Proton transfer reaction mass spectrometry for the sensitive and rapid real-time detection of solid high explosives in air and water

S. Jürschik, P. Sulzer, F. Petersson, C. A. Mayhew, A. Jordan, B. Agarwal, S. Haidacher, H. Seehauser, K. Becker, T. D. Märk

Research output: Contribution to journalArticle

Abstract

Relying on recent developments in proton transfer reaction mass spectrometry (PTR-MS), we demonstrate here the capability of detecting solid explosives in air and in water in real time. Two different proton transfer reaction mass spectrometers have been used in this study. One is the PTR-TOF 8000, which has an enhanced mass resolution (m/Δm up to 8,000) and high sensitivity (~50 cps/ppbv). The second is the high-sensitivity PTR-MS, which has an improved limit of detection of about several hundreds of parts per quadrillion by volume and is coupled with a direct aqueous injection device. These instruments have been successfully used to identify and monitor the solid explosive 2,4,6-trinitrotoluene (TNT) by analysing on the one hand the headspace above small quantities of samples at room temperature and from trace quantities not visible to the naked eye placed on surfaces (also demonstrating the usefulness of a simple pre-concentration and thermal desorption technique) and by analysing on the other hand trace compounds in water down to a level of about 100 pptw. The ability to identify even minute amounts of threat compounds, such as explosives, particularly within a complex chemical environment, is vital to the fight against crime and terrorism and is of paramount importance for the appraisal of the fate and harmful effects of TNT at marine ammunition dumping sites and the detection of buried antipersonnel and antitank landmines. [Figure not available: see fulltext.]

Original languageEnglish (US)
Pages (from-to)2813-2820
Number of pages8
JournalAnalytical and Bioanalytical Chemistry
Volume398
Issue number7-8
DOIs
StatePublished - Dec 2010

Fingerprint

Proton transfer
Trinitrotoluene
Mass spectrometry
Protons
Mass Spectrometry
Air
Water
Terrorism
Ammunition
Thermal desorption
Crime
Mass spectrometers
Limit of Detection
Hot Temperature
Equipment and Supplies
Injections
Temperature

Keywords

  • Direct aqueous injection
  • Explosives
  • PTR-MS
  • TNT
  • Trace compound detection

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry

Cite this

Proton transfer reaction mass spectrometry for the sensitive and rapid real-time detection of solid high explosives in air and water. / Jürschik, S.; Sulzer, P.; Petersson, F.; Mayhew, C. A.; Jordan, A.; Agarwal, B.; Haidacher, S.; Seehauser, H.; Becker, K.; Märk, T. D.

In: Analytical and Bioanalytical Chemistry, Vol. 398, No. 7-8, 12.2010, p. 2813-2820.

Research output: Contribution to journalArticle

Jürschik, S, Sulzer, P, Petersson, F, Mayhew, CA, Jordan, A, Agarwal, B, Haidacher, S, Seehauser, H, Becker, K & Märk, TD 2010, 'Proton transfer reaction mass spectrometry for the sensitive and rapid real-time detection of solid high explosives in air and water', Analytical and Bioanalytical Chemistry, vol. 398, no. 7-8, pp. 2813-2820. https://doi.org/10.1007/s00216-010-4114-9
Jürschik, S. ; Sulzer, P. ; Petersson, F. ; Mayhew, C. A. ; Jordan, A. ; Agarwal, B. ; Haidacher, S. ; Seehauser, H. ; Becker, K. ; Märk, T. D. / Proton transfer reaction mass spectrometry for the sensitive and rapid real-time detection of solid high explosives in air and water. In: Analytical and Bioanalytical Chemistry. 2010 ; Vol. 398, No. 7-8. pp. 2813-2820.
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AB - Relying on recent developments in proton transfer reaction mass spectrometry (PTR-MS), we demonstrate here the capability of detecting solid explosives in air and in water in real time. Two different proton transfer reaction mass spectrometers have been used in this study. One is the PTR-TOF 8000, which has an enhanced mass resolution (m/Δm up to 8,000) and high sensitivity (~50 cps/ppbv). The second is the high-sensitivity PTR-MS, which has an improved limit of detection of about several hundreds of parts per quadrillion by volume and is coupled with a direct aqueous injection device. These instruments have been successfully used to identify and monitor the solid explosive 2,4,6-trinitrotoluene (TNT) by analysing on the one hand the headspace above small quantities of samples at room temperature and from trace quantities not visible to the naked eye placed on surfaces (also demonstrating the usefulness of a simple pre-concentration and thermal desorption technique) and by analysing on the other hand trace compounds in water down to a level of about 100 pptw. The ability to identify even minute amounts of threat compounds, such as explosives, particularly within a complex chemical environment, is vital to the fight against crime and terrorism and is of paramount importance for the appraisal of the fate and harmful effects of TNT at marine ammunition dumping sites and the detection of buried antipersonnel and antitank landmines. [Figure not available: see fulltext.]

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