Identification of high explosives using single-particle aerosol mass spectrometry

Audrey N. Martin, George R. Farquar, Eric E. Gard, Matthias Frank, David P. Fergenson

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The application of single-particle aerosol mass spectrometry (SPAMS) to the real-time detection of micrometersized single particles of high explosives is described. Dual-polarity time-of-flight mass spectra from 1000 single particles each of 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitro-1,3,5-triazinane (RDX), and pentaerythritol tetranitrate (PETN), as well as those of complex explosives, Composition B, Semtex 1A, and Semtex 1H, were obtained over a range of desorption/ionization laser fluences between 0.50 and 8.01 nJ/μm 2. Mass spectral variability with laser fluence for each explosive is discussed. The ability of the SPAMS system to identify explosive components in a single complex explosive particle (∼1 pg) without the need for consumables is demonstrated.

Original languageEnglish (US)
Pages (from-to)1918-1925
Number of pages8
JournalAnalytical Chemistry
Volume79
Issue number5
DOIs
StatePublished - Mar 5 2007
Externally publishedYes

Fingerprint

Aerosols
Mass spectrometry
Pentaerythritol Tetranitrate
Trinitrotoluene
Lasers
Ionization
Desorption
Chemical analysis

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Identification of high explosives using single-particle aerosol mass spectrometry. / Martin, Audrey N.; Farquar, George R.; Gard, Eric E.; Frank, Matthias; Fergenson, David P.

In: Analytical Chemistry, Vol. 79, No. 5, 05.03.2007, p. 1918-1925.

Research output: Contribution to journalArticle

Martin, Audrey N. ; Farquar, George R. ; Gard, Eric E. ; Frank, Matthias ; Fergenson, David P. / Identification of high explosives using single-particle aerosol mass spectrometry. In: Analytical Chemistry. 2007 ; Vol. 79, No. 5. pp. 1918-1925.
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