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What tool is used in an explosion site to chemically detect explosive residues on objects? 

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The methods and results presented in this paper offer a very useful tool which could be employed to aid forensic investigations of future explosion incidents involving steel drums or similar field objects.
The device is capable of performing six simultaneous tests, including the detection of metallic salts present in primer residues and pyrotechnic low explosive devices.
These experiments open wide perspectives for the detection of IEDs (improvised explosive devices) through windows located, for instance, inside vehicles, industrial warehouses and buildings where explosive residues have been produced, handled, stored or prepared.
Book ChapterDOI
J. Almog, S. Zitrin 
01 Jan 2009
Their application is easy, the equipment required is simple and inexpensive, their sensitivities are often in the sub-microgram range, and they enable rapid, on-site diagnostic detection of explosive materials.
The BOS technique is shown to be an important tool for explosive research which can be simply incorporated into typical large-scale outdoor tests.
Direct analysis in real-time time-of-flight mass spectrometry has provided rapid identification of residues from various samples from explosion scenes and, therefore, is a potential powerful screening tool for criminal evidence.
The particle size distribution and chemical composition of the explosive residues can be used to evaluate their future environmental fate and transport.
Moreover, the polymers can also be used as explosive detector.
This method is also useful for collecting gunshot residues from other objects, such as leather.
Swabs from metal surfaces are of value in establishing the nature of the explosive charge provided they are located within a short distance of the explosive site.
The simulation results showed that the proposed technique can efficiently detect and classify buried objects for counter‐improvised explosive device operations in the military.
New technique provides fast and simple detection of explosive fingerprint residues on various surfaces.
Findings demonstrate the suitability of this technique as a screening tool for explosive compounds.
Results from these experiments point towards the usefulness of this technique as a potential screening tool for explosive compounds.
The proposed method is simple, fast, and could be applied successfully to the analysis of explosive residues in contaminated water without any further pretreatment.

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