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                            Library & Multimedia
 Optimization of gas chromatography/vacuum ultraviolet (GC/VUV) spectroscopy for explosive compounds and application to post-blast debris
NCJ Number
              303532
Journal

*Forensic Chemistry* Volume: 26 Dated: December 2021
Author(s)
          Courtney A .Cruse;
                        John V. Goodpaster
Date Published

December 2021
Annotation
              Since a statistical optimization of gas chromatography/vacuum ultraviolet spectroscopy (GC/VUV) for the analysis of explosives has yet to be presented, in the current project, a central composite design of experiments was used to optimize GC/VUV parameters for explosive and explosive-related compounds, such as triacetone triperoxide (TATP), dimethyldinitrobutane (DMNB), nitroglycerine (NG), diphenylamine (DPA), 2,4,6-trinitrotoluene (TNT), pentaerythritol tetranitrate (PETN), and cyclonite (RDX).
Abstract
              Parameters optimized included the final temperature of a ramped multimode inlet program (200 °C), GC carrier gas flow rate (1.9 mL/min), and VUV make-up gas pressure (0.00 psi). The impact of transfer line/flow cell temperature was determined not to be statistically significant. Post-blast debris was successfully analyzed to illustrate applicability to forensic analysis of explosives. Relevant compounds in single- and double-base smokeless powders were successfully identified in post-blast fragments originating from PVC and steel pipes. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2017-R2-CX-0018
                                2018-R2-CX-0015


  
  
        
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        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)


  
  
        
  Award
        IDENTIFICATION OF LOW EXPLOSIVES AND THEIR POST-BLAST RESIDUES VIA GAS CHROMATOGRAPHY (GC) COUPLED WITH VACUUM ULTRAVIOLET (VUV) SPECTROSCOPY
                                Coupling Gas Chromatography (GC) and Vacuum Ultraviolet (VUV) Spectroscopy for Forensic Applications
    
  
  
Date Published: December 1, 2021
    
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