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                            Library & Multimedia
 Rapid, in situ detection of chemical warfare agent simulants and hydrolysis products in bulk soils by low-cost 3D-printed cone spray ionization mass spectrometry dagger
NCJ Number
              304023
Journal

*Analyst* Volume: 146 Issue: 10 Dated: 2021 Pages: 3127-3136
Author(s)
          H. M. Brown;
                        et al
Date Published

2021
Length
              10 pages
Annotation
              This article describes the use of conductive 3D-printed cones to perform both rapid sampling and ionization for chemical warfare agent (CWA) simulants and hydrolysis products in eight solid matrices.
Abstract
              Chemical warfare agents (CWAs) are toxic chemicals that have been used as disabling or lethal weapons in war, terrorist attacks, and assassinations. The Chemical Weapons Convention (CWC) has prohibited the use, development, production, and stockpiling of CWAs since its initiation in 1997; however, the threat of deployment still looms. Detection of trace CWAs post-deployment or post-remediation, in bulk matrices such as soil, often requires lengthy sample preparation or extensive chromatographic separation times. 3D-printed cone spray ionization (3D-PCSI), an ambient ionization mass spectrometric (MS) technique, provides a rapid, simple, and low-cost method for trace CWA analysis in soil matrices for both in-laboratory and in-field detection. The current article reports the analysis of trace quantities of CWA simulants and hydrolysis products by 3D-PCSI-MS coupled to both a commercial benchtop system and a field-portable MS system. Empirical limits of detection (LOD) for CWA simulants on the benchtop MS ranged from 100 ppt to 750 ppb and were highly dependent on solid matrix composition, with the portable system yielding similar spectral data from alike matrices, albeit with lower sensitivity. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2017-R2-CX-0022


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Award
        Coupling Raman Spectroscopy with Ambient Sampling, Portable Mass Spectrometry for On-site, High-Throughput Evidence Confirmation on a Single Instrumental Platform
    
  
  
Date Published: January 1, 2021
    
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