Therefore the reaction medium is the very important of studying how to improve the activity.
所以改变反应的介质是研究如何提高酶活性的重要方面。
The proanthocyanidin content in the ultrafine powder of grape seed was determined inn-butanol-HCl reaction medium.
以正丁醇-盐酸为铁盐催化法的反应介质，测定了葡萄籽超微粉中的原花青素含量。
Ionic liquid is a kind of liquid ionic compounds at room temperature. It was developed as a new green reaction medium.
离子液体是室温下表现为液体的离子化合物，近年来被开发成为一种新型绿色化学反应介质。
Therefore, the oxidative polymerization of DMP to form PPO using water as the reaction medium would be of significance.
因此，在DMP的氧化聚合中使用水作为反应介质是一个很重要的进展。
Properties of the reaction medium may be able to affect the function of organic macromolecular additives to some extent.
反应介质的性质能对有机大分子添加剂的诱导作用产生一定的影响。
Adding no reaction medium avoids the introduction of the other impurity, and the operation process is simple and low in cost.
无须外加反应介质，从而避免了其它杂质的引入；而且操作过程简单，生产成本低。
Should try to avoid acid-base media used interchangeably (except in and reaction medium) in order to avoid shortening life expectancy.
应尽量避免酸碱介质交替使用(除中和反应介质)，以免缩短寿命。
And the application of supercritical carbon dioxide as SFE liquid and chemical reaction medium in daily chemical industry is introduced.
介绍了超临界流体的特性、萃取原理及超临界二氧化碳作为SFE 溶剂、作为化学反应介质在日用化工中的应用。
The effects of acidity of the reaction medium on choosing solubilizers or dispersing agents for ion-association compounds have been studied.
本文研究了介质酸度对离子缔合物水相显色反应的影响。
Benzyl salicylate was synthesized by reaction of benzyl chloride and salicylate acide in a reaction medium of NaHCO 3. The yield was 81 percent.
介绍了以氯化苄和过量水杨酸在碳酸氢钠介质中利用相转移催化合成水杨酸苄酯的改进工艺， 收率达81 ％ ， 香气良好。
The application of ionic liquids as reaction medium for lipase-catalyzed biodiesel synthesis with high yield would be a highly potential possibility.
综述了离子液体作为潜在的反应介质应用于脂肪酶催化高产生物柴油的前景。
Based on the reaction medium and the elements in the catalysts, the recent progresses of epoxidation of alkenes with hydrogen peroxide have been reviewed.
以反应介质和主催化元素为线索，对双氧水为氧源的烯烃环氧化反应的最新研究进展进行了综述。
The invention relates to a method for the controlled radical polymerisation of acrylic acid and the salts thereof in a reaction medium consisting only of water.
本发明涉及一种丙烯酸及其盐在仅由水构成的反应介质中的可控自由基聚合反应方法。
As an environmentally benign chemical process, using near-critical or supercritical water as synthetic organic reaction medium has received increased attention.
作为一种环境友好的化学工艺过程，以超(近)临界水作有机合成反应介质越来越受到人们的关注。
In addition, usually prolonged reaction time is needed in the supported metal catalyzed reaction due to the solid catalyst can not be dispersed in the reaction medium.
又由于这种负载型的催化剂不能较好地分散于反应介质中，影响了催化反应效率，反应时间通常比均相催化长。
The result showed that the composition of naphthoxazine was dependent on the polarity of the reaction medium, the stronger of solvent polarity, the less of ring content.
结果表明，该预聚物的成环率和溶剂的极性有关，溶剂的极性越强，成环率越低。
The results show that the hydrophobicity of reaction medium has great impact on the activity and enantioselectivity of lipases, and isooctane was the best reaction medium.
实验结果显示疏水性溶剂对于酵素反应活性和镜像选择性有较大影响，而异辛烷为最好的反应介质。
METHODS 3,5-di-tert-butyl-4-hydroxy benzaldehyde was synthesized from 2,6-di -tert-butyl phenol in a reaction medium of acetic acid-water which its ratio was investigated.
方法以价格低廉的国产试剂2，6-二特丁基酚为原料，选择乙酸-水为反应介质，合成关键中间体3，5-二特丁基-4-羟基苯甲醛，并研究了乙酸-水配比对反应的影响；
Effects of PH in the reaction medium, the incubation temperature, the extracting agent and the sample matrix on the detection sensitivities were also studied and discussed.
笔者还对孵育介质pH和温度、提取剂及样品基体等因素对定量曲线的影响进行了研究和讨论。
The synthesis of metallocene, the effects of substitution in cyclopentadiene ring, reaction medium for synthesis and separation of chiral metallocene have been highlighted.
重点介绍了金属茂的合成方法及环戊二烯环上的取代基、溶剂对合成及分离旋光性金属茂的影响。
The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.
采用正丁醇-氢氧化钠反应体系，以十六烷基三甲基溴化铵为相转移催化剂，制得脱乙酰度为92%的壳聚糖。
This article reviews the recent development in the sucrose ester's synthesis catalyzed by enzymes, namely those involving control over the enzyme, the reaction medium and the acyl donor.
本文对蔗糖酯的酶促合成研究进行了总结，其中主要涉及到酶、反应媒介和酰基供体等影响因素。
From a psychological point of view, anxiety is considered to be a close relationship between external stimuli such as interruption or disaster exposed to life-threatening reaction medium.
从心理学上看，焦虑被认为是对外界刺激如亲密关系的中断或暴露于危及生命的灾害中等的反应。
To improve significantly the biosynthesis of isovaleryl-L-carnitine catalyzed by lipase needs to select an efficient and suitable reaction medium that is not only polar but also hydrophobic.
异戊酰- L -肉碱的酶催化合成需要选择疏水、极性的溶剂作为反应介质。
The results are discussed by comparing the different effects of micelles on this reaction, which show that the micelle can be applied on the hydride transfer reaction as an effective reaction medium.
比较了各种不同的表面活性剂胶束体系对反应的影响情况和途径，表明胶束可以作为一种有效的反应介质研究氢负离子的转移反应。
METHODS The reaction product and free radical intermediate in the reaction medium with or without antioxidants and other moderators was detected by spectrophotometry and electron spin resonance(ESR).
方法用分光光度法和电子自旋共振技术（ESR）检测加入或未加抗氧化剂等调节物的反应体系中反应产物及自由基中间产物的生成情况。
The process technology of manufacturing potassium dihydrogen phosphate by double decomposition with wet - process phosphoric acid purified by reaction medium circulation was introduced in this paper.
介绍了三聚氰胺反应媒循环法净化湿法磷酸复分解生产磷酸二氢钾的工艺技术，对由两种不同原料出发的工艺路线所得的产品进行了成本比较。
The process technology of manufacturing potassium dihydrogen phosphate by double decomposition with wet - process phosphoric acid purified by reaction medium circulation was introduced in this paper.
介绍了三聚氰胺反应媒循环法净化湿法磷酸复分解生产磷酸二氢钾的工艺技术，对由两种不同原料出发的工艺路线所得的产品进行了成本比较。
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