查询词典 diethyl ether

Certain ratio of diethyl ether-hexane was used to wash off the impurity during the clarification of Extrelut and Florisil.

在Extrelut、弗罗里硅土两次柱净化过程中，确定了用一定比例的乙醚-正己烷预淋洗，洗去了大量杂质。

Crude fat of the sample powder was determined gravimetrically after extraction with diethyl ether.

用乙醚从粉末中提取出粗脂肪，这些粗脂肪用比重法测定。

Basic drugs, lidocaine, benghexolum, chlorpromazine, diazepam, clozapine, internal standard of SKF525A(all of 5μg), estazdam and alprazolam (all of 10μg), are extracted from superfatted necrogenic tissues with mixture reagents of ethyl acetate and diethyl ether under basic condition, and determined by gas chromatography with nitrogenphosphorus detector.

在高度腐败及脂肪较多的脏器中加入碱性药物利多卡因、安坦、氯丙嗪、安定、氯氮平及内标物SKF_525A各5.0μg，舒乐安定、佳静安定各10.0μg，在碱性条件下用乙酸乙酯与乙醚混合液提取，经GC/NPD分析。

The reaction was run in aqueous diethyl ether at 30℃ for 24h under the catalysis of bakers' yeast, which preincubated for 2h in the presence of phenacyl chloride.

实验结果表明，乙醚为适宜反应介质，适宜pH为中性；反应初始水含量和初始底物浓度分别以w(H2O)=30g/L、c=5 mmol/L为佳。

Results show that samples are extracted with diethyl ether for 6 h and then saponified for 3 h, when pH value is 7, the extraction rate is between 81.8％ and 88.0%, the recovery rate of the method is between 75.12％ and 84.95％, determination limit is 1.07×10-3 mg/kg.

结果显示：提取溶剂选用乙醚，提取时间6 h，皂化时间3h，在蒸馏液pH 7条件下，异辛醇萃取率为81.8％～88.0％，方法加标回收率为75.12％～84.95％，检出限为1.07×10-3 mg/kg。

Methods The drying soybean products were triturated. The powder samples were defated by the diethyl ether for 5 hours, and returned by the 80% methyl alcohol solutions with the liquid-solid ratio of 25:1 for 5 hours. The content of the total isoflavone in filtrate was determined by ultraviolet spectrophotometry.

将烘干的豆制品研成粉末，取粉末样品置于索氏抽提器中，用乙醚脱脂5h后，用80%的甲醇溶液以25：1的液固比热回流5h，用紫外分光光度法测定滤液总异黄酮含量。

It can dissolve in water alcohol isopropanlol or chloroform not in acetone or diethyl ether polymers having molecular weight under30000 can excreted by human kidney.

乙醇 。异丙醇或氯仿，不溶于丙酮，二乙醚，分子量在30000以下的聚合物能通过人的肾脏排泄。

In this study we sought to determine whether exposure to theanesthetics diethyl ether and isoflurane influences the activityof hepatic cytochrome P450 2E1 and P450 reductases in the rat.

通过这项研究，我们试图去确定用乙醚或异氟醚麻醉是否影响肝脏细胞色素酶 P450 2E1和 P450还原酶的活性。

Thus,the effects of the trace of impurities such as water,methanol and diethyl ether in the feedstocks on the stability of catalytic properties and deactivation of the chloroaluminate ionic liquid were studied in continuous alkylation.

在连续操作的烷基化实验装置上考察了烷基化原料中的微量水、甲醇和乙醚对离子液体寿命和催化性能的影响。

The virus was not sensitive to chloroform, diethyl ether and trypsin and possessed acid-resistant and heat-resistant features.

病毒核酸类型鉴定为RNA病毒。生物学和理化学特性鉴定结果表明，GD株为强毒DHV。

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。