Device for collecting and analyzing matrix-isolated samples

Reedy, Gerald T

Title: Device for collecting and analyzing matrix-isolated samples

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Abstract

A gas-sample collection device is disclosed for matrix isolation of individual gas bands from a gas chromatographic separation and for presenting these distinct samples for spectrometric examination. The device includes a vacuum chamber containing a rotatably supported, specular carrousel having a number of external, reflecting surfaces around its axis of rotation for holding samples. A gas inlet is provided for depositing sample and matrix material on the individual reflecting surfaces maintained at a sufficiently low temperature to cause solidification. Two optical windows or lenses are installed in the vacuum chamber walls for transmitting a beam of electromagnetic radiation, for instance infrared light, through a selected sample. Positioned within the chamber are two concave mirrors, the first aligned to receive the light beam from one of the lenses and focus it to the sample on one of the reflecting surfaces of the carrousel. The second mirror is aligned to receive reflected light from that carrousel surface and to focus it outwardly through the second lens. The light beam transmitted from the sample is received by a spectrometer for determining absorption spectra.

Inventors:

Reedy, Gerald T ^[1]

Lemont, IL

Issue Date:: 1979-01-01

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

OSTI Identifier:: 863377

Patent Number(s):: 4158772

Assignee:: United States of America as represented by United States (Washington, DC)

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

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/3504 - for analysing gases, e.g. multi-gas analysis

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: device; collecting; analyzing; matrix-isolated; samples; gas-sample; collection; disclosed; matrix; isolation; individual; gas; bands; chromatographic; separation; distinct; spectrometric; examination; vacuum; chamber; containing; rotatably; supported; specular; carrousel; external; reflecting; surfaces; axis; rotation; holding; inlet; provided; depositing; sample; material; maintained; sufficiently; temperature; solidification; optical; windows; lenses; installed; walls; transmitting; beam; electromagnetic; radiation; instance; infrared; light; selected; positioned; concave; mirrors; aligned; receive; focus; mirror; reflected; surface; outwardly; lens; transmitted; received; spectrometer; determining; absorption; spectra; concave mirrors; rotatably supported; individual gas; infrared light; reflecting surfaces; collection device; sample collection; matrix material; gas inlet; vacuum chamber; electromagnetic radiation; light beam; reflecting surface; chamber containing; concave mirror; reflected light; chamber wall; gas chromatograph; chromatographic separation; absorption spectra; beam transmitted; gas chromatographic; chamber walls; matrix isolation; gas-sample collection; gas bands; /250/356/

Citation Formats


                    Reedy, Gerald T. Device for collecting and analyzing matrix-isolated samples.  United States: N. p., 1979. 
        Web.

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                    Reedy, Gerald T. Device for collecting and analyzing matrix-isolated samples.  United States.

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                    Reedy, Gerald T. Mon .  
        "Device for collecting and analyzing matrix-isolated samples".  United States.  https://www.osti.gov/servlets/purl/863377.

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@article{osti_863377,

  title        = {Device for collecting and analyzing matrix-isolated samples},

  author       = {Reedy, Gerald T},

  abstractNote = {A gas-sample collection device is disclosed for matrix isolation of individual gas bands from a gas chromatographic separation and for presenting these distinct samples for spectrometric examination. The device includes a vacuum chamber containing a rotatably supported, specular carrousel having a number of external, reflecting surfaces around its axis of rotation for holding samples. A gas inlet is provided for depositing sample and matrix material on the individual reflecting surfaces maintained at a sufficiently low temperature to cause solidification. Two optical windows or lenses are installed in the vacuum chamber walls for transmitting a beam of electromagnetic radiation, for instance infrared light, through a selected sample. Positioned within the chamber are two concave mirrors, the first aligned to receive the light beam from one of the lenses and focus it to the sample on one of the reflecting surfaces of the carrousel. The second mirror is aligned to receive reflected light from that carrousel surface and to focus it outwardly through the second lens. The light beam transmitted from the sample is received by a spectrometer for determining absorption spectra.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1979},

  month        = {1}

}

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