查询词典 ethyl acetate
- 与 ethyl acetate 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11,which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl)acetamide (1) and ergosta-7,22-diene-3,6-dione (2) respectively on the basis of spectral analyses and physical and chemical identifications.
从云南土壤真菌07-11号菌株的发酵液乙酸乙酯萃取物中分离得到2个化合物,通过理化鉴别和光谱测定,鉴定两化合物分别为N-(4-羟基-2-甲氧苯基)乙酰胺(1)和麦角甾7,22-二烯-3,6-二酮(2)。
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Chondrus ocellatus was extracted by methanol, ethanol, ethyl ether, ethyl acetate, petroleum ether and acetone, respectively.
采用甲醇、乙醇、乙醚、乙酸乙酯、石油醚、丙酮6种溶剂分别对角叉菜进行冷浸提取。
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Our company is mainly engaged in chemical raw materials trading, the company mainly engaged in: toluene, xylene, mesitylene, durene, 6 # 120 # 200 # solvent, ethyl acetate, butyl acetate, acetone, butanone, cyclohexanone, isophorone, MIBK, isopropyl alcohol, isobutyl alcohol, butanol, mixed alcohols, methanol, ethanol, ethylene glycol, diethylene glycol, diacetone alcohol, Anti-White Water, CAC, n-hexane, dichloromethane, trichloro-B, DMF, 5 # 10 # 15 # white mineral oil, lubricating oil, sewing machine oil, as well as high-pressure polyethylene, linear polyethylene, low-pressure polyethylene, polypropylene, rubber and other chemical raw materials.
我公司主要从事化工原料贸易,公司主要经营:甲苯、二甲苯、三甲苯、四甲苯、6# 120# 200#溶剂、醋酸乙酯、醋酸丁酯、丙酮、丁酮、环已酮、异佛尔酮、MIBK、异丙醇、异丁醇、正丁醇、混丙醇、甲醇、乙醇、乙二醇、二甘醇、二丙酮醇、防白水、CAC、正已烷、二氯甲烷、三氯乙、DMF、5# 10# 15#白矿油、润滑油、针车油以及高压聚乙烯、线性聚乙烯、低压聚乙烯、聚丙烯、橡胶等各种化工原料。
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Ethyl 4,4,4-trifluoroacetoacetate was synthesized from ethyl acetate and 4,4,4-trifluoroacetate(mole ratio 3:1) with sodium ethoxide.
乙酸乙酯与三氟乙酸乙酯(摩尔比为3∶1)在乙醇钠作用下进行克莱森酯缩合反应,得到三氟乙酰乙酸乙酯。
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The average recoveries of ethyl acetate and isoamyl acetate were
该法灵敏度高,可准确检测啤酒中的高级醇和酯类。
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By using gas chromatography technique nine kinds of fragrance components(acetic aldehyde,ethyl acetate,ethanol,propyl acetate,3-hydroxy-2-butanone,acetic acid,furfural,metacetonic acid,2,3-butylene glycol)were measured quantitatively in different kinds of Shanxi overmature vinegar and the other kinds of vinegar.
应用气相色谱方法对山西老陈醋和其他种类醋的9种香气成分(乙醛、乙酸乙酯、乙醇、乙酸丙酯、3-羟基-2-丁酮、乙酸、糖醛、丙酸、2,3-丁二醇)进行了定性、定量测定,并用聚类分析、模糊综合评判、方差分析、回归分析的方法对实验结果进行了数理分析。
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Results: Nine compounds were obtained from the ethyl acetate fraction of C. speciosa and were identified as methyl chlorogenate, 5-O-cafeoyl quinic acid butyl ester, quinic acid butyl ester, 5-hydroxymethyl-furan-2-carbaldehyde, triacontanoic acid,-epicatichin, 7,8-dihydroxy-coumanrin, protocatechuic acid ethyl ester, and protocatechuic acid.
结果:从皱皮木瓜的乙酸乙酯萃取部位分离鉴定了9种化合物,分别为绿原酸甲酯,5-O-咖啡酰基-奎宁酸丁酯,奎宁酸丁酯,5-羟甲基-2-糠醛,三十烷酸,-表儿茶素,7,8-二羟基香豆素,3,4-二羟基苯甲酸乙酯,原儿茶酸。
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Chloroacetic acid,chloromethyl ether,acetone,mphenylenediamine,butyl acetate,ethyl acetate,methylene chloride,ethylene dichloride,dioxane.
氯乙酸,氯甲醚,丙酮,间苯二胺,醋酸丁酯,醋酸乙酯,二氯甲烷,二氯乙烷,二氧六环。
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According to the results of the former study in our laboratory, trans-1, 2-cyclohexanediol is produced with a lot of acids and water, for extraction of trans-1, 2-cyclohexanediol from the solution, ethyl acetate and butyl acetate were used as extraction reagents, the solubility data of the trans-1, 2-cyclohexanediol in corresponding mixed solvents of some sorts of acetates and water are needed.
根据本实验室前期研究结果可知,反式-1,2-环己二醇是在酸性和大量水存在的条件下得到的,为了把反式-1,2-环己二醇从反应液中萃取出来,本工艺所采用的萃取剂是乙酸乙酯和乙酸丁酯,需要获得反式-1,2-环己二醇在这些酯类与水混合溶剂中的溶解度数据,因而对反式-1,2-环己二醇进行相关固液相平衡的研究是非常迫切和必要的。
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The reversible addition fragmentation chain transfer radical polymerization of vinyl acetate was carried out in ethyl acetate.
在乙酸乙酯溶剂体系中考察了RAFT试剂结构、/、单体浓度对VAcRAFT溶液聚合规律的影响。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力