查询词典 ethylenediamine

CdSe QDs of zinc blende structure have been synthesized by a simple ethylenediamine-assisted method.

采用简单的乙二胺辅助方法合成出闪锌矿型结构的CdSe QDs。

Simultaneous removal of NO and SO〓 can be achieved by dissolving calcium oxide into cobalt ethylenediamine basic solution.

在碱性溶液中加入乙二胺合钴也可以实现NO的氧化和吸收同时进行，乙二胺合钴离子是氧化催化剂，氧化剂是废气中的氧气，该方法的实施能使NO的脱除工艺简化；在该溶液中再加入生石灰可以同时脱除SO〓。

Ethylenediamine was used as a flexible chain as well as a connecter to get water-soluble methyl red-modified hydroxypropyl β-cyclodextrin.

再利用乙二胺分子作为柔性链和连接剂键连制得水溶性的甲基乙二胺基羟丙基-β-环糊精。

Based on the predecessor study on deamination of industrial ethylenediamine on normal pressure and on the basic principles of reaction engineering,the method,criteria and parameter of amplification is determined.

根据以乙二胺为原料常压气固相催化合成哌嗪的小试研究结果，依据反应工程学的基本原理，确定了放大方法、放大准则和放大参数。

Ethylenediamine,1,6- hexane diamine and their mixture were employed as water- soluble reactive monomers.

分别用乙烯二胺， 1， 6-己二胺和它们的混合物作为水溶性单体进行了研究。

In part three, the characteristics of RBH and rhodamine B ethylenediamine were compared.

第三部分比较了RBH和罗丹明B-乙二胺(Rhodamine B ethylenediamine，RBE)的性质。

Optimal process conditions for preparing N,N'-ethylenediamine diacetic acid: Potassium cyanide was combined with formaldehyde and ethylenediamine at a mole ratio of 2.4 to 2.4 to1, at temperature 18℃,and then was hydrolyzed for 8 hours.

通过单因素分析，合成N，N′—乙二胺二乙酸的最佳反应条件为：反应温度为18℃，水解时间为8 小时，甲醛∶氰化钾∶乙二胺的摩尔比为2.4∶2.4∶1。

N,N'-ethylenediamine diacetic acid was prepared by condensation of ethylenediamine, formaldehyde and potassium cyanide. Then 2-oxo-1-piperazine acetic acid was prepared from N,N'-ethylenediamine diacetic acid. In addition, 2-oxo-1, 4-piperazine diacetic acid(3-KP) was prepared from 2-oxo-1-piperazine acetic acid with chloroacetic acid.

本文用乙二胺、甲醛和氰化钾合成了N，N′—乙二胺二乙酸，然后由N，N′—乙二胺二乙酸合成了2—氧—1—哌嗪乙酸，再由2—氧—1—哌嗪乙酸和氯乙酸合成了2—氧—1，4—哌嗪二乙酸(3-KP)。

The results showed that there was a more better effect of filmformation and absorbency to use poly 1788 as an adhesive and polyvinyl pyrrolidone(K:90) as a hydrophilic polymer. The silicon dioxide with particle size 0.3-1 μm as a inorganic pigment had a better absorbency. The polyethylene glycol modified with ethylenediamine had a more better characteristic of dye immobilization, absorbency and definition than the polyethylene glycol modified with diethylenetriamine, of which the polyethylene glycol of molecular weight of 400 modifiedwith ethylenediamine had more best performance.

研究结果表明：采用聚乙烯醇1788作黏合剂、聚乙烯吡咯烷酮(K值为90)作亲水性高分子可得到比较理想的成膜效果和吸墨效果；粒径分布范围在0.3-1 μm的二氧化硅作为无机颜料具有较好的吸墨性能；用乙二胺改性的聚乙二醇比用二乙三胺改性的聚乙二醇具有更好的固墨性、吸墨效果以及清晰度，其中乙二胺改性的分子量为400的聚乙二醇所得到的烷基多胺的效果为最好。

Nanocrystalline copper tellurides Cu〓Te〓 and Cu〓Te〓 have been successfully prepared in ethylenediamine and ethylenediamine with hydrazine hydrate system under high-intensity ultrasonic irradiation at room temperature respectively. Nanocrystalline silver tellurides Ag〓Te and Ag〓Te〓 have been successfully prepared in ethylenediamine and ethanol system under high-intensity ultrasonic irradiation at room temperature respectively.

在制备碲化铜时，在纯乙二胺体系超声辐射所制备的最终产物为Cu〓Te〓，而在加有水合肼的乙二胺中制得的产物为Cu〓Te〓；在制备碲化银时，在乙二胺体系制备的产物为Ag〓Te，而在乙醇体系制备的产物为Ag〓Te〓。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。