1 Schmitter, J. M.; Ignatiadis, I.; Dorbon, M.; Arpino, P.; Guiochon, G.; Toulhoat, H.; Hue, A., Identification of nitrogen bases in a coker gas oil and influence of catalytic hydrotreatment on their composition. Fuel 1984, 63, (4), 557-564. 2 Liu, C. J.; Zhang, G. L., Nonhydrocarbon Compounds in Petroleum and its productions. China Petrochemical Press.: Beijing, 1991. 先谢谢了啊