Titan Aerosol Analogues: Analysis of the Nonvolatile Tholins

Details Titan Aerosol Analogues: Analysis of the Nonvolatile Tholins Titan Aerosol Analogues: Analysis of the Nonvolatile Tholins

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003asbio...3..719s&link_type=abstract

Astrobiology, Volume 3, Issue 4, pp. 719-726.

Biology

14

Titan, Saturn, Tholin, Prebiotic, Mass Spectrometry

Scientific paper

Laboratory experiments that produced tholins in a simulated Titan atmosphere were conducted. We report the first systematic analyses of these compounds using Fourier-transform ion cyclotron resonance mass spectrometry. The findings suggest surprising simplicity and nonrandomness in the mass distribution and regularity in species clusters. The degree of unsaturation generally increased with increasing molecular weight in a predictable fashion, and nitrogen is proposed as the dominant carrier of unsaturation. In detected compounds with a general formula of CxHyNz, the carbon to nitrogen ratio (x/z) varied only slightly within a narrow limit, and decreased with increasing molecular weights. These compounds are of potential prebiotic interest since they sediment to the surface of Titan, and would dissolve readily in transient aqueous pools that might be generated from time to time by impacts and volcanic

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