Aerodynamic resuspension and contact removal of energetic particles from smooth, rough, and fibrous surfaces.
Aerodynamic resuspension
Energetic particles residue
Non-contact sampling
Planar jet
Trace explosives
Wall shear stress
Journal
Talanta
ISSN: 1873-3573
Titre abrégé: Talanta
Pays: Netherlands
ID NLM: 2984816R
Informations de publication
Date de publication:
15 Aug 2021
15 Aug 2021
Historique:
received:
30
01
2021
revised:
20
03
2021
accepted:
22
03
2021
entrez:
9
5
2021
pubmed:
10
5
2021
medline:
10
5
2021
Statut:
ppublish
Résumé
Surface sampling for trace explosives residues is a critical step in the security screening in which microparticles are collected for subsequent chemical analysis. The current surface swabbing approach suffers from limited sampling area coverage, uncertainty in harvesting efficiencies, and user bias. Non-contact sampling has received interest due to its ability to interrogate large surface areas without the redeposition of the collected sample. However, the aerodynamic liberation of energetic particles from different types of substrates has not been parameterized or directly compared with the contact sampling methods. Here, we report aerodynamic resuspension rates of TNT, RDX, and HMX microparticles from smooth, rough, and fibrous surfaces. The resuspension thresholds are correlated to the boundary layer properties, i.e., wall shear stresses (τ
Identifiants
pubmed: 33965023
pii: S0039-9140(21)00277-0
doi: 10.1016/j.talanta.2021.122356
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
122356Informations de copyright
Copyright © 2021 Elsevier B.V. All rights reserved.