Ultrasensitive RDX detection with commercial SERS substrates
Article first published online: 21 NOV 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Volume 45, Issue 1, pages 41–46, January 2014
How to Cite
Almaviva, S., Botti, S., Cantarini, L., Fantoni, R., Lecci, S., Palucci, A., Puiu, A. and Rufoloni, A. (2014), Ultrasensitive RDX detection with commercial SERS substrates. J. Raman Spectrosc., 45: 41–46. doi: 10.1002/jrs.4413
- Issue published online: 16 JAN 2014
- Article first published online: 21 NOV 2013
- Manuscript Accepted: 17 OCT 2013
- Manuscript Revised: 16 OCT 2013
- Manuscript Received: 23 JAN 2013
- BONAS. Grant Number: 261685
- trace evidence;
- Raman spectroscopy
Surface-enhanced Raman spectroscopy (SERS) measurements on 1,3,5-trinitroperhydro-1,3,5-triazine were performed with a table-top micro-Raman system exciting the analyte with a diode laser emitting at 785 nm. The main Raman features of 1,3,5-trinitroperhydro-1,3,5-triazine were clearly identified, and a careful optimization of acquisition parameters was performed in order to increase the overall sensitivity of the apparatus. The amount of the sampled substance was determined through the analysis of high-resolution scanning electron microscope images of the substrate covered with the residual explosive and resulted to be of the order of few tens of picograms. This value demonstrates the applicability of commercial substrates to the ultrasensitive surface-enhanced Raman spectroscopy detection of explosives, allowing for their identification in real time. Copyright © 2013 John Wiley & Sons, Ltd.