Abstract
Electric discharge experiments have been performed in a plausible primitive earth atmosphere consisting of methane, nitrogen, and water over an aqueous phase of an ammonia-ammonium buffer solution. In some experiments, ions of metal elements, calcium, magnesium, zinc, iron and molybdenum were introduced. Gas phase products and amino acids in the liquid phase were analyzed by gas chromatography. With trace metal ions, less organic compounds in the gas phase and larger amounts of amino acids were obtained than without them. The results have shown the possible importance of trace elements in chemical evolution and the origin of life on the earth.
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Kobayashi, K., Ponnamperuma, C. Trace elements in chemical evolution. Origins Life Evol Biosphere 16, 57–67 (1985). https://doi.org/10.1007/BF01808049
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DOI: https://doi.org/10.1007/BF01808049