This paper deals with the way of purifying highly purity hyaluronic acid from ox eye by fractionation and organic solvent precipitation.
本文报道采用分级分离并结合有机溶剂沉淀法，从牛眼中纯化出高纯度透明质酸，较其他方法简便，易形成规模。
The fractionation separation of fructose monopalmitate and fructose dipalmitate by extraction with mixed organic solvent were performed.
研究了混合溶剂法分级分离棕榈酸果糖单酯和棕榈酸果糖双酯的工艺。
Solvent extraction experiment has been done, in which the feedstock of xinjiang vacuum residue was mixed with RFCC slurry by the method of Supercritical Fluid extraction and Fractionation (SFEF).
以新疆减压渣油中掺入不同比例的重油催化裂化油浆为原料，在超临界流体萃取分馏装置上，进行丁烷脱沥青试验。
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