Methods for improved preconcentrators

Manginell, Ronald P; Lewis, Patrick R; Okandan, Murat

Title: Methods for improved preconcentrators

Abstract

The present invention relates generally to chemical analysis (e.g. by gas chromatography), and in particular to a compact chemical preconcentrator formed on a substrate with a heatable sorptive membrane that can be used to accumulate and concentrate one or more chemical species of interest over time and then rapidly release the concentrated chemical species upon demand for chemical analysis.

Inventors:

Manginell, Ronald P ^[1]; Lewis, Patrick R ^[1]; Okandan, Murat ^[2]

Albuquerque, NM
Edgewood, NM

Issue Date:: 2010-06-01

Research Org.:: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 985219

Patent Number(s):: 7727314

Application Number:: 11/699,904

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Show more

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N1/405 - {by adsorption or absorption}
G01N30/6095 - {Micromachined or nanomachined, e.g. micro- or nanosize}
G01N30/08 - using an enricher
G01N1/4022 - {by thermal techniques

Show less

DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Manginell, Ronald P, Lewis, Patrick R, and Okandan, Murat. Methods for improved preconcentrators.  United States: N. p., 2010. 
        Web.

Copy to clipboard


                    Manginell, Ronald P, Lewis, Patrick R, & Okandan, Murat. Methods for improved preconcentrators.  United States.

Copy to clipboard


                    Manginell, Ronald P, Lewis, Patrick R, and Okandan, Murat. Tue .  
        "Methods for improved preconcentrators".  United States.  https://www.osti.gov/servlets/purl/985219.

Copy to clipboard


                    
@article{osti_985219,

  title        = {Methods for improved preconcentrators},

  author       = {Manginell, Ronald P and Lewis, Patrick R and Okandan, Murat},

  abstractNote = {The present invention relates generally to chemical analysis (e.g. by gas chromatography), and in particular to a compact chemical preconcentrator formed on a substrate with a heatable sorptive membrane that can be used to accumulate and concentrate one or more chemical species of interest over time and then rapidly release the concentrated chemical species upon demand for chemical analysis.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2010},

  month        = {6}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Recent advancements in the gas-phase MicroChemLab
conference, December 2004

Manginell, Ronald P.; Lewis, Patrick R.; Adkins, Douglas R.
Optics East, SPIE Proceedings
https://doi.org/10.1117/12.581956

Recent advancements in the gas-phase MicroChemLab
journal, June 2006

Le, P. R.; Manginell, P.; Adkins, D. R.
IEEE Sensors Journal, Vol. 6, Issue 3
https://doi.org/10.1109/JSEN.2006.874495

Similar Records in DOE Patents and OSTI.GOV collections:

System and method for preconcentrating, identifying, and quantifying chemical and biological substances

Patent Yu, Conrad M [Antioch, CA]; Koo, Jackson C [San Ramon, CA]

A system and method for preconcentrating, identifying, and quantifying chemical and biological substances is disclosed. An input valve directs a first volume of a sample gas to a surface acoustic wave (SAW) device. The SAW device preconcentrates and detects a mass of a substance within the sample gas. An output valve receives a second volume of the sample gas containing the preconcentrated substance from the SAW device and directs the second volume to a gas chromatograph (GC). The GC identifies the preconcentrated substance within the sample gas. A shunt valve exhausts a volume of the sample gas equal to themore »« less
Full Text Available
Method for preconcentrating a sample for subsequent analysis

Patent Zaromb, Solomon [Hinsdale, IL]

A system for analysis of trace concentration of contaminants in air includes a portable liquid chromatograph and a preconcentrator for the contaminants to be analyzed. The preconcentrator includes a sample bag having an inlet valve and an outlet valve for collecting an air sample. When the sample is collected the sample bag is connected in series with a sorbing apparatus in a recirculation loop. The sorbing apparatus has an inner gas-permeable container containing a sorbent material and an outer gas-impermeable container. The sample is circulated through the outer container and around the inner container for trapping and preconcentrating the contaminantsmore »« less
Full Text Available
High-throughput liquid-absorption preconcentrator sampling methods

Patent Zaromb, Solomon [95706 William Dr., Hinsdale, IL 60521]

A system for detecting trace concentrations of an analyte in air includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container comprising a wettable material. The wettable material is continuously wetted with an analyte-sorbing liquid which flows from one part of the container to a lower end. Sampled air flows through the container in contact with the wetted material with a swirling motion which results in efficient transfer of analyte vapors or aerosol particles to the sorbing liquid and preconcentration of traces of analyte in the liquid. The preconcentrated traces of analyte maymore »« less
Full Text Available
Particle preconcentrator

Patent Linker, Kevin L.; Conrad, Frank J.; Custer, Chad A.; ...

An apparatus and method for preconcentrating particles and vapors. The preconcentrator apparatus permits detection of highly diluted amounts of particles in a main gas stream, such as a stream of ambient air. A main gas stream having airborne particles entrained therein is passed through a pervious screen. The particles accumulate upon the screen, as the screen acts as a sort of selective particle filter. The flow of the main gas stream is then interrupted by diaphragm shutter valves, whereupon a cross-flow of carrier gas stream is blown parallel past the faces of the screen to dislodge the accumulated particles andmore »« less
Full Text Available
Portable chemical detection system with intergrated preconcentrator

Patent Baumann, Mark J.; Brusseau, Charles A.; Hannum, David W.; ...

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.
Full Text Available

Similar Records

Title: Methods for improved preconcentrators

Abstract

Citation Formats

Recent advancements in the gas-phase MicroChemLab conference, December 2004

Recent advancements in the gas-phase MicroChemLab journal, June 2006

Recent advancements in the gas-phase MicroChemLab
conference, December 2004

Recent advancements in the gas-phase MicroChemLab
journal, June 2006