TY  - JOUR
PY  - 2017//
TI  - Tape lift sampling of chemical threat agents
JO  - Journal of forensic sciences
A1  - Brady, Krista
A1  - Stilley, Becky
A1  - Olds, Maria
A1  - O'Neill, Terry
A1  - Egan, James
A1  - Durnal, Evan
SP  - 1015
EP  - 1021
VL  - 62
IS  - 4
N2  - Commercial-off-the-shelf (COTS) materials were evaluated as surface samplers for the Department of Homeland Security Chemical Forensics Program. The program helps evidence collectors identify trace chemical residues at incident scenes. COTS items are widely available, produced in large lots, and with strict controls. Chemical attribution signatures were collected from common surfaces. Eight tape lift candidates were considered, five were chosen based on performance and tested for analytical interferences and extraction efficiencies with 14 chemicals. Three products (duct tape, print lifters, command strips) were evaluated for uptake from common interior surfaces (glass, tile, ABS plastic). Duct tape provided highest recoveries across all surfaces. Even the most volatile analytes were detected in the ABS plastic samples (nondetections in others), regardless of tape lift material used. The porous plastic substrate provides better target retention than glass and tile surfaces. Forensic field operators should sample surfaces made of ABS plastic (keyboards, remotes, phones, etc.) whenever possible.<br><br>© 2017 American Academy of Forensic Sciences.<p />  <p>Language: en</p>
LA  - en
SN  - 0022-1198
UR  - http://dx.doi.org/10.1111/1556-4029.13363
ID  - ref1
ER  -