Nitrogen Deposition Via N^+ Implantation:Implications for Primordial Amino Acids Synthesis Revisited  

作　　者：王伟 石怀彬 王相勤 余增亮 

机构地区：[1]Key Lab of Ion Beam Bioengineering,Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China

出　　处：《Plasma Science and Technology》2007年第2期252-256,共5页等离子体科学和技术（英文版）

基　　金：the National Natural Science Foundation of China(No.29772033)

摘　　要：In this paper amino acids synthesis in aqueous solution induced by ion implantation, which was possibly ubiquitous on primitive Earth, is investigated. As a discharge using a graphite rod as the anode under a nitrogen atmosphere was performed against ammonia water, it was found that three kinds of amino acids were produced. They were glycine, serine and alanine. By introducing ion implantation into the carboxylate solution, ammonia and amino acids were also formed via nitrogen deposition/fixation. Another isotopic experiment showed that both OH and H radicals played a crucial role in the arc-discharge-promoted reactions in aqueous solution Therefore, we believe that the impact of ions in the original atmospheric conditions might have functioned as a promoter in the chemical origin and evolution of life.In this paper amino acids synthesis in aqueous solution induced by ion implantation, which was possibly ubiquitous on primitive Earth, is investigated. As a discharge using a graphite rod as the anode under a nitrogen atmosphere was performed against ammonia water, it was found that three kinds of amino acids were produced. They were glycine, serine and alanine. By introducing ion implantation into the carboxylate solution, ammonia and amino acids were also formed via nitrogen deposition/fixation. Another isotopic experiment showed that both OH and H radicals played a crucial role in the arc-discharge-promoted reactions in aqueous solution Therefore, we believe that the impact of ions in the original atmospheric conditions might have functioned as a promoter in the chemical origin and evolution of life.

关 键 词：amino acids ion implantation nitrogen deposition 

分 类 号：O621[理学—有机化学]