查询词典 ethyl acetate

This paper discussed antioxidation of chloroform extract and ethyl acetate extract of plum to lard and peanut oil.

研究了青梅氯仿提取物和乙酸乙酯提取物对猪油和花生油的抗氧化性能。

Main business scope: polyformaldehyde methylal methanol sodium nitrite sodium sulfide protopine xylene glacial acetic acid soda ash Ethyl acetate ion-exchange membrane caustic soda Chloromethane AEO-9 polyethylene glycol and other major raw materials and products.

多聚甲醛甲醇甲缩醛亚硝酸钠硫化碱片碱二甲苯纯碱冰醋酸醋酸乙酯离子膜烧碱 AEO-9 氯甲烷聚乙二醇等主要原料和产品。

The graft copolymerization of butyl acrylateonto chloroprene rubber is carried out in methylbenzene-ethyl acetate solvent by using a new type of efficient initiator.

以一种新型的高效引发剂，在甲苯-乙酸乙酯混合溶剂中进行氯丁橡胶与丙烯酸丁酯的接枝共聚反应。

Also the molecular structure and functional effects of this active component were studied in detail. 1 Extraction, separation, purification and structural identification of the functional component in Chufa After initial handling of waste slurry to solid powder, ethanol was used to lixiviate it followed by the extraction with petroleum ether,ethyl acetate,n-butyl alcohol one by one, the polarity of three organic reagents being changed from low to high.

荸荠功能因子的提取、分离、纯化及结构鉴定以马蹄粉厂产粉废浆为原料，经过实验室初处理成固态原料粉后，用乙醇浸提，再将浸提物以水悬浮，依次通过极性从小到大的石油醚、乙酸乙酯、正丁醇三种有机溶剂两相萃取分部，并以金黄葡萄球菌、枯草芽孢杆菌和致病大肠杆菌为指示菌，检测上述各部分提取物的功能效果。

OBJECTIVE: To observe the antagonism effects of both alcohol and ethyl acetate extracts, monomer CA-1201 three components from Chinese herb Cissus assamica on endothelin-1 (ET-1) biological responses in vivo and in vitro.

目的：观察红背丝绸2种提取物和单体(CA-1201)对内皮素-1(endothelin-1，ET-1)生物效应的拮抗作用。

The results showed that the condign technical conditions for preparing the composite were 30℃ for the reaction temperature, 0.8/1 for the molar ratio of ethyl acetate and SiO2, and 6.5% for the concentration of water glass.

结果表明，制备SiO2/NR复合材料较适宜的复合工艺为院水玻璃与乙酸乙酯反应温度30益，乙酸乙酯和水玻璃溶液中所含SiO2的摩尔比n为0.8∶1，水玻璃浓度为6.5%。

Acetone extract of E.hirta may be toxic to spores of C.musaram. Ethyl acetate extrate of E.hirta may have inhibiting effects on conidium germination and mycelium growth of C.musaram.

大飞扬的丙酮提取物对芭蕉炭疽菌孢子可能具有毒害作用，乙酸乙酯提取物使芭蕉炭疽菌和链格孢菌的孢子芽管生长不正常。

Acetone extractive of Euphorbia hirta may be have viricidal effect on spores of C. higginsianum. Ethyl acetate extractive of E. hirta may be have inhibited effects on conidium germination or growth of hypha of C. higginsianum.

大飞扬草的丙酮提取物对炭疽菌孢子可能具有毒害作用，乙酸乙酯提取物使炭疽菌和链格孢菌孢子芽管生长不正常，且对其菌丝生长具有抑制作用。

METHODSThe auricle inflammation models were made with xylene and croton oil to investigate the effects of Purslane extracton auricel swelling in mice.The acetic acid twisting body test and the hotplate test were used for the study of analgesic effects of the ethyl acetate extract in mice.

方法］采用二甲苯及巴豆油致小鼠耳廓炎症的方法，观察马齿苋提取物对小鼠耳廓肿胀度的影响；采用扭体法和热板法，观察对小鼠镇痛作用的影响。

The velocities of reaction of ethyl acetate with sodium hydroxide in dioxane- water mixture have been determined in seven different temperatures(5°,10°, 15°,20°,25°,30°and 35°).

作者在7具不同温度(5°，10°，15°，20°，25°，30°，35°)下，研究了乙酸乙酯和氢氧化钠在二氧六圜和水的混合溶剂中的反应速度。

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。