合成了一种新的乙酸2-辛基十二烷醇酯。
摘要目的：建立一种气相色谱法同时测定注射用青霉素钠中有机溶剂丁醇、乙酸乙酯、乙酸丁酯残留量的方法。
To found a method to detect the residual solvents of penicillin sodium for injection: butanol acetic ether and butyl acetate.
海水富含多种矿物质成分，与生育酚乙酸酯一起配合富含自然多糖的黄原胶，令肌肤有光泽细腻。
Rich in various minerals, sea water works well with tocopheryl acetate and Xanthan, the latter with abundant natural polysaccharides, making the skin illuminating and smooth.
其中一个初始的细菌经历了一次变异，分泌出了一种有机化学物质乙酸酯。
One of the original bugs had undergone a mutation that caused it to excrete acetate, an organic chemical.
其中有一个初始的细菌经历了一次变异，使它分泌出了一种有机化学物质乙酸酯。
One of the original bugs had undergone a mutation that caused it to excrete acetate , an organic chemical.
如果能以乙酸与丙烯直接酯化一步合成乙酸异丙酯，则是一条理想的原子经济反应工艺路线。
If the synthesis of isopropyl acetate was manufactured by acetic acid and propylene, it would be a perfect atom economical technical route.
发酵过程中还检测到乙醛、乙酸乙酯、己酸乙酯、戊酸乙酯和乳酸乙酯等成分及一些未知成分。
In addition, acetaldehyde, ethyl acetate, ethyl caproate, ethyl valerate, ethyl lactate and some other unidentified compositions were also detected.
以乙酸和正丁醇催化酯化合成乙酸丁酯为探针反应，对氧化铌负载型催化剂的制备与催化活性进行了一系列研究，得出了优惠工艺条件。
Taking the synthesis of butyl acetate by the catalytic esterification of acetic acid and butanol as a probe reaction, a series of studies on the preparation of the catalyst and its activity was made.
结果表明异汉逊酵母产酒精和乙酸乙酯的能力与呼吸代谢有一定关系。
The result shows that the capacity of producing alcohol and ethyl acetate is related to respiration to some extent.
一种乙酸酯，用于纤维、织物、照相胶卷和清漆中。
An ester of acetic acid; used in fibers and fabrics; photographic films and varnishes.
乙酸酯是一类重要的有机溶剂和有机化工基本原料，广泛用于有机合成、油漆涂料、医药、香料、粘接剂等行业。
Acetate is an important kind of organic dissolvent and chemical raw stuff. It is wildly used in such industries as organic synthesis, paint, coating, medicine, aromatics and binder etc.
原因是40- 42指的标准化都芳樟醇和乙酸芳樟酯造成了非常一致的花香味。
The reason is that the 40-42 refers to the standardization of both Linalool and Linalyl acetate resulting in a very consistent floral scent.
论述了松节油与冰乙酸一步法合成乙酸松油酯工艺。
The technology of one step synthesis of terpinyl acetate from turpentine and glacial acetic acid is described.
一种带共沸精馏分水的新型酯化反应实验装置用于合成乙酸异戊酯。
A new esterification equipment with a water separator by azeotropic rectification was used to the synthetic reaction of isopentyl acetate.
蓝靛果乙酸乙酯提取物是一种具优势的消化性溃疡治疗药物。
EELC is a suit medicine of gastric ulcer because it possesses the inhibitory effect of gastric ulcer protective.
指出了采用固体酸催化剂一步法合成乙酸松油酯应是今后研究工作的重点。
It is pointed out that the one-step process catalyzed by solid acid catalysts will become the focus of research works for terpinyl acetate synthesis.
二羟乙酸l -薄荷酯是一种重要的手性试剂。
用DABF作为催化剂，研究了乙酸与乙醇反应合成乙酸乙酯反应的热力学，通过热力学计算所得到的反应平衡产率与实验值基本一致。
The thermodynamics of ethyl acetate synthesis by the esterification of acetic acid and ethanol was explored in the presence of DABF as catalyst, showing that the reaction is an equilibrium one.
前言：目的：建立一种气相色谱法同时测定注射用青霉素钠中有机溶剂丁醇、乙酸乙酯、乙酸丁酯残留量的方法。
Objective: to found a method to detect the residual solvents of Penicillin Sodium for Injection: butanol, acetic ether and butyl acetate.
目的：研究一个能同时测定空气中苯、甲苯、二甲苯、乙酸乙酯、乙酸丁酯等有机毒物的检测方法，用以对新装修旅店客房有机毒物含量分析。
Result:Organic poisons such as benzene, xylene, methylbenzene, ethyl acetate and butyl acetate could be separated effectively by column FFAP, the ralative standard deviation of the method was 1.
一种清除口香糖残渣的清除剂由二硫化碳、二氯甲烷、乙酸乙酯、司班-80、环己酮及十二烷基苯磺酸钠及水组成。
The scavenging agent for scavenging the chewing gum residual consists of carbon disulfide, methylene dichloride, ethyl acetate, span-80, cyclohexanone, sodium dodecyl benzene sulfonate and water.
乙酸正丁酯是一种性能优良的有机溶剂，广泛应用于制药、涂料等行业。
N-butyl acetate is of excellent performance as an organic solvent, which is widely used in the pharmacy and the painting.
综述了乙酸松油酯的合成研究现状，讨论了一步法和两步法合成工艺及相应的反应机理。
The present situation of terpinyl acetate synthesis has been reviewed. One-step and two-steps process for the synthesis of terpinyl acetate and relevant reaction mechanism are discussed.
说明化合物A是乙酸乙酯萃取物中主要抗病毒活性成份之一。
The result indicated that the compound A was one of the main antiviral components in acetate extract.
乙二醇单乙酸醋酸酯做为一种高档溶剂，有着广阔的应用前景。
As a high-grade solvent, 2-ethoxyethanol acetate will have a good future to be used in chemical industry.
方法原甲酸三乙酯与氰乙酸乙酯缩合，然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸，然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
其中一个初始的细菌经历了一次变异，分泌出了一种有机化学物质乙酸酯。
A second bug experienced a mutation that allowed it to make use of the acetate excreted from the first.
乙酸异丙酯与多种溶剂混合使用，在烟丝的生产中有一定的应用。
And isopropyl mixes with some solvents could be used in manufacturing of drags.
乙酸异丙酯与多种溶剂混合使用，在烟丝的生产中有一定的应用。
And isopropyl mixes with some solvents could be used in manufacturing of drags.
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