Gas-phase Concentration of Triacetone Triperoxide (TATP) and Diacetone Diperoxide (DADP)

2017 ◽  
Vol 42 (6) ◽  
pp. 623-634 ◽  
Author(s):  
Martin A. C. Härtel ◽  
Thomas M. Klapötke ◽  
Benedikt Stiasny ◽  
Jörg Stierstorfer
Keyword(s):  
Gas Phase ◽  
Triacetone Triperoxide ◽  
Phase Concentration ◽  
Diacetone Diperoxide

scholarly journals Towards the fluorogenic detection of peroxide explosives through host–guest chemistry

2018 ◽  
Vol 5 (4) ◽  
pp. 171787 ◽  
Author(s):  
Estefanía Almenar ◽  
Ana M. Costero ◽  
Pablo Gaviña ◽  
Salvador Gil ◽  
Margarita Parra
Keyword(s):  
Aqueous Media ◽  
Sensory Systems ◽  
Fluorescent Detection ◽  
Cyclodextrin Derivatives ◽  
Triacetone Triperoxide ◽  
Diacetone Diperoxide ◽  
Guest Chemistry

Two dansyl-modified β-cyclodextrin derivatives ( 1 and 2 ) have been synthesized as host–guest sensory systems for the direct fluorescent detection of the peroxide explosives diacetone diperoxide (DADP) and triacetone triperoxide (TATP) in aqueous media. The sensing is based on the displacement of the dansyl moiety from the cavity of the cyclodextrin by the peroxide guest resulting in a decrease of the intensity of the fluorescence of the dye. Both systems showed similar fluorescent responses and were more sensitive towards TATP than DADP.

Use Horizontal Aeration Method to Treat Organic Pollution in Soil

2014 ◽  
Vol 989-994 ◽  
pp. 1364-1367
Author(s):  
Lu Yang Xu
Keyword(s):  
Ground Water ◽  
Gas Phase ◽  
Organic Pollution ◽  
Foundation Pit ◽  
Concentration Difference ◽  
The Earth ◽  
Phase Concentration ◽  
Horizontal Arrangement

This design adopts the method of horizontal arrangement to set the aerator pipes because it’s more effective than an upright way. The pipes are divided into two vertical levels. Firstly there should be an excavation of foundation pit or grooves to put the pipes in two levels. Then the pipes in two levels can be set at vertical directions. After burying the pipe the earth should be backfilled into the grooves. When backfilling the lower level groove, we put some certain microorganism to help cleaning the organic pollution. While working, the pipes above are mainly used to manufacturing gas phase concentration difference, letting the organic volatilize and goes into the atmosphere. The pipes in lower level are mainly used to provide oxygen to microorganisms in the soil, so that they can decompose organic and make them into inorganic which is no harm to the soil and ground water.

Gas-Phase Infrared and NMR Investigation of the Conformers of Diacetone Diperoxide (DADP)

2015 ◽  
Vol 119 (40) ◽  
pp. 10221-10228 ◽  
Author(s):  
Chunlei Guo ◽  
John Persons ◽  
Jeffrey N. Woodford ◽  
Gerard S. Harbison
Keyword(s):  
Gas Phase ◽  
Diacetone Diperoxide

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

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Leonardo C. Pacheco-Londoño ◽  
John R. Castro-Suarez ◽  
Samuel P. Hernández-Rivera
Keyword(s):  
Pattern Recognition ◽  
Infrared Spectroscopy ◽  
Gas Phase ◽  
Energetic Materials ◽  
Organic Peroxide ◽  
Triacetone Triperoxide ◽  
Quantum Cascade ◽  
Spectroscopic Information ◽  
Ft Ir ◽  
Highly Energetic Materials

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 chemometrics-enhanced 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.

Gas-phase exposure history derived from material-phase concentration profiles

2007 ◽  
Vol 41 (15) ◽  
pp. 3276-3286
Author(s):  
G.C. Morrison ◽  
J.C. Little ◽  
Y. Xu ◽  
M. Rao ◽  
D. Enke
Keyword(s):  
Gas Phase ◽  
Concentration Profiles ◽  
Phase Concentration ◽  
Exposure History

scholarly journals Generalization Across Acetone Peroxide Homemade Explosives by Detection Dogs

2021 ◽  
Vol 1 ◽  
Author(s):  
Lucia Lazarowski ◽  
Alison Simon ◽  
Sarah Krichbaum ◽  
Craig Angle ◽  
Melissa Singletary ◽  
...  
Keyword(s):  
Individual Variation ◽  
Individual Variability ◽  
High Variability ◽  
Explosives Detection ◽  
Chemical Analyses ◽  
Triacetone Triperoxide ◽  
Similarities And Differences ◽  
Acetone Peroxide ◽  
Diacetone Diperoxide ◽  
Security Gap

Effective explosives detection requires dogs to generalize their response to untrained variations of targets that are related to those with which they were trained. Previous research suggests that dogs tend to be highly specific to their trained odors, and are sensitive to alterations in odor profiles. Triacetone triperoxide (TATP) is an increasingly popular homemade explosive due to the widespread accessibility of starting materials. The large variety of reagent sources and production approaches yields high variability in deployed formulations. Whether dogs trained with pure forms of TATP generalize to other variations is unknown, representing a potentially significant security gap. In the current study, we tested dogs (n = 11) previously trained to detect pure TATP with four variants: diacetone diperoxide (DADP), a homologue often created as a TATP byproduct, and three different clandestine TATP formulations designed to emulate those used by terrorists or insurgents. On average, dogs detected each untrained variant at rates equivalent to the trained TATP (ps > 0.07), with individual variability in first-trial alerts for some of the variants. Chemical analyses paralleled the canine results, showing distinct similarities and differences. For the TATP samples, the laboratory-grade was the purest sample tested and did not contain DADP or the TATP homologue that the three clandestine versions showed in their respective headspace profiles. The headspace results showed that each sample could be clearly identified as TATP, yet they showed recognizable differences due to their individual syntheses. These findings suggest that training on pure TATP may be effective for generalization to untrained variants. Further research is necessary to identify factors that influence individual variation in generalization between dogs, as well as other explosives.

In-situ identification of TATP and DADP particles collected with transparent tapes by Raman spectroscopy and imaging

2021 ◽  
Author(s):  
Zhenwen Sun ◽  
Guannan Zhang ◽  
Yonggang Li ◽  
Ting Qiao ◽  
Zhanfang Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Terrorist Attacks ◽  
Triacetone Triperoxide ◽  
High Explosives ◽  
Diacetone Diperoxide

Triacetone triperoxide (TATP) and its byproduct diacetone diperoxide (DADP) are commonly used home-made high explosives in bombing cases and terrorist attacks. However, these two peroxide explosives are unstable and prone...

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