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absolute ethyl ether 无水乙醚
Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent. 采用无水乙醇、乙醚、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。
Isobornyl ethyl ether was prepared by ethoxylation of camphene with absolute ethanol in the presence of DCP heat-resistant ion exchange resin. 工业莰烯在耐高温离子交换树脂DCP催化作用下与无水乙醇反应生成了异龙脑基乙醚。
Furfuryl ethyl ether is an important component responsible for the stale flavor of beer. 糠基乙醚是啤酒产生老化味的一种重要成分。
Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate. 鉴于传统方法存在以上缺点,采用乙酰氯代替乙酸作为原料,不使用任何催化剂,不加热,常温反应来合成乙酸乙酯。
Conclusion There is the best ratio different matching of and Frankincense Myrrh resisting gastric ulcer in mice induced by absolute ethyl alcohol. 结论乳香没药配伍抗无水乙醇致胃溃疡作用存在最佳配比。
The volatile oil was extracted from the Fructus rhodomyrti using ethyl ether by supersonic. 摘要釆用乙醚超声波萃取法提取广东稔子中的挥发油。
Objective To observe the effect of different matching of Frankincense and Myrrh on resisting gastric ulcer in mice induced by absolute ethyl alcohol. 摘要目的观察乳香没药药对不同配比对无水乙醇致小鼠胃溃疡的保护作用。
The BALF were collected by narcotizing the rats with ethyl ether in 12 week, to examine the content of ALT, AST, ALP and LDH in BALF. 于12周后采集肺泡灌洗液(BALF)检测ALT、AST、ALP、LDH水平。
Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed. 莰烯在阳离子交换树脂固定床催化下与乙醇反应生成异菠基乙醚。
In the experiment, ethyl propionate was synthesized by reaction of propionic acid with absolute ethyl alcohol in the presence of p-Toluene sulfonic acid. 以丙酸和无水乙醇为原料,对甲苯磺酸作催化剂合成了丙酸乙酯。
In the imaging field,polyphenol 1-ethoxyl ethyl ether compounds,as dissolution inhibitors,can be applied to the thermo-sensitive CTP composition s. 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。
The crude low isotactic polypropylene (LIPP) was fractionated by subsequent extractions with boiling ethyl ether, n - hexane, and n - heptane. 用溶剂分级法对低等规聚丙烯(LIPP)进行了分级,测定了各级分的含量、分子量及其分布、特性粘数、分子链规整度及序列分布等分子性质。
This paper introduced the contribution of 2-furfuryl ethyl ether to the stale flavor of beer and the formation mechanism for 2-furfuryl ethyl ether. 本文介绍了2-糠基乙醚对啤酒老化味的作用及形成机理。
Sodium Iron Chlorophyllin Dark green powder or crystal.Easily soluble in water, slightly soluble in alcohol and chloroform.Insoluble in ethyl ether. 产品说明叶绿素铁钠盐本品是以天然植物为原料;经过精制加工提纯所得到的天然叶绿素的衍生物.;本品为墨绿色结晶或粉末;易溶于水;微溶于乙醇;氯仿;不溶于乙醚;水溶液透明;无沉淀。
The reaction order and mechanism were different with both benzoin ethyl ether and benzophenone when Thiol/ Ene system under different wavelength ultraviolet. 发现无论以二苯甲酮或是安息香乙醚为光敏剂，硫醇/体系在不同波长紫外光作用下，反应级数不同，反应机理也不同。
The reaction order and mechanism were different with both benzoin ethyl ether and benzophenone when Thiol/Ene system under different wavelength ultraviolet. 发现无论以二苯甲酮或是安息香乙醚为光敏剂，硫醇/烯体系在不同波长紫外光作用下，反应级数不同，反应机理也不同。
Corn starch gelatinized by sodium hydroxide was grafted with acrylonitrile(AN) in presence of photoinitiators, benzophenone(BP) or and benzoin ethyl ether(BE), under UN-light. 由氢氧化钠成胶状的玉米淀粉在光起始剂、苯甲酮或安息香乙醚的作用下，并在紫外光照射下，与丙烯腈接合。
Being used as fabric finish, Hydroxyethyl ethyl ether chitosan is found to be suitable for cotton fabric and carboxymethyl chitosan suitable for silk fabric. 用羟甲基化和醚化等方法制备了改性壳聚糖羟甲基壳聚糖和羟乙基乙基醚壳聚糖。
Isoamyl propionate is a colorless liquid with a pineapple and pear aroma, slightly soluble in water, miscible in ethanol, ethyl ether, insoluble in glycerin. 丙酸异戊酯是无色液体，具有菠萝及洋梨香气,微溶于水，可混溶于乙醇、乙醚，不溶于甘油。