S. Botti, S. Almaviva, L. Cantarini, A. Palucci, A. Puiu and A. Rufoloni Trace level detection and identification of nitro-based explosives by surface-enhanced Raman spectroscopy Journal of Raman Spectroscopy 44
In this paper, SERS was applied to trace level detection of PETN, EGDN, RDX and TNT. PCA of the data showed that explosives can be clearly classified, on the basis of the SERS spectra, at quantities as low as tens of pg. Our measurements further demonstrate the potential for using SERS as fast, in situ analytical tool for safety devices, with a sensitivity which competes and, in some cases, overcomes other techniques.
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