1. Ozerova N A. New mercury ore belt in Western Europe (in Russian). Geol Ore Deposits, 1981, 23: 49–56
2. Wilhelm S M, Bloom N. Mercury in petroleum. Fuel Proc Tech, 2000, 63: 1–27
3. Shafawi A, Ebdon L, Foulkes M, et al. Determination of total mercury in hydrocarbons and natural gas condensate by atomic fluorescence spectrometry. Analyst, 1999, 124: 185–189
4. Leeper J E. Mercury—LNG’s problem. Hydrocarbon Proc, 1980, 59: 237–240
5. Chen J F, Tuo J C, Li C Y, et al. Hg origin in natural gas from Liaohe Depression and geochemical significance (in Chinese). Petrol Explor Dev, 2000, 27: 23–24