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Title: Analyte separation utilizing temperature programmed desorption of a preconcentrator mesh

Abstract

A method and system for controllably releasing contaminants from a contaminated porous metallic mesh by thermally desorbing and releasing a selected subset of contaminants from a contaminated mesh by rapidly raising the mesh to a pre-determined temperature step or plateau that has been chosen beforehand to preferentially desorb a particular chemical specie of interest, but not others. By providing a sufficiently long delay or dwell period in-between heating pulses, and by selecting the optimum plateau temperatures, then different contaminant species can be controllably released in well-defined batches at different times to a chemical detector in gaseous communication with the mesh. For some detectors, such as an Ion Mobility Spectrometer (IMS), separating different species in time before they enter the IMS allows the detector to have an enhanced selectivity.

Inventors:
 [1];  [1];  [1];  [2]
  1. Albuquerque, NM
  2. Edgewood, NM
Issue Date:
Research Org.:
Sandia Corporation (Albuquerque, NM)
Sponsoring Org.:
USDOE - National Nuclear Security Administration (NNSA)
OSTI Identifier:
920893
Patent Number(s):
7,299,711
Application Number:
11/286,015
Assignee:
Sandia Corporation (Albuquerque, NM)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Linker, Kevin L, Bouchier, Frank A, Theisen, Lisa, and Arakaki, Lester H. Analyte separation utilizing temperature programmed desorption of a preconcentrator mesh. United States: N. p., 2007. Web.
Linker, Kevin L, Bouchier, Frank A, Theisen, Lisa, & Arakaki, Lester H. Analyte separation utilizing temperature programmed desorption of a preconcentrator mesh. United States.
Linker, Kevin L, Bouchier, Frank A, Theisen, Lisa, and Arakaki, Lester H. Tue . "Analyte separation utilizing temperature programmed desorption of a preconcentrator mesh". United States. https://www.osti.gov/servlets/purl/920893.
@article{osti_920893,
title = {Analyte separation utilizing temperature programmed desorption of a preconcentrator mesh},
author = {Linker, Kevin L and Bouchier, Frank A and Theisen, Lisa and Arakaki, Lester H},
abstractNote = {A method and system for controllably releasing contaminants from a contaminated porous metallic mesh by thermally desorbing and releasing a selected subset of contaminants from a contaminated mesh by rapidly raising the mesh to a pre-determined temperature step or plateau that has been chosen beforehand to preferentially desorb a particular chemical specie of interest, but not others. By providing a sufficiently long delay or dwell period in-between heating pulses, and by selecting the optimum plateau temperatures, then different contaminant species can be controllably released in well-defined batches at different times to a chemical detector in gaseous communication with the mesh. For some detectors, such as an Ion Mobility Spectrometer (IMS), separating different species in time before they enter the IMS allows the detector to have an enhanced selectivity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {11}
}

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