乙基水杨酰胺；
In the imaging field, polyphenol 1-ethoxyl ethyl ether compounds, as dissolution inhibitors, can be applied to the thermo-sensitive CTP compositions.
在成像领域中，可应用多酚乙烯基醚类化合物作为阻溶促溶剂，应用于热敏CTP感热成像配方。
Conclusion: the new compound was identified as paeoniflorin-4-ethyl ether, which may be an artifact produced during extraction proved by simulate experiment.
结论：新化合物结构鉴定为芍药苷4乙基醚，并通过模拟实验证明可能为提取过程中产生的人工产物。
The results showed that using solvent ethyl diol dimethyl ether, biflavone content in crude extractings is higher than that obtained by using other solvents.
结果表明：乙二醇二甲醚为提取剂，粗产品中双黄酮类成分较高；
The precipitate was vacuum dehydrated, and then phospholipids were extracted with ethyl ether. having 74. 90% of the phospholipids; its productivity is 30. 87%.
菜油脚经离心分离出中性油，再通过真空脱水，乙醚提取制得某油磷脂，其磷脂含量达74．90％，产率为30．87％。
Commercially available sodium lauryl sulfate was purified by such methods as recrystallization of water, recrystallization of ethanol and extraction of ethyl ether.
介绍了用两种不同的方法制备十二烷基硫酸钠，并对制备出的产物的性能与分析纯的标样进行了比较。
Ten of them were identified. They are ethylene, propylene, isobutane, cyclobutane, three isomeric butenes, methyl ethyl ether, ethyl isopropyl ether, and ethyl acetate.
它们是乙烯，丙烯，异丁烷，环丁烷，丁烯类化合物三个，甲基乙基醚，乙基异丙基醚，乙酸乙酯。
The constituents from pickle brine extracted with ethyl ether and identified by GC MS. In the result, 8 acids, 4 alcohol, 2 nitriles, 2benzines and 1 ester were identified.
首先，对雪里蕻腌菜卤汁的乙醚萃取浓缩液组分进行了鉴定，结果发现有机酸组分8个，醇类组分4个，腈类组分2个，酯类组分1个，芳香烃2个。
Various factors that affect the condensation are discussed. The results show that the yield of 4-Nitrophenyl Benzyl Ether is 84.9 %, and the yield of 2,4-Dinitrophenyl Ethyl Ether is 72.3 %.
考察了不同反应条件下的反应结果，结果表明，在最佳条件下对-硝基苯基苄基醚和2 ，4-二硝基苯基乙基醚的收率分别为84.9%和72 .3 %。
Ethanol and tert-amyl alcohol were employed to synthesize tert-amyl ethyl ether in the liquid phase at atmospheric pressure. The strong acid cation exchange resin, NKC-29, was used as catalyst.
用国产NKC-29型强酸性阳离子交换树脂为催化剂，在常压液相条件下用乙醇和叔戊醇为原料合成了乙基叔戊基醚。
The kinetics of thiol-ene reaction is studied by Fourier Transform Infrared when benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, benzophenone and ITX were used as photosensitizer.
为研究硫醇烯光固化组成物的反应机理，选用安息香双甲醚、安息香乙醚、安息香正丁醚、二苯甲酮和噻吨酮为光敏剂，用红外光谱法研究了硫醇烯的光化学反应动力学。
Ethyl tert butyl ether (ETBE) is a good additive for gasoline with high octane number.
乙基叔丁基醚(etbe)是一种性能优良的高辛烷值汽油调和组分。
Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：（1）以硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
Ethyl cellulose (EC) is a thermoplastic nonionic cellulose ether, soluble in various organic solvents, at low temperatures can still retaining the with adhesive, filling and film good flexibility.
乙基纤维素(EC)是一种热塑性的非离子型纤维素醚，可溶于多种有机溶剂，在低温下仍能保持良好的挠曲性。
The compositions of grease were eluted with petroleum ether, benzene, chloroform, ethyl acetate, acetone, ethanol and characterized by means of IR and NMR spectroscopy.
