Identification of Complex Aromatic Molecules in Individual Interplanetary Dust Particles

DOI Web Site 被引用文献10件
  • Simon J. Clemett
    Department of Chemistry, Stanford University, Stanford, CA 94305—5080
  • Claude R. Maechling
    Department of Chemistry, Stanford University, Stanford, CA 94305—5080
  • Richard N. Zare
    Department of Chemistry, Stanford University, Stanford, CA 94305—5080
  • Patrick D. Swan
    McDonnell Center for the Space Sciences, Physics Department, Washington University, St. Louis, MO 63130—4899
  • Robert M. Walker
    McDonnell Center for the Space Sciences, Physics Department, Washington University, St. Louis, MO 63130—4899

抄録

<jats:p>Seventeen stratospherically collected particles—eight of which are classified as interplanetary dust particles (IDPs), seven of which are classified as probable terrestrial contaminants, and two of which have uncertain origins—were studied with a microprobe two-step laser mass spectrometer. Many polycyclic aromatic hydrocarbons (PAHs) and their alkylated derivatives were identified in two of the eight IDPs. The PAHs observed include a high-mass envelope not found in meteorites or terrestrial contaminants and prominent odd-mass peaks suggestive of nitrogen-containing functional groups attached to aromatic chromophores. In addition, the complexity of the IDP mass spectra has no precedence in previous studies of meteorite samples or their acid residues. Extensive checks were performed to demonstrate that the PAH signals are not caused by terrestrial contaminants.</jats:p>

収録刊行物

  • Science

    Science 262 (5134), 721-725, 1993-10-29

    American Association for the Advancement of Science (AAAS)

被引用文献 (10)*注記

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