查询词典 bromide

A chiral phase transfer catalyst, N-benzyl quinine bromide, was synthesized from natural chiral compound. And 2,5-bimethyl-4-(3-nitrobenzene)-1,4-bihydrogenation pyridine-3--4-methyl formate (viz. nitrendipine) was synthesized by this chiral phase transfer catalysis, and characterized by elemental analysis, infrared spectrum,1H nuclear magnetic resornace, and X-ray single-crystal diffraction.Key words: ammonium; chiral phase transfer catalyser; crystal structure

通过对天然手性物质进行修饰合成手性相转移催化剂N-苄基溴化奎宁，并对目标分子2，5-二甲基-4-(3-硝基苯)-1，4-二氢吡啶-3-甲酸乙酯-5-甲酸甲酯进行不对称催化合成，并通过红外光谱和核磁共振氢谱对化合物进行了表征，用X射线单晶衍射法测定了该化合物的晶体结构。

Rumor has it that cooks in the Soviet army were given special orders to slip bromide into the food of draftees so that the latter may be less preoccupied with *.

有传闻说，前苏联军队在士兵吃的食物中放入了适量药物以降低士兵性欲。

Rumor has it that cooks in the Soviet army were given special orders to slip bromide into the food of draftees so that the latter may be less preoccupied with sex.

有传闻说，前苏联军队在士兵吃的食物中放入了适量药物以降低士兵性欲。

ASpheric FeNi nanoparticles with average diameter of about 70 nm were obtained in the system of cetyltrimethyl ammonium bromide/H_2O,while most of the products were nanofilms/rods with the addition of cyclohexane; nearly monodisperse FeNi nanoparticles with average diameter of about 25 nm were prepared in the system of PEG/cyclohexane/H_2O.With the assistance of ultrasonic,a no-surfactant method to 8.5 nm FeCo nanocrystals with high Ms(＞200.5 emu/g)has been developed with economical FeCl_3·6H_2O as iron sources.

a以水合肼为还原剂在十六烷基三甲基溴化铵/H_2O体系中得到了平均粒径约70 nm的FeNi合金球形颗粒，当在此体系中加入环己烷时样品主要形态为纳米膜/棒；于PEG/环己烷/H_2O体系中制备了单分散性较好的平均粒径约25 nm的FeNi合金纳米颗粒，合金纳米颗粒粒径随金属离子浓度减小而减小。

TOAB (tetra-n-octyl-ammonium bromide) serves as a catalyst initiating the reaction between dodecanethiol and Cux(x-2). When it is absent, nanoparticles were not formed and white floccules were observed in the bottom of toluene phase .

四丁基溴化铵起到催化剂的作用，在它存在的时候，十二烷基硫醇和铜母体的氧化还原反应优先发生。

Some prospective soil fumigants which can substitute Methyl bromide were introduced,while the tendency development of soil fumigants used in vegetable greenhouse was summarized as well.

介绍了几种可以取代溴甲烷的土壤消毒剂，指出了今后用于蔬菜大棚的土壤消毒剂的发展趋势。

Presents the application of lithium-bromide absorption refrigerating and heating machine with flue gas heat recovery in combined cooling heating and power system.

介绍了烟气余热回收利用型溴化锂吸收式冷热水机在冷热电三联供系统中的应用。

Chemical products containing gold and silver, including gold chloride, gold and potassium cyanide, gold water, silver nitrate, silver oxide, silver chloride, silver iodide, silver bromide, etc.

含金银化工产品：包括氯化金、氰化金钾、金水、硝酸银、氧化银、氯化银、碘化银、溴化银等。

Ionization-dissociation of methyl bromide in intense laser field was studied using home-built reflection time-of-flight mass spectrometer.

利用自制的反射式飞行时间质谱仪研究了多原子分子CH3Br在强激光场中的电离解离。

The separation behavior of o hydroxybenzoic acid, m hydroxybenzoic acid and p hydroxybenzoic acid in high performance capillary zone electrophoresis was investigated using cetyltrimethylammonium bromide as reversed reagent for electroosmotic flow The effects of pH of buffer solution and volume fraction of methanol on the separation, peak shape and elution order were studie

采用十六烷基三甲基溴化铵为电渗流改性剂，考察了邻羟基苯甲酸、间羟基苯甲酸和对羟基苯甲酸在高效毛细管区带电泳模式下的分离行为，研究了缓冲液的pH和添加剂甲醇的用量对这 3种同分异构体的分离、峰形和出峰顺序的影响，并据此优化了这 3种异构体的分离条件。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。