 https://hdl.handle.net/2238/8133 spa https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/2985/pdf Copyright (c) 2016 Revista Tecnología en Marcha application/pdf Editorial Tecnológica de Costa Rica Revista Tecnología en Marcha; Revista Tecnología en Marcha. Encuentro de Investigación y Extensión 2016; pág. 57-66 2215-3241 0379-3982
institution Tecnológico de Costa Rica
collection Repositorio TEC
language Español
topic Automotive paint; forensic evidence; Raman spectroscopy
Pintura automotriz; evidencia forense; espectroscopia Raman
spellingShingle Automotive paint; forensic evidence; Raman spectroscopy
Pintura automotriz; evidencia forense; espectroscopia Raman
Gutiérrez-Fallas, Dionisio
Montero-Zeledón, Ernesto
Murillo-Quirós, Natalia
Rojas-Rojas, Laura
Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy
description Frequently, in many traffic accidents it is difficult to establish responsibilities for material damages, people injuries or death, because people that have been involved in the accident leave the crime scene. Because of that, it is very important to find automotive evidence, like paint fragments, as forensic proof that could help authorities reconstruct the incident. The study of physical characteristics of the fragments could help simplify the identification of the vehicle they come from. Commonly, the fragments are very small, in millimeter order size; therefore, it is essential to examine e the samples without risk of destruction, usually by microscopic and spectroscopic techniques. In this work, optical microscopic and Raman spectroscopy analysis of some automotive paint fragments are shown, especially to introduce the Raman spectroscopy as a complementary analytical technique to obtain forensic evidence.
format Artículo
author Gutiérrez-Fallas, Dionisio
Montero-Zeledón, Ernesto
Murillo-Quirós, Natalia
Rojas-Rojas, Laura
author_sort Gutiérrez-Fallas, Dionisio
title Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy
title_short Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy
title_full Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy
title_fullStr Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy
title_full_unstemmed Analysis of automotive paint fragments used as forensic evidence by Raman spectroscopy
title_sort analysis of automotive paint fragments used as forensic evidence by raman spectroscopy
publisher Editorial Tecnológica de Costa Rica
publishDate 2016
url https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/2985
https://hdl.handle.net/2238/8133
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score 12.140644