常見例句雙語例句METHODS: Alcoholic extraction, silica gel, ODS column chromatography and recrystallization were used.方法： 採用工業(yè)酒精提取、 膠柱層析、ds柱層析和重結晶等方法。Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.分別採用矽膠柱色譜法和溶劑抽提，分離優(yōu)質塑料拋光膏中的油脂和磨料部分。The method of extracting the auxin in seaweeds with organic solvent, separating and purifying the auxin by ether extraction method and column chromatography has been established.確立了以有機溶劑提取海藻中的生長素，以乙醚萃取法和柱層析法對生長素進行分離純化的方法。 返回 column chromatography