水萃取法是脱除催化裂化轻汽油中碱性氮化物的经济有效的方法。
Water extraction is an economical and effective method that is applied to remove basic nitrogen compounds in FCC light gasoline.
采用乙醇提取法、水提取法及超临界CO_2萃取三种方法对虎杖样品进行抽提。
The efficient of three extraction techniques, alcohol extraction method, water extraction method and supercritical CO_2 extraction were studied.
方法：采用紫外分光光度法测定黄芩苷含量，比较水提法与液-液连续萃取法对黄芩苷提取率的差别。
Methods:Liquid-liquid continuous biphasic extraction was compared with the one of the traditional method of aqueous extraction and acidic deposition, determining the contents of total flavone by UV.
研究了石油醚萃取法、水溶解法、浓缩法分离迷迭香水溶性和脂溶性抗氧化剂，对抗氧化剂的得率及总酚含量的影响。
In the present study, the water-soluble and oil-soluble antioxidants of rosemary were separated with petroleum extraction, water-dissolving and concentration method.
川西稀土矿泥氯化后水浸液中，稀土含量较低，可借助环烷酸萃取法分离出稀土元素。
Rare earth elements in the aqueous leaching liquor of chlorinated mine mud from Sichuan West is of lower content, they can be separated by naphthenic acid extraction.
加入夹带剂乙醇后白花前胡甲素提取量增加，且超临界流体萃取法明显高于水煎煮和加热回流法。
As cosolvent alcohol was added, the amount of extraction of the praeruptorin A increased, and the amount of SFECO2 extraction was higher than those of decoction and heating reflux.
方法：采用60%乙醇提取、石油醚去除脂溶性成分、水饱和正丁醇萃取法提取六月青皂苷。
Methods: The LYQ was extracted with the 60% ethanol, liposoluble impurity was removed by petroleum ether, then extracted by water-saturated butanol.
方法：采用60%乙醇提取、石油醚去除脂溶性成分、水饱和正丁醇萃取法提取六月青皂苷。
Methods: The LYQ was extracted with the 60% ethanol, liposoluble impurity was removed by petroleum ether, then extracted by water-saturated butanol.
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