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酰化

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The carapace element after escapes acetylize to respond then obtains the shell polyose.

甲壳素经脱乙酰化应声后便得到壳聚糖。

AIM: To study the role of acylation stimulating protein in the differentiation of 3T3-F442A preadipocytes.

目的:探讨新型脂源性激素促酰化蛋白是否具有诱导前脂肪细胞分化的作用。

The experimental results showed that the rate of drug-release of the vesicles decreased with increasing degree of acylation, and the rate could be increased with the addition of lecithin.

结果表明自组装泡囊的药物释放速率随酰化取代度的增大而降低。同时在自组装泡囊的制备过程中加入胆固醇,能引起自组装泡囊的药物释放速率增大。

Quantum chemical and molecular mechanical methods were employed to study the acylation in the acetylthiocholine hydrolysis catalyzed by acetylcholinesterase.

应用量子化学和分子力学方法研究乙酰胆碱酯酶催化硫代乙酰胆碱水解反应中的乙酰化反应,计算了反应物、过渡态、产物及中间体的几何结构及电子结构。

Synthesis of the substance from aniline and hexafluoroacetone involves electrophilic addition ,acylation and reduction.

其合成一般是以苯胺和六氟丙酮为起始原料,经过亲电加成、酰化和还原三步反应。

The pure isomers 3-(1-hydroxyethyl)-8-vinyldeuteroporphyrin Ⅸ and 3-vinyl-8-(1-hydroxyethyl)deuteroporphyrin Ⅸ were obtained from protoporphyrin Ⅸ dimethyl ester.Starting from these two acetylating compounds,eight new porphyrin derivatives were synthesized through an alkyloxy fission reaction.

以原卟啉Ⅸ二甲酯为起始原料,合成并分离得到3-(1-羟乙基)-8-乙烯基次卟啉Ⅸ(Ⅱ1)和3-乙烯基-8-(1-羟乙基)次卟啉Ⅸ(Ⅱ2)二个异构体,两者分别经酰化后与醇进行烷氧裂解反应合成了8个全新的卟啉衍生物。

Experimental results show that the incorporation of appropriate amounts of Al~2O~3 into SO~4^2^-/ZrO~2, SO~4^2^-/TiO~2 and SO~4^2^-/Fe~2O~3 is helpful for stabilizing the sulfur species and increasing the effective acid sites on the catalyst surfaces, which can improve the strong acidity and catalytic activity in benzoylation.

实验表明,向SO~4^2^-/ZrO~2,SO~4^2^-/TiO~2和SO~4^2^-/Fe~2O~3中引入适量的Al~2O~3,有助于稳定样品表面的含硫物种,增加样品表面的有效酸位,提高样品的强酸性和对甲苯的苯甲酰化的反应活性。

Experimental results show that the incorporation appropriate amount of Al into SO〓〓/ZrO〓, SO〓〓/TiO〓 and SO〓〓/Fe〓O〓 is helpful to stabilize the sulfur species on catalyst surfaces and to improve the superacidity and catalytic activity for benzoylation of toluene with benzoyl chloride.

实验表明,向SO〓〓/ZrO〓、SO〓〓/TiO〓和SO〓〓/Fe〓O〓中引入适量的Al〓O〓,有助于稳定样品表面的硫物种,提高样品的超强酸性和对甲苯的苯甲酰化反应活性。

A three-dimensional large pore zeolite Hβ is used in the benzoylation of anisole instead of the classical Lewis acid catalysts to synthesize the important fine chemical intermediate 4-methoxybenzophenone.

采用高硅铝比、热稳定性好的三维大孔Hβ沸石替代传统Lewis酸催化剂催化苯甲醚的苯甲酰化反应,合成了重要精细化工中间体4-甲氧基二苯甲酮,收率可达92%。

The conditions for HPLC to detect endogenous polyamines were optimized, that is, benzoylation for 30min at 37℃, detection wave length at 230nm, elution speed at 0.7ml·min〓 Using the above method, endogenous polyamines of calli in Citrus were analyzed.

优化了植物多胺的HPLC测定条件,确定在37℃苯甲酰化反应30min,检测波长230nm,流速0.7ml·min〓效果最佳。

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推荐网络例句

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意,我建议我们在价格上大家各让一半。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。