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Table 2.

Detection of prebiotic molecules in experiments with treatment of formaldehyde by electric discharge in the presence of nitrogen and by laser-induced dielectric breakdown plasma induced in a nitrogen atmosphere upon formaldehyde solution in water in the presence of montmorillonite clay, titania (TiO2), and basaltic rock.

System Temp Catalyst Biomolecules content (ppmv)
Adenine Guanine Uracil Cytosine Glycine
Discharge 650 K No catalyst 10 3 3 3 200
LIDB 4500 K Montmorillonite 15 1 0.5 0.5 30
LIDB 4500 K TiO2 2 2 0.1 0.4 20
LIDB 4500 K Basalt 700 3 40 12 50

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