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Portable chemical detection system with intergrated preconcentrator

United States Patent

6,978,657
December 27, 2005
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A portable system for the detection of chemical particles such as explosive residue utilizes a metal fiber substrate that may either be swiped over a subject or placed in a holder in a collection module which can shoot a jet of gas at the subject to dislodge residue, and then draw the air containing the residue into the substrate. The holder is then placed in a detection module, which resistively heats the substrate to evolve the particles, and provides a gas flow to move the particles to a miniature detector in the module.
Baumann; Mark J. (Albuqueruqe, NM), Brusseau; Charles A. (Tijeras, NM), Hannum; David W. (Albuquerque, NM), Linker; Kevin L. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
10/ 306,939
November 27, 2002
The United States Government has rights in this invention pursuant to Department of Energy Contract No. DE-AC04-94AL85000 with Sandia Corporation.