2013年1月1日 · In this study, we investigated the effects of swab brands and moistening agents on DNA collection from adhesive tape, a common IED substrate. A full factorial design using four cotton swab brands (two forensic and two medical cotton swabs) and six moistening agents (DNA-free water, phosphate-buffered saline, ethanol, sodium dodecyl sulfate ...

In this work we show that a simple swab configuration can be made to sample TNT, PETN and RDX from the raw materials, from a variety of surfaces in a realistic IED package, and from blast craters after detonating the devices, and that the explosive traces on these swabs can be detected by organic semiconductor thin films.

2015年7月1日 · We used six swabs and six reagents to collect DNA from four common IED substrates. Swabs had the biggest influence but all factors interacted with each other. Solar tape outperformed other tape-lifts but was not different from swabbing. New protocols significantly improved STR profiles for IED casework samples.

2019年12月1日 · DART-MS was verified to identify trace explosive residues by direct analysis of the post-blast IED fragments themselves and by using samples collected by either dry or wet swabs. Dry swabs were found effective for explosive residue recovery and yielded the least co-extracted environmental background.

2020年7月30日 · Improvised Explosive Devices (IEDs) are weapons of modern times, used by terrorist groups and thereby causing substantial damage to communities. There is a...

In this work we show that a simple swab configuration can be made to sample TNT, PETN and RDX from the raw materials, from a variety of surfaces in a realistic IED package, and from blast craters after detonating the devices, and that the explosive traces on these swabs can be detected by organic semiconductor thin films.

2013年12月31日 · Across all experiments, the cotton swab combined with the spin-column extractions was shown to be most effective, with the nylon swab and BioRobot EZ1 combination being the least effective.

With a single swab, the TraceX explosives detection device detects all the major families of explosive materials and their precursors. Thanks to the TraceX’s simple color-change alert system, a single color indicates the presence of a particular family of explosive material.

2014年10月16日 · New techniques for the field detection of inorganic improvised explosive devices (IEDs) are urgently developed. Although ion mobility spectrometry (IMS) has been proved to be the most effective...

2020年10月9日 · Swabs taken from the surface of a suspicious object are a standard method of identifying a concealed explosive device in security-conscious locations like airports. In this paper...