Trace detection of explosives by ion mobility spectrometry

Debono, Reno; Lareau, Richard T.

doi:10.1016/b978-0-444-64104-5.00013-8

Cited by 4 publications

(2 citation statements)

References 79 publications

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“…Over the decades, several techniques have been developed for the detection of explosives, such as X-ray imaging, gas chromatography coupled with mass spectroscopy, 7 ion mobility spectroscopy (IMS), 8,9 and surface-enhanced Raman scattering (SERS). 10,11 Such methods, however, need expensive instrumentation and a complicated set-up followed by a long response time.…”

Section: Introductionmentioning

confidence: 99%

BODIPY-based fluorescent sensors for detection of explosives

Nguyen

Shin

Kwon

et al. 2023

Journal of Chemical Research

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The detecting and screening of explosives has become a global consideration in dealing with potential terrorism threats and the misuse of high explosives. Several detection techniques have been developed, but their disadvantages include the requirement of expensive equipment, complicated pre-treatment, and prolonged testing. So far, fluorescence-based sensors have been of great interest as they overcome the limitations of other techniques. BODIPY, which is a fluorophore, shows excellent fluorescence features, and it can be used as a sensor material for explosives detection. However, to date, BODIPY-based explosive sensors have not been explored in detail. This work reviews the recent developments on explosive sensors based on BODIPY and its analogs.

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Section: Introductionmentioning

confidence: 99%

BODIPY-based fluorescent sensors for detection of explosives

Nguyen

Shin

Kwon

et al. 2023

Journal of Chemical Research

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“…Detecting trace amounts of explosives is extremely important due to the growing threat of terrorist attacks. In trace detection, explosive material is detected by identifying microscopic residues of explosive compounds [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Stationary Explosive Trace Detection System Using Differential Ion Mobility Spectrometry (DMS)

Szyposzyńska,

Spławska,

Ceremuga

et al. 2023

Sensors

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Detecting trace amounts of explosives is important for maintaining national security due to the growing threat of terror attacks. Particularly challenging is the increasing use of homemade explosives. Therefore, there is a constant need to improve existing technologies for detecting trace amounts of explosives. This paper describes the design of a stationary device (a gate) for detecting trace amounts of explosives and explosive taggants and the design of differential ion mobility spectrometers with a focus on the gas system. Nitromethane (NM), trimeric acetone peroxide (TATP), hexamine peroxide (HMTD), and explosive taggants 2,3-dimethyl-2,3-dinitrobutane (DMDNB) and 4-nitrotoluene (4NT) were used in this study. Gate measurements were carried out by taking air from the hands, pocket area, and shoes of the tested person. Two differential ion mobility spectrometers operating in two different modes were used as explosive detectors: a mode with a semi-permeable membrane to detect explosives with high vapor pressures (such as TATP) and a mode without a semi-permeable membrane (using direct introduction of the sample into the measuring chamber) to detect explosives with low vapor pressures (such as HMTD). The device was able to detect trace amounts of selected explosives/explosive taggants in 5 s.

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Ion Mobility Spectrometry in Forensic Science

Joshi

2024

Encyclopedia of Analytical Chemistry

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Ion mobility spectrometry ( IMS ) is a valuable screening technique for hazardous chemicals in the field. It is prolifically used by law enforcement agencies, emergency response personnel, security agencies, and the military to detect explosives, illicit drugs, toxic industrial chemicals, and chemical warfare agents. IMS has been greatly successful, thanks to its portability, ruggedness, ability to operate at ambient pressures, low power requirements, simplicity, fast analysis times, and excellent sensitivity to target substances. This article outlines the current status of IMS and explores exciting innovations that could bring mobility principles to the laboratory, potentially improving the efficiency and accuracy of chemical analyses. The growth of gas chromatography‐ion mobility spectrometry ( GC–IMS ) and ion mobility‐mass spectrometry ( IM–MS ) could be an avenue for exploration in forensic science analysis. Both techniques improve upon IMS by addressing its weaknesses of poor resolution and susceptibility to mixtures. These are the primary obstacles to the laboratory use of IMS. As IMS continues to serve as a trace chemical monitor in the field, these developments in the coupling of IMS principles with other analytical techniques are giving mobility spectrometry a new purpose in the laboratory.

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Trace detection of explosives by ion mobility spectrometry

Cited by 4 publications

References 79 publications

BODIPY-based fluorescent sensors for detection of explosives

BODIPY-based fluorescent sensors for detection of explosives

Stationary Explosive Trace Detection System Using Differential Ion Mobility Spectrometry (DMS)

Ion Mobility Spectrometry in Forensic Science

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