The study on aromatic hydrocarbons of crude oils and sediments which can provide useful organic geochemical information has made great progress in recent years. A methyl group at the quaternary carbon C-17was first sh...The study on aromatic hydrocarbons of crude oils and sediments which can provide useful organic geochemical information has made great progress in recent years. A methyl group at the quaternary carbon C-17was first shown by Seifert et al. The structural assignment of base peak m/z 231 species which has five展开更多
基金Project supported by the National Natural Science Foundation of China
文摘The study on aromatic hydrocarbons of crude oils and sediments which can provide useful organic geochemical information has made great progress in recent years. A methyl group at the quaternary carbon C-17was first shown by Seifert et al. The structural assignment of base peak m/z 231 species which has five