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Adopting TPB as catalyzer of solidifying chemical reaction,it can distinctly quicken reactive rate. It is relatively reasonable for controling reactivetemperature at 50℃. Vacuumized and deposited one day at normal temperature before hightemperature solidifying chemical reaction, which is propitious to remove air bubble frompropellant columniation.

采用三苯基铋作固化催化剂,可明显加快固化反应的速度,固化反应的温度控制在50℃比较合理,在高温固化前抽真空和常温下放置一天有利于排除药柱中的气泡。

The purpose of this paper is to synthesize some phosphonium salts with PPh3 and some chiral quaternary ammonium salts with L-Valine. And we also use L-Valine and L-Phe-OMe to synthesize a new type catalyst —2,5-diketopiperazine , the simplest compound of cyclo-peptide.

本文利用廉价易得的三苯基磷和手性L-缬氨酸作为起始原料,合成了几种普通季鏻盐和手性季铵盐,并且利用L-缬氨酸与L-苯丙氨酸甲酯反应,合成了一种新型的相转移催化剂——2,5-二酮哌嗪环类的化合物。

We studied the effects of different organic solvents and inhibitors on the decolorization of recombinant triphenylmethane dyes decolorization enzyme, expressed extracellularly from Pichia pastoris.

本文在利用毕赤酵母成功分泌表达高活性三苯基甲烷类染料降解酶TpmD的基础上,研究不同有机溶剂和常见酶抑制剂对纯化后的重组脱色酶TpmD活性的影响。

The 24 h-LC50 of triphenytin to Chironomus plumosus larve,Galba pervia and Tubifex tubifex were 278.7,249.1,287.8 μg·L-1,respectively.The 7 d-KBCF of Chironomus plumosus larve to TPT at 5 and 10 μg·L-1 was 60.4,70.5,respectively.

结果表明,三苯基锡对羽摇蚊幼虫、小锥实螺、颤蚓的24 h-LC50分别为278.7、249.1、287.8μg.L-1;羽摇蚊幼虫在5、10μg.L-1TPT时的7 d-KBCF分别为60.4、70.5;小锥实螺在10、20μg.L-1TPT时的7 d-KBCF分别为2 648、1 377;颤蚓在10、20μg.L-1TPT时的7 d-KBCF分别为41.7、48.7。

Aim: To determine whether activation of κ-opioid receptor with U50,4 88 H, a selective κ-opioid receptor agonist, produces any changes in electrical u ncoupling during prolonged ischemia and whether these changes in electrical unco upling is associated with the cardioprotection induced by κ-opioid receptor ac tivation, and to explore the possible mechanism.

测量指标:以分光光度计在490nm波长下测定氯化三苯基四氯唑与活细胞反应的产物formazan含量的方法测定心肌细胞活性、测定冠脉流出液中乳酸脱氢酶的含量以及心室内压;②全心停灌70min,应用四电极法观察不同浓度U50,488H、nor-BNI和5-HD对缺血期间心肌整体阻抗和电脱耦联参数(电脱耦联时间、平台时间、电脱耦联最大速率和阻抗倍数)的影响。

In the photolysis of 9, phosphine dissociation is followed by addition of HCl yielding the neutral vinylidene complex Cl[Ru1]=C=CHC(CCl3)2 10, [Ru1] = Cp

当进行光裂解错合物的反应时,在加入氯化氢分子的状况下,产生一个中性的钌金属亚乙烯基错化合物Cl[Ru1]=C=CHC(CCl3)2 10, [Ru1] = Cp(PPh3Ru 并且伴随著一个三苯基磷分子的离去。

Omeprazole racemate was resolved respectively by simulated moving bed chromatography and batch chromatography with the coated cellulose triphenylcarbamate as chiral stationary phase and ethanol containing 0.1% diethylamine as mobile phase.

用纤维素三苯基氨基甲酸酯涂敷型手性固定相和含0.1%二乙胺的乙醇溶液,研究了模拟移动床色谱和间歇色谱对奥美拉唑对映体的拆分。

In this dissertation,we chose some simple ligands as raw materials.A series of metal-organic complex were synthesized under room temperature.Their molecule structures were determined and some relative physical and chemical properties were studied in the purpose of discovering some new phenomena between the structure and NLO properties.It will settle foundation studies for developing this work frothily.

本论文主要以有机磷配体三苯基氧化磷作为起始原料,在温和条件下,设计、合成了一系列金属-有机配合物,测定其晶体结构,并积极开展了一些相关的物理化学性质的研究,努力揭示晶体结构与其二阶非线性光学效应之间的新现象,新问题,为进一步拓展和深化该工作奠定基础。

Abnormally enhanced absorptions for the methine proton in products of triaryl orthoformate derivatives were also observed in C6D6 , indicating the formation of the product resulted in radical pair intermediate.

在氘苯中,产物三苯基原甲酸酯衍生物的次甲基质子的异常增强吸收,表明该产物由中性自由基对形成。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes was first investigated in room temperature ionic liquids.

反应温度为100~140 ℃,CO初始压力为2~6 MPa条件下,研究了室温离子液体与过渡金属三苯基膦配合物构成的催化反应体系中,叔丁醇与乙醇的氢酯基化反应。

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推荐网络例句

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢?

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我,一个心中布满虚荣的女孩子真实的想法。

Oh, and I bought myself a new laptop," he said."

哦,我还给我自己买了一个新笔记本"他说。"