Author/Authors :
Zong، نويسنده , , Ying and Zong، نويسنده , , Zhi-Min and Ding، نويسنده , , Ming-Jie and Zhou، نويسنده , , Lei and Huang، نويسنده , , Yao-Guo and Zheng، نويسنده , , Yu-Xuan and Jin، نويسنده , , Xin and Ma، نويسنده , , Yu-Miao and Wei، نويسنده , , Xian-Yong، نويسنده ,
Abstract :
A subbitumious coal from Erdos, Inner Mongolia, China, was extracted with isometric CS2/tetrahydrofuran mixed solvent. The extract was separated by silica-gel column chromatography. A series of long-chain normal alkanes, monoaromatic steranes, polycyclic arenes and heteroatom-containing species in the extract were concentrated to large extents. In addition, abiettriene and retene were separated in high purities.
Keywords :
Solvent extraction , GC/MS analysis , Erdos coal , Column chromatography
