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  • Gas chromatography  (1)
  • LUNAR AND PLANETARY EXPLORATION  (1)
  • Data acquisition
  • 1980-1984  (2)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Fast analysis by gas chromatography (1982)
    Springer
    Chromatographia 15 (1982), S. 125-132 
    Details
    ISSN: 1612-1112
    Keywords: Capillary columns ; Fast analysis ; Gas chromatography ; Instrumental effects ; Optimization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The efficiency of fast GC columns depends largely on the quality of the chromatograph. A theoretical and experimental study shows the relative importance of the various phenomena involved and permits the optimization of a GC System. Extremely good performances, exceeding 2,500 plates per second have been routinely obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02290445
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Unknown
    Lyman-alpha observations in the vicinity of Saturn with Copernicus (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: For the first time, high-resolution Ly-alpha observations of the Saturn vicinity were completed with the Princeton spectrometer on board the Copernicus satellite. They showed that near a minimum solar activity the emissions related to several sources are 250 + or - 50 rayleighs for the interplanetary medium in a near-downwind direction, less than 100 rayleighs for the rings, 200 + or - 100 rayleighs for a torus linked to the Titan orbit, and 1400 + or - 450 rayleighs for the disk of Saturn. These results induce some constraints through the corresponding theoretical evaluations: the B ring as the primary source of the atoms for the ring emissions; an efficient production mechanism for hydrogen atoms in the Titan torus; and a slightly larger eddy diffusion coefficient in the Saturn atmosphere than in the Jupiter atmosphere near solar minimum.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Astrophysical Journal; vol. 242
    Format: text
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    NASA TECHNICAL REPORTS
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