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  • 1
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    Chemical Detection and Identification Techniques for Exobiology Flight Experiments (2002)
    In:  Other Sources
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    Publication Date: 2019-07-18
    Description: Exobiology flight experiments require highly sensitive instrumentation for in situ analysis of the volatile chemical species that occur in the atmospheres and surfaces of various bodies within the solar system. The complex mixtures encountered place a heavy burden on the analytical Instrumentation to detect and identify all species present. The minimal resources available onboard for such missions mandate that the instruments provide maximum analytical capabilities with minimal requirements of volume, weight and consumables. Advances in technology may be achieved by increasing the amount of information acquired by a given technique with greater analytical capabilities and miniaturization of proven terrestrial technology. We describe here methods to develop analytical instruments for the detection and identification of a wide range of chemical species using Gas Chromatography. These efforts to expand the analytical capabilities of GC technology are focused on the development of detectors for the GC which provide sample identification independent of the GC retention time data. A novel new approach employs Penning Ionization Electron Spectroscopy (PIES).
    Keywords: Inorganic, Organic and Physical Chemistry
    Type: Paper-516658 , American Chemical Society National Meeting; Apr 07, 2002 - Apr 11, 2002; Orlando, FL; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Development of Ion Mobility Spectrometry for Exobiology Flight Experiments (1996)
    In:  Other Sources
    Details
    Publication Date: 2019-07-18
    Description: Ion Mobility Spectrometry (IMS) can provide gas chromatography with sample identification independent of sample retention time, with minimal interface. Initial commercial methods of IMS however, did not possess sufficient analytical capabilities and presented operational parameters which were unsuitable for exobiology missions. Subsequent development of IMS technology, with the focus on exobiology analytical requirements and mission imposed operational limitations, has produced an IMS interfaced with a GC capable of fulfilling the analytical requirements of several exobiology missions. Future exobiology missions will require further development of the IMS, particularly in the areas of overall instrument miniaturization and complex sample identification. The evolution of the exobiology focused IMS will be presented up to the current prototype design, which is a component of several proposed exobiology instruments. Areas of future development will also be discussed.
    Keywords: Inorganic, Organic and Physical Chemistry
    Type: Fifth International Workshop on Ion Mobility Spectroscopy; Aug 19, 1996 - Aug 22, 1996; Jackson Hole, WY; United States
    Format: text
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    NASA TECHNICAL REPORTS
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