Human portable preconcentrator system
Abstract
A preconcentrator system and apparatus suited to human portable use wherein sample potentially containing a target chemical substance is drawn into a chamber and through a pervious screen. The screen is adapted to capture target chemicals and then, upon heating, to release those chemicals into the chamber. Chemicals captured and then released in this fashion are then carried to a portable chemical detection device such as a portable ion mobility spectrometer. In the preferred embodiment, the means for drawing sample into the chamber comprises a reversible fan which, when operated in reverse direction, creates a backpressure that facilitates evolution of captured target chemicals into the chamber when the screen is heated. The screen can be positioned directly in front of the detector prior to heating to improve detection capability.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174439
- Patent Number(s):
- 6604406
- Application Number:
- 09/917,017
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Linker, Kevin L., Brusseau, Charles A., Hannum, David W., Puissant, James G., and Varley, Nathan R. Human portable preconcentrator system. United States: N. p., 2003.
Web.
Linker, Kevin L., Brusseau, Charles A., Hannum, David W., Puissant, James G., & Varley, Nathan R. Human portable preconcentrator system. United States.
Linker, Kevin L., Brusseau, Charles A., Hannum, David W., Puissant, James G., and Varley, Nathan R. Tue .
"Human portable preconcentrator system". United States. https://www.osti.gov/servlets/purl/1174439.
@article{osti_1174439,
title = {Human portable preconcentrator system},
author = {Linker, Kevin L. and Brusseau, Charles A. and Hannum, David W. and Puissant, James G. and Varley, Nathan R.},
abstractNote = {A preconcentrator system and apparatus suited to human portable use wherein sample potentially containing a target chemical substance is drawn into a chamber and through a pervious screen. The screen is adapted to capture target chemicals and then, upon heating, to release those chemicals into the chamber. Chemicals captured and then released in this fashion are then carried to a portable chemical detection device such as a portable ion mobility spectrometer. In the preferred embodiment, the means for drawing sample into the chamber comprises a reversible fan which, when operated in reverse direction, creates a backpressure that facilitates evolution of captured target chemicals into the chamber when the screen is heated. The screen can be positioned directly in front of the detector prior to heating to improve detection capability.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 12 00:00:00 EDT 2003},
month = {Tue Aug 12 00:00:00 EDT 2003}
}