油脂部分依次以石油醚、苯、氯仿、乙酸乙酯、丙酮、乙醇为淋洗剂进行洗脱，利用红外光谱、核磁共振光谱法对所分离组分进行了结构鉴定。
Ethyl tert-butyl ether (ETBE) is another better gasoline additive than MTBE.
乙基叔丁基醚(etbe)是较甲基叔丁基醚(MTBE)更为优良的汽油添加剂。
ConclusionPetroleum ether, Ethyl acetate parts of Rhizoma Cyperi are the effective par...
结论香附的石油醚、乙酸乙酯部位是治疗痛经的有效部位。
Various fractions of tannins with different polarities and relatively narrow molecular weight distribution were obtained by extractions using ether and ethyl acetate sequently .
通过乙醚和乙酸乙酯萃取可得到极性不同的组分。分析表明，各级分的分子量分布范围不同，且相对较窄。
Ethyl tert butyl ether (ETBE) is a good additive for gasoline with high octane number. Some typical production technologies overseas and domestic research situations of ETBE synthesis are introduced.
乙基叔丁基醚(ETBE)是一种性能优良的高辛烷值汽油调和组分。
Method the extracts of petroleum ether, ether, ethyl acetate, ethanol and hot water from the whole plant were used to determine the in vitro miti-oxidant and antibacterial activity.
方法对楮头红的石油醚、乙醚、乙酸乙酯、乙醇和热水的粗提取物分别进行体外抗氧化和抑菌试验。
Vapor-liquid equilibrium data of ethyl acetate-isopropyl ether and ethyl acetate-tetrahydrofuran binary systems were measured at atmospheric pressure 101.
用汽液平衡釜测定了乙酸乙酯-异丙醚和乙酸乙酯-四氢呋喃二组分物系的汽液平衡数据。
Volatility chemical constituents of the extracts of mulberry (Moms atropurpurea R. ) by petroleum ether and ethyl acetate were analyzed by GC-MS.
对广东桑桑椹石油醚和乙酸乙酯提取物中的化学成分进行GC-MS分析。
The ethanol extract from the twig bark powder of Periploca sepium was suspended in water and successively treated with petroleum ether, ethyl acetate and n-butanol.
将杠柳枝皮粉末的乙醇提取物悬浮于水后，依次用石油醚、乙酸乙酯和正丁醇萃取。
Then gradient extraction was carried out with petroleum ether and ethyl acetate, and the activity of extracted substance with ethyl acetate was better than others.
再用石油醚、乙酸乙酯进行梯度提取，确定乙酸乙酯提取物的活性更优，测得总黄酮含量为27.73%。
The petroleum ether extract gave 100% mortality in shortest time followed by ethyl acetate extract.
从作用时间上看，石油醚组分作用时间最短，乙酸乙酯组分次之；
ResultsPetroleum ether extract and ethyl acetate extract both had some anticancer effects in vitro.
结果青天葵石油醚和醋酸乙酯部位具有一定的体外抗肿瘤作用。
In four extracts from PMEW treated with methyl alcohol and water, petroleum ether, chloroform and ethyl acetate, extract rate of methyl alcohol and water was the highest.
通过对PMEW萃取分离发现，在甲醇水、氯仿、石油醚和乙酸乙酯四种萃取物中仍以甲醇水的萃取率最高。
Methods Artemisinin is extracted with petroleum ether and pass column of silica gel and gradient elution with ethyl acetate, then it is tracked with TLC and detected with UV-VIS.
方法青蒿经石油醚提取浓缩，浸膏经过硅胶柱，用不同配比的乙酸乙酯洗脱，用tLC法跟踪，UV法检测。
Methods: (1) to separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
The chemical constituents of petroleum ether fraction, chloroform fraction and ethyl acetate fraction of Flemingia philippinensis Merr. et Rolfe. were analysed by modern chromatography.
应用现代色谱技术和方法研究了千斤拔的石油醚部位、氯仿部位、乙酸乙酯部位的了化学成分。
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