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Updated: Sep 9, 2025
09:11
Raman and IR Spectroelectrochemical Methods as Tools to Analyze Conjugated Organic Compounds
Published on: October 12, 2018
18.4K
[Infrared and Raman vibrational analysis of high energy materials with chemometrics]
Jorge L Plata Enríquez1, John R Castro-Suarez2, María A Villareal Blanco1
1Centro Químico de Sensores/Centro de Imágenes Químicas y Análisis de Superficies, Departamento de Química, Universidad de Puerto Rico-Mayagüez, PR 00681, Mayagüez, EE. UU.
RISTI : Revista Iberica De Sistemas E Tecnologias De Informacao
|September 2, 2025
Summary
This study demonstrates infrared (IR) and Raman spectroscopy effectively detect highly energetic materials (HEM), also known as explosives. The vibrational spectroscopy methods identified HEMs in various solid samples, aiding in security and safety applications.
Area of Science:
- Analytical Chemistry
- Spectroscopy
- Materials Science
Context:
- Detection of highly energetic materials (HEM) is crucial for global security.
- Previous methods for HEM detection have limitations.
- Vibrational spectroscopy offers a promising alternative for HEM identification.
Purpose:
- To evaluate the efficacy of infrared (IR) and Raman spectroscopy for detecting highly energetic materials (HEM).
- To analyze HEMs on metallic and solid surfaces using vibrational spectroscopy.
- To apply quantitative and multivariate analyses for comparative spectral analysis.
Summary:
- Reference spectra of common explosives (TNT, DNT, PETN, RDX) were utilized for IR and Raman mode detection.
- Solid samples containing HEMs and metallic surfaces were analyzed.
- Vibrational bands were detected using both IR and Raman spectroscopy.
- Supervised multivariate analyses, including PLS-DA, were performed on fourteen unknown solid samples.
- Comparative quantitative analyses using the spectral correlation index were conducted.
Impact:
- Infrared (IR) and Raman spectroscopy are validated as useful tools for identifying the presence of HEMs.
- This research contributes to the development of advanced detection techniques for explosives.
- The findings support enhanced safety and security measures through improved HEM detection capabilities.
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