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Proceedings Paper

A method to control the polymorphic phase for RDX-based trace standards
Author(s): John J. Brady; Brittney L. Argirakis; Alexander D. Gordon; Richard T. Lareau; Barry T. Smith
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Paper Abstract

The polymorphic phase of 1,3,5-trinitro-1,3,5-triazine (RDX) was examined as a function of mass loading, solvent and sample deposition technique. When RDX was deposited at a high mass loading, the vibrational modes in the obtained Raman spectra were indicative of concomitant polymorphism as both the α and β-RDX phases were present. At low mass loadings, only β-RDX was observed regardless of solvent or mass loading. However, only the bulk phase (i.e., α- RDX) was observed when RDX deposits were dry transferred. Observation of the bulk phase was independent of the initial mass loading or the initial deposition solvent when using the dry transfer methodology. This data demonstrates that the use of the dry transfer preparation method can be used to successfully prepare RDX-based standards with the bulk phase regardless of the solvent used to initially dissolve the RDX, the initial deposition technique, or the mass loading.

Paper Details

Date Published: 12 May 2016
PDF: 7 pages
Proc. SPIE 9824, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII, 982418 (12 May 2016); doi: 10.1117/12.2223837
Show Author Affiliations
John J. Brady, Transportation Security Lab. (United States)
Signature Science, LLC (United States)
Brittney L. Argirakis, Transportation Security Lab. (United States)
The Pennsylvania State Univ. (United States)
Alexander D. Gordon, Transportation Security Lab. (United States)
Signature Science, LLC (United States)
Richard T. Lareau, Transportation Security Lab. (United States)
Barry T. Smith, Transportation Security Lab. (United States)


Published in SPIE Proceedings Vol. 9824:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII
Augustus Way Fountain, Editor(s)

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