乙醚

Chondrus ocellatus was extracted by methanol, ethanol, ethyl ether, ethyl acetate, petroleum ether and acetone, respectively.

采用甲醇、乙醇、乙醚、乙酸乙酯、石油醚、丙酮6种溶剂分别对角叉菜进行冷浸提取。

Milky urine color should be excluded: 1, chyluria: ethyl ether can be sent to do urine tests, such as positive can be diagnosed as chyluria.

小便颜色乳白应排除：1、乳糜尿：可送小便做乙醚试验，如阳性即可诊断为乳糜尿。

The anti-microbial activity of active materials against valsa mail,fusarium oxysporum,coniothyrium diplodieua and aspergillus nidulans were measured in vitro.the results showed that active materials extracted using acetone,aether and petroleum ether presented fungistasis to different extent on the four pathogenic fungi and had the best effect to coniothyrium diplodieua.active material extracted using ethanol presented certain anti-microbial effect to fusarium oxysporum.the results also showed there were anti-microbial active material in the leaves of cichorium intybus and founded a base on the research and application.

然后以提取液为供试药剂，对苹果腐烂病菌、棉花枯萎病菌、葡萄白腐病菌、构巢曲霉病菌4种植物病原真菌进行离体活性测定。结果表明：丙酮、乙醚、石油醚的提取液对4种病菌均有不同程度的抑制作用，其中对葡萄白腐病菌抑制效果最好；乙醇的提取液对枯萎病菌具有一定的抑制作用。表明菊苣叶中存在抑菌活性成分，补充了菊苣抑菌活性的研究内容，为该种植物抑菌活性成分的研究和应用奠定基础。

With ethyl cinnamic as substrate of the AD reaction, the recovered ligand 1 and 2 was reused in 'BuOH-H2O (1:1) system.

产物 的光学纯度为98%，产率为39%。反应结束后，可以通过加少量乙醚，沉淀回收配体。

Different concentration methanol-, acetone-, ether-, and chloroform extracts of Corallina pilulifera were used to study their growth inhibitory effects on red tide microalgae Heterosigma akashiwo.

研究了不同浓度的小珊瑚藻组织4种不同极性有机溶剂（甲醇、丙酮、乙醚、氯仿）提取物对赤潮异弯藻的生长抑制作用。

A sample-pretreated method of ether-extraction-precolumn-derivation was established, and the chromatographic conditions, which was used for determinating the derivant of extracted UDCA, were decided to be Hypersil C_(18) column(250×4.6mm, 10μm), acetonitrile-methol-0.005mol·L~(-1) phosphoric buffer-triethylamine(50:27:42:0.25, adjusted to pH3.0±0.1 by phosphoric acid) as mobile phase with detective UV wavelength at 247nm and column temperature at 35℃.

建立了乙醚提取-柱前衍生化血浆样品预处理方法，采用Hypersil C_(18)柱(250×4.6mm，10μm)，乙腈-甲醇-0.005mol·L~(-1)NaH_2PO_4缓冲液-三乙胺(50：27：42：0.25，磷酸调节pH3.0±0.1)为流动相的HPLC法，以溴苯乙酮为衍生化试剂，在247nm处测定家兔血浆中熊去氧胆酸衍生化产物。

More diethyl ether (100 mL) was added, and the slurry was stirred for 30 min at room temperature.

更多乙醚（ 100毫升）加入，和泥浆是搅拌30分钟在室温下。

Reflux gently for 6 h ± 30 min. Allow sufficient time for the diethyl ether to cool.

缓慢回流6 h ± 30 min。然后让乙醚完全冷却。

Samples from different parts of 6 pigs was soaked in saline and grinded,then extracted with diethyl ether.

样品取自添加瘦肉增长素饲料喂养的 6头猪的不同部位，经生理盐水浸泡后，研磨成乳糜状，用乙醚提取。

Secondly, 2-trichloroacetylpyrrole were synthesized in the diethyl ether anhydrous at room temperature.

以无水乙醚为溶剂，摩尔比为1：1的N-烷基吡咯和三氯乙酰氯，在常温下进行反应，得到2-三氯乙酰基吡咯。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。