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Title: 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.

Inventors:
 [1];  [1];  [1];  [2]
+ Show Inventor Affiliations
  1. Albuquerque, NM
  2. (Albuquerque, NM)
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
875065
Patent Number(s):
6523393
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
human; portable; preconcentrator; apparatus; suited; sample; potentially; containing; target; chemical; substance; drawn; chamber; pervious; screen; adapted; capture; chemicals; heating; release; captured; released; fashion; carried; detection; device; mobility; spectrometer; embodiment; means; drawing; reversible; fan; operated; reverse; direction; creates; backpressure; facilitates; evolution; heated; target chemical; chemical substance; /73/422/

Citation Formats

Linker, Kevin L, Bouchier, Francis A, Hannum, David W, and Rhykerd, Jr., Charles L.. Human portable preconcentrator system. United States: N. p., 2003. Web.
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Linker, Kevin L, Bouchier, Francis A, Hannum, David W, & Rhykerd, Jr., Charles L.. Human portable preconcentrator system. United States.
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Linker, Kevin L, Bouchier, Francis A, Hannum, David W, and Rhykerd, Jr., Charles L.. Wed . "Human portable preconcentrator system". United States. https://www.osti.gov/servlets/purl/875065.
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@article{osti_875065,
title = {Human portable preconcentrator system},
author = {Linker, Kevin L and Bouchier, Francis A and Hannum, David W and Rhykerd, Jr., Charles L.},
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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}
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