Improved method for the detection of TATP after explosion

Dan Muller; A. Levy; R. Shelef; S. Abramovich-Bar; D. Sonenfeld; T. Tamiri

doi:10.1520/jfs2003003

Improved method for the detection of TATP after explosion

Dan Muller, A. Levy, R. Shelef, S. Abramovich-Bar, D. Sonenfeld, T. Tamiri

Research output: Contribution to journal › Article › peer-review

Abstract

TATP in post explosion exhibits was reported earlier to be best recovered from vapor phase. A typical procedure includes its adsorption on Amberlite XAD-7, elution with acetonitrile and analysis by GC/MS. In this work, improved recovery of TATP from the vapor phase was achieved by SPME using PDMS/DVB fiber and immediate sampling to GC/MS. The recovery of TATP by SPME was compared with headspace and with adsorption on Amberlite XAD-7 by spiking onto filter paper put in a 100 mL beaker. The limit of detection of TATP was 6.4 ng in these conditions, few orders magnitude more than in the other tested methods. Recovery of TATP in the presence of various solvents was also studied. Acetone, water, and mixtures of water:alcohols (1:1) were found to reduce the recovery of TATP. Using SPME, TATP has been identified in dozens of post-explosion cases.

Original language	English
Pages (from-to)	935-938
Number of pages	4
Journal	Journal of Forensic Sciences
Volume	49
Issue number	5
DOIs	https://doi.org/10.1520/jfs2003003
State	Published - Sep 2004
Externally published	Yes

Keywords

Adsorption
Forensic science
Gas chromatography-mass spectrometry
Headspace
Post-explosion analysis
Solid-phase microextraction
Triacetone triperoxide

ASJC Scopus subject areas

Pathology and Forensic Medicine
Genetics

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10.1520/jfs2003003

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title = "Improved method for the detection of TATP after explosion",

abstract = "TATP in post explosion exhibits was reported earlier to be best recovered from vapor phase. A typical procedure includes its adsorption on Amberlite XAD-7, elution with acetonitrile and analysis by GC/MS. In this work, improved recovery of TATP from the vapor phase was achieved by SPME using PDMS/DVB fiber and immediate sampling to GC/MS. The recovery of TATP by SPME was compared with headspace and with adsorption on Amberlite XAD-7 by spiking onto filter paper put in a 100 mL beaker. The limit of detection of TATP was 6.4 ng in these conditions, few orders magnitude more than in the other tested methods. Recovery of TATP in the presence of various solvents was also studied. Acetone, water, and mixtures of water:alcohols (1:1) were found to reduce the recovery of TATP. Using SPME, TATP has been identified in dozens of post-explosion cases.",

keywords = "Adsorption, Forensic science, Gas chromatography-mass spectrometry, Headspace, Post-explosion analysis, Solid-phase microextraction, Triacetone triperoxide",

author = "Dan Muller and A. Levy and R. Shelef and S. Abramovich-Bar and D. Sonenfeld and T. Tamiri",

year = "2004",

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AU - Muller, Dan

AU - Levy, A.

AU - Shelef, R.

AU - Abramovich-Bar, S.

AU - Sonenfeld, D.

AU - Tamiri, T.

PY - 2004/9

Y1 - 2004/9

N2 - TATP in post explosion exhibits was reported earlier to be best recovered from vapor phase. A typical procedure includes its adsorption on Amberlite XAD-7, elution with acetonitrile and analysis by GC/MS. In this work, improved recovery of TATP from the vapor phase was achieved by SPME using PDMS/DVB fiber and immediate sampling to GC/MS. The recovery of TATP by SPME was compared with headspace and with adsorption on Amberlite XAD-7 by spiking onto filter paper put in a 100 mL beaker. The limit of detection of TATP was 6.4 ng in these conditions, few orders magnitude more than in the other tested methods. Recovery of TATP in the presence of various solvents was also studied. Acetone, water, and mixtures of water:alcohols (1:1) were found to reduce the recovery of TATP. Using SPME, TATP has been identified in dozens of post-explosion cases.

AB - TATP in post explosion exhibits was reported earlier to be best recovered from vapor phase. A typical procedure includes its adsorption on Amberlite XAD-7, elution with acetonitrile and analysis by GC/MS. In this work, improved recovery of TATP from the vapor phase was achieved by SPME using PDMS/DVB fiber and immediate sampling to GC/MS. The recovery of TATP by SPME was compared with headspace and with adsorption on Amberlite XAD-7 by spiking onto filter paper put in a 100 mL beaker. The limit of detection of TATP was 6.4 ng in these conditions, few orders magnitude more than in the other tested methods. Recovery of TATP in the presence of various solvents was also studied. Acetone, water, and mixtures of water:alcohols (1:1) were found to reduce the recovery of TATP. Using SPME, TATP has been identified in dozens of post-explosion cases.

KW - Adsorption

KW - Forensic science

KW - Gas chromatography-mass spectrometry

KW - Headspace

KW - Post-explosion analysis

KW - Solid-phase microextraction

KW - Triacetone triperoxide

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JO - Journal of Forensic Sciences

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IS - 5

ER -

Improved method for the detection of TATP after explosion

Abstract

Keywords

ASJC Scopus subject areas

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