查询词典 ethyl acetate

And then we found that ytterbium trifluoromethethanesulfonate is a powerful catalyst for the reaction of amine and ethyl acetate.

然后研究了三氟甲磺酸镱催化的胺和乙酸乙酯的反应，从而合成了乙酰苯胺类化合物。

The results also indicated a low production of acetic acid, acetoin and ethyl acetate, and high amounts of amyl alcohols in all of the ciders.

结果在所有萍果汁也表明了乙酸、乙醛和乙酸乙酯的低产量和大量产生的戊基乙醇。

The oil was extracted from ascidian with supercritical fluid CO 2 and ethyl acetate , and the antioxidant activity of the oil was studies with OSI.

分别用乙酸乙酯和超临界CO2提取海鞘中的油脂，并对它们的氧化稳定性进行研究。

Two kinds of oil were extracted from Styela clava and Ciona intestinalis Linnaeus by supercritical fluid CO2(SCF-CO2) and ethyl acetate. The results show that the two kinds of oil extracted from ascidian all contain high levels of plural unsaturated fatty acid, which are 89.84%(SCF-CO2) and 75.78% from Styela clava, 69.77%(SCF-CO2) and 61.11% from Ciona intestinalis Linnaeus respectively. The antioxidant activities of natural components extracted from Salvia miltiorrhiza were investigated on the oil extracted from ascidian.

分别用乙酸乙酯和超临界CO2提取柄海鞘和玻璃海鞘中的油脂，得到了多不饱和脂肪酸含量很高的海鞘油脂，即柄海鞘含有89.84%（超临界CO2提取）和75.78%的多不饱和脂肪酸，玻璃海鞘含有69.77%（超临界CO2提取）和61.11%的多不饱和脂肪酸。

Methods Using Vibrio eoralliilyticus, Vibrio tubiashii, Vibrio parahaemolyticus and Vibrio earehariae as the tested bacteria, the inhibition zone and the minimal inhibitory concentration were measured. Results The extracts, extracted with ethyl acetate from the leaves of Nerium indicum Mill., Mangifera indica Linn., Melia azedarach L.

采用纸片法和试管法，以溶珊瑚弧菌、塔氏弧菌、副溶血弧菌、鲨鱼弧菌为供试菌株，测定中草药不同极性萃取部分的抑菌圈和最小抑菌浓度。

Methods Using Vibrio coralliilyticus, Vibrio tubiashii, Vibrio parahaemolyticus and Vibrio carchariae as the tested bacteria, the inhibition zone and the minimal inhibitory concentrationwere measured. Results The extracts, extracted with ethyl acetate from the leaves of Nerium indicum Mill., Mangifera indica Linn., Melia azedarach L.

采用纸片法和试管法，以溶珊瑚弧菌、塔氏弧菌、副溶血弧菌、鲨鱼弧菌为供试菌株，测定中草药不同极性萃取部分的抑菌圈和最小抑菌浓度。

The reaction was carried at 50 ℃ for 5 hours, ethanol from the reaction was removed by distilling the azeotrope of ethyl acetate and ethanol to complete the reaction.

反应在50 ℃下进行5 h，以过量的乙酸乙酯与生成的乙醇共沸除掉乙醇，使反应进行完全。

Outlined solvents like, butanone ethyl acetate, acetone, methybenzene ethanol are quick drying solvents.

以上列举的溶剂中象醋酸乙酯、丁酮、丙酮、甲苯、乙醇都属快干溶剂。

S. chirata ethanol-extracts was extracted with petrolelum ether, ethyl acetate and butanol, respectively.

方法］分别用石油醚、乙酸乙酯和正丁醇萃取印度獐芽菜乙醇浸膏，所得产物用硅胶柱、Sephadex LH-20柱洗脱后进行结构鉴定。

METHODS:The serum was added with VC as antioxidant and treated with ethyl acetate to extract rifampiein. The method employed C18 column,and CH3OH-0.025mol/L NaA c(adjust to pH 7.0 with HAc)as mobile phase,chlordiazepoxide as intra-standard,a nd the UV detection wave length was at 334nm.

血清加抗氧剂维生素C后，用乙酸乙酯提取浓集进样，采用C18柱(150×3.9mm 4μ)，以甲醇-0.025mol/L NaAc(用HAc调到pH 7.0)(62∶40)为流动相，氯氮( HT6"，5"K〗艹)/为内标，紫外检测波长为334nm。

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。