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Showing 13 to 24 of 136 entries
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Fate dynamics of environmentally exposed explosive traces.

The journal of physical chemistry. A

Kunz RR, Gregory KE, Aernecke MJ, Clark ML, Ostrinskaya A, Fountain AW.
PMID: 22424334
J Phys Chem A. 2012 Apr 12;116(14):3611-24. doi: 10.1021/jp211260t. Epub 2012 Mar 29.

The chemical and physical fates of trace amounts (

Assessment of dispersion corrected atom centered pseudopotentials: application to energetic molecular crystals.

The journal of physical chemistry. B

Balu R, Byrd EF, Rice BM.
PMID: 21250728
J Phys Chem B. 2011 Feb 10;115(5):803-10. doi: 10.1021/jp107760k. Epub 2011 Jan 20.

A comparative study of the structural features of molecular crystals 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane (HMX), cyclotrimethylenetrinitramine (RDX), 2,4,6-trinitro-1,3,5-benzenetriamine (TATB), and pentaerythritol tetranitrate (PETN) at ambient pressure were calculated using density functional theory (DFT) and dispersion corrected atom centered pseudopotentials (DCACPs). While the...

Selective detection of trace nitroaromatic, nitramine, and nitrate ester explosive residues using a three-step fluorimetric sensing process: a tandem turn-off, turn-on sensor.

Journal of forensic sciences

Sanchez JC, Toal SJ, Wang Z, Dugan RE, Trogler WC.
PMID: 17944906
J Forensic Sci. 2007 Nov;52(6):1308-13. doi: 10.1111/j.1556-4029.2007.00560.x. Epub 2007 Oct 17.

Detection of trace quantities of explosive residues plays a key role in military, civilian, and counter-terrorism applications. To advance explosives sensor technology, current methods will need to become cheaper and portable while maintaining sensitivity and selectivity. The detection of...

Experimental and TD-DFT study of optical absorption of six explosive molecules: RDX, HMX, PETN, TNT, TATP, and HMTD.

The journal of physical chemistry. A

Cooper JK, Grant CD, Zhang JZ.
PMID: 23432018
J Phys Chem A. 2013 Jul 25;117(29):6043-51. doi: 10.1021/jp312492v. Epub 2013 Mar 12.

Time dependent density function theory (TD-DFT) has been utilized to calculate the excitation energies and oscillator strengths of six common explosives: RDX (1,3,5-trinitroperhydro-1,3,5-triazine), β-HMX (octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine), TATP (triacetone triperoxide), HMTD (hexamethylene triperoxide diamine), TNT (2,4,6-trinitrotoluene), and PETN (pentaerythritol tetranitrate). The...

Organic nanocomposite structure tailored by controlling droplet coalescence during inkjet printing.

ACS applied materials & interfaces

Ihnen AC, Petrock AM, Chou T, Fuchs BE, Lee WY.
PMID: 22950443
ACS Appl Mater Interfaces. 2012 Sep 26;4(9):4691-9. doi: 10.1021/am301050n. Epub 2012 Sep 05.

Inkjet printing offers a low-cost, high-throughput avenue for producing functional organic materials through rapid translation of desktop discoveries to industrial roll-to-roll processes. Here, we report a simple, but effective strategy to control droplet coalescence during inkjet printing, as a...

Evaluation of different sampling media for their potential use as a combined swab for the collection of both organic and inorganic explosive residues.

Forensic science international

Song-im N, Benson S, Lennard C.
PMID: 22658743
Forensic Sci Int. 2012 Oct 10;222(1):102-10. doi: 10.1016/j.forsciint.2012.05.006. Epub 2012 May 31.

Commercially available skin cleansing alcohol wipes and conventional swabs were investigated for their use as a universal sampling medium for the simultaneous collection of both organic and inorganic explosive residues. Six compounds with the potential to be encountered in...

Sensitive detection of black powder by stand-alone ion mobility spectrometer with chlorinated hydrocarbon modifiers in drift gas.

Talanta

Liang X, Wang X, Wang W, Zhou Q, Chen C, Peng L, Wen M, Qu T, Wang Z, Zhao K, Li J, Li H.
PMID: 24607130
Talanta. 2014 Apr;121:215-9. doi: 10.1016/j.talanta.2014.01.003. Epub 2014 Jan 18.

This paper introduces a simple method for selective and sensitive detection of black powder by adding chlorinated hydrocarbons in the drift gas instead of changing the structure of conventional ion mobility spectrometer (IMS). The function of chloride modifiers was...

Application of paper spray ionization for explosives analysis.

Rapid communications in mass spectrometry : RCM

Tsai CW, Tipple CA, Yost RA.
PMID: 28681982
Rapid Commun Mass Spectrom. 2017 Oct 15;31(19):1565-1572. doi: 10.1002/rcm.7932.

RATIONALE: A desired feature in the analysis of explosives is to decrease the time of the entire analysis procedure, including sampling. A recently utilized ambient ionization technique, paper spray ionization (PSI), provides the possibility of combining sampling and ionization....

Detection of highly energetic materials on non-reflective substrates using quantum cascade laser spectroscopy.

Applied spectroscopy

Castro-Suarez JR, Hidalgo-Santiago M, Hernández-Rivera SP.
PMID: 26414522
Appl Spectrosc. 2015 Sep;69(9):1023-35. doi: 10.1366/14-07626.

A quantum cascade laser spectrometer was used to obtain the reflection spectra of highly energetic materials (HEMs) deposited on nonideal, low-reflectivity substrates, such as travel-bag fabric (polyester), cardboard, and wood. Various deposition methods were used to prepare the standards...

Generating highly specific spectra and identifying thermal decomposition products via Gas Chromatography / Vacuum Ultraviolet Spectroscopy (GC/VUV): Application to nitrate ester explosives.

Talanta

Cruse CA, Goodpaster JV.
PMID: 30625586
Talanta. 2019 Apr 01;195:580-586. doi: 10.1016/j.talanta.2018.11.060. Epub 2018 Nov 22.

Gas chromatography/mass spectrometry (GC/MS) is a "workhorse" instrument for chemical analysis, but it can be limited in its ability to differentiate structurally similar compounds. The coupling of GC to vacuum ultraviolet (VUV) spectroscopy is a recently developed technique with...

Mass spectrometry of the soot left after ethylene oxide explosion answers some questions on the crash of Polish Air Force Flight 101.

Journal of forensic sciences

Wójcik J.
PMID: 34766629
J Forensic Sci. 2021 Nov 12; doi: 10.1111/1556-4029.14943. Epub 2021 Nov 12.

The Polish TU 154M plane, Polish Air Force Flight 101, had crashed near Smolensk on 10th of April 2010. The crash was investigated by The Interstate Aviation Committee, whose conclusions were questioned by a number of Polish scientists. The...

Air blast TNT equivalence factors of high explosive material PETN for bare charges.

Journal of hazardous materials

Xiao W, Andrae M, Gebbeken N.
PMID: 31158584
J Hazard Mater. 2019 Sep 05;377:152-162. doi: 10.1016/j.jhazmat.2019.05.078. Epub 2019 May 28.

The concept of TNT equivalence is often invoked to predict the blast parameters generated from explosions, in which high explosives other than Trinitrotoluene (TNT) are used. This paper discusses the TNT equivalence concept for bare charges using Pentaerythritol tetranitrate...

Showing 13 to 24 of 136 entries