Characterization of the explosive triacetone triperoxide and detection by ion mobility spectrometry

Buttigieg, Gavin A.; Knight, Andrew K.; Denson, Stephen C.; Pommier, Carolyn J. S.; Denton, M. Bonner

doi:10.1016/s0379-0738(03)00175-0

Cited by 129 publications

(92 citation statements)

References 9 publications

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“…It is known to have contaminated soil and water as a consequence of its use in military activities, the operational deployment of land mines, and in other industrial activities [1][2][3] which has led to significant environmental pollution. A wide range of instrumental methods have been applied for the detection of TNT such as ion mobility spectroscopy, capillary electrophoresis, and gas or liquid chromatography [3][4][5][6][7][8][9][10][11][12]. Although the instruments used to conduct such tests are highly efficient, they are expensive and are not available in many laboratories.…”

Section: Introductionmentioning

confidence: 99%

A cost effective hydrogel test kit for pre and post blast trinitrotoluene

Choodum

Malathong

NicDaéid

et al. 2016

Forensic Science International

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General rightsCopyright and moral rights for the publications made accessible in Discovery Research Portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from Discovery Research Portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain.• You may freely distribute the URL identifying the publication in the public portal. Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. ABSTRACTA cost effective hydrogel test kit was successfully developed for the detection of pre-and post-blast trinitrotoluene (TNT). A polyvinyl alcohol (PVA) hydrogel matrix was used to entrap the potassium hydroxide (KOH) colourimetric reagent. The easily portable test kit was fabricated in-situ in a small tube to which the sample could be added directly. The test kit was used in conjunction with digital image colourimetry (DIC) to demonstrate the rapid quantitative analysis of TNT in a test soil sample. The built-in digital camera of an iPhone was used to capture digital images of the colourimetric products from the test kit. Red-Green-Blue (RGB) colour data from the digital images of TNT standard solutions were used to establish a calibration graph. The validation of the DIC method indicated excellent inter day precision (0.12-3.60%RSD) and accuracy (93-108% relative accuracy). Post-blast soil samples containing TNT were analysed using the test kit and were in good agreement with spectrophotometric analysis. The intensity of the RGB data from the TNT complex deviated by +6.3%, +5.1%, and -4.9% after storage of the test kits in a freezer for 3 months. The test kit was also reusable for up to 12 times with only -5.4%, +0.3%, and +4.0% deviations. The hydrogel test kit was applied in the detection of trace explosive residues at the scene of the recent Bangkok bombing at the Ratchaprasong intersection and produced positive results for TNT demonstrating its operational field application as a rapid and cost effective quantitative tool for explosive residue analysis.

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Section: Introductionmentioning

confidence: 99%

A cost effective hydrogel test kit for pre and post blast trinitrotoluene

Choodum

Malathong

NicDaéid

et al. 2016

Forensic Science International

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“…However, in the unmodulated source FT-IR experiments, the same result was not found: the first loading has the spectral information shifted. Other bands that contribute occur at 890 cm −1 and 939 cm −1 , which are tentatively assigned to O-O stretching [24,25]. The same analysis applies for all of the other loadings (data not shown).…”

Section: Resultsmentioning

confidence: 72%

“…that was tentatively assigned to C-O stretching [24,25] is the largest contributor to the loadings calculated by the models for modulated source FT-IR and QCL source. However, in the unmodulated source FT-IR experiments, the same result was not found: the first loading has the spectral information shifted.…”

Section: Resultsmentioning

confidence: 91%

Detection of Nitroaromatic and Peroxide Explosives in Air Using Infrared Spectroscopy: QCL and FTIR

Pacheco‐Londoño

Castro-Suarez

Hernández‐Rivera

2013

Advances in Optical Technologies

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A methodology for processing spectroscopic information using a chemometrics-based analysis was designed and implemented in the detection of highly energetic materials (HEMs) in the gas phase at trace levels. The presence of the nitroaromatic HEM 2,4-dinitrotoluene (2,4-DNT) and the cyclic organic peroxide triacetone triperoxide (TATP) in air was detected by chemometricsenhanced vibrational spectroscopy. Several infrared experimental setups were tested using traditional heated sources (globar), modulated and nonmodulated FT-IR, and quantum cascade laser-(QCL-) based dispersive IR spectroscopy. The data obtained from the gas phase absorption experiments in the midinfrared (MIR) region were used for building the chemometrics models. Partial least-squares discriminant analysis (PLS-DA) was used to generate pattern recognition schemes for trace amounts of explosives in air. The QCL-based methodology exhibited a better capacity of discrimination for the detected presence of HEM in air compared to other methodologies.

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“…Various unconventional analytical methods have been developed for the detection and characterization of TATP and other peroxide explosives in consequence of the lack of nitro group and aromatic functional groups resulting in poor detection using wellestablished techniques for the nitro-containing explosives [80,81] . Presumptive tests such as chemiluminescense sensors have been used for easily detecting these compounds from the characteristic properties of hydrogen peroxide [82].…”

Section: Improvised Homemade Explosivesmentioning

confidence: 99%

“…Oxley and other scientists has characterized TATP using Infrared [80] and Raman spectroscopy [80,85,86]. Peroxide explosives can also be detected and analyzed by mass spectrometry which includes desorption electrospray ionization (DESI) [87] and selected ion flow tube (SIFT) [88].…”

Section: Improvised Homemade Explosivesmentioning

confidence: 99%

Evaluation of Non-Contact Sampling and Detection of Explosives using Receiver Operating Characteristic Curves

Young¹

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Characterization of the explosive triacetone triperoxide and detection by ion mobility spectrometry

Cited by 129 publications

References 9 publications

A cost effective hydrogel test kit for pre and post blast trinitrotoluene

A cost effective hydrogel test kit for pre and post blast trinitrotoluene

Detection of Nitroaromatic and Peroxide Explosives in Air Using Infrared Spectroscopy: QCL and FTIR

Evaluation of Non-Contact Sampling and Detection of Explosives using Receiver Operating Characteristic Curves

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