resin and asphaltene components were extracted from gudao and liaohe heavy crude oil by adsorption chromatography method.
采用吸附色谱法分离孤岛和辽河稠油,得到了胶质和沥青质组分。
the antibiotic-shengkang 1 has been extracted and separated from fermented liquid by the iron exchange chromatography, adsorption chromatography and solvent extraction technique.