萃取的

Methods Silica gel column chromatography and PTLC were used to separate and purify the compounds from the petroleum ether soluble fraction of ethanol extract.

方法用硅胶柱色谱和制备薄层等方法从乙醇提取物的石油醚萃取部位分离化合物，通过波谱方法鉴定其结构。

AIM To investigate the therapeutic effect of ethyl acetate extract from Pongamia pinnata roots on ethanol-induced gastric lesions.

目的研究水黄皮根乙酸乙酯萃取物对乙醇致胃黏膜损伤的治疗作用。

A method to divide the extractant and metal organic complex into functional groups is proposed.

在萃取过程中，涉及到多组分的混合稀土，其热力学计算目前还有困难。

The results showed that the proper organic solvent and extractant were sulfonated kerosene and trialkyl phosphine oxide.

结果表明，较合适的溶剂和萃取剂分别为磺化煤油和三烷基氧膦。

Second, extractant N902 is utilized to extract copper in the leaching solution and has good selectivity to copper.

结果表明，萃取剂N902对铜具有较好的选择性。

Finally, the separation conditions using other compounds, Alamine 336 and TBP, as extractant were also discussed.

同时，还对三烷基胺、磷酸三丁酯等萃取剂分离乙醇酸和乙醛酸的特性进行了讨论。

Microwave extraction of orris root ,using a reconstructed home microwave oven as main equipment,is studied in this paper.

本研究使用经改造的家用微波炉作为主要设备，对微波萃取鸢尾香根做了L9( 34 )正交实验。

The theory and application of ultrasound extraction technology were reviewed in this article.

对超声波在萃取分离中的应用进行了综述。

It is important to study the influence of salt on vaporliquid equilibrium for the extractive distillation with addition of salt.

研究盐对气液平衡的影响，对开发加盐萃取精馏技术非常重要。

It is important to study the influence of salt on vapor - liquid equilibrium for the extractive distillation with addition of salt.

研究盐对气液平衡的影响，对开发加盐萃取精馏技术非常重要。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。