title: Synthesis of purine and pyrimidine bases and nucleosides under the cold plasma conditions (IX).
abstract: Living-matter precursors are obtained by the action of the high-frequency electrical discharges on a methane-ammonia-water mixture. Some purine and pyrimidine bases as well as nucleosides are detected and estimated quantitatively by column chromatography, one- and two-dimensional paper chromatography, paper chromatography with standard addition, colour tests as well as by optical density measurement within the UV region.
mesh_terms: D000641:Ammonia; D055598:Chemical Phenomena; D002621:Chemistry; D004560:Electricity; D008697:Methane; D011687:Purines / Q000138:chemical synthesis*; D011743:Pyrimidines / Q000138:chemical synthesis*; D014867:Water
chemical_list: D011687:Purines; D011743:Pyrimidines; D014867:Water; D000641:Ammonia; D008697:Methane