还原的

In reductive amination, how to avoid to turn ketones into alcohols is one of difficulties in industrialized manufacturing.

在还原胺化类催化加氢反应中，如何避免酮被还原成醇，也是工业化生产中面临的难题之一。

During the study, we improved the condensation condition of the carboxylic acid and the amine, which increased the overall yield by 9 times.

我们从哌嗪出发经取代、还原、烷基化、酰化、还原和磺酰化，共经十三步反应完成地拉韦定的全合成。

It was homogenous as judged by SDS-PAGE and had an apparent molecular weight of 36 kDa under non-reducing conditions and 38 kDa under reducing conditions, respectively.

Jerdonitin在还原和非还原SDS-PAGE电泳中分别呈现一条表观分子量为38和36 kDa的条带。

The approach of preparation method is that, first, blend yttria into hot aquafortis, add silicone grease chemical compound after reaction, cool it to form gel. Second, heat the gel for 1-48 hours to acquire solid fruitage. Third, igloss the fruitage in reducing gas for 1-48 hours. Forth, add anorg and then igloss it in reducing gas for 1-48 hours in the temperature between 800-1600 degree.

它的制备方法，包括以下步骤：1将氧化钇溶入热浓硝酸中，反应后加入硅酯类化合物，恒温形成凝胶；2凝胶加热1-48小时，得到固相产物；3在还原气氛中灼烧1-48小时；4加入无机盐，在800-1600℃范围内，还原气氛中灼烧1-48小时；5稀酸洗涤，干燥后得到稀土激活Y2SiO5荧光粉。

Two approaches are employed to prepare thiocyanuric acid derivatized gold nanoparticles, including the direct reduction of gold ions by potassium bitartrate and NaBH〓 and then through ligand exchange reaction.

用两种不同方法合成了三聚硫氰酸衍生的金纳米粒子，包括由酒石酸氢钾直接还原金离子及NaBH〓还原金离子后经配体交换反应。

At the same dosage, alkaline reduction ability of sodium hydroxide is better than calcium hydroxide.

结果表明，甲醛的强碱还原转化主要取决于碱投加量和反应温度，在同样投加量下，氢氧化钠比氢氧化钙对甲醛还原能力稍强。

This paper describes two methods of 4th derivative spectrophotometryfor the determination of carboxyhemoglobin in blood.Both of them areaccurate,precise and reliable.

一氧化碳中毒血液经连二亚硫酸钠还原后成为可见光区碳氧血红蛋白和还原血红蛋白的二元吸光物质体系。

Subsequently, comparing the reductive dechlorination performance between the different bemetallic systems, such as Cu/Fe, Ag/Fe, Pd/Fe, and so on, for halogenated methane, 2,4-D, HCH and chlordane.

实验结果表明，Pd/Fe双金属催化体系对高浓度高卤代甲烷系列污染物并没有表现出优于Cu/Fe还原体系的还原脱卤性能。

Chlorophenol and 4-chlorophenol can be transformed to phenol and chloride ion and 2, 4-dichlorophenol to phenol, chloride ion and a small amount of 2-chlorophenol and 4-chlorophenol.

2-氯酚和4-氯酚被还原脱氯生成苯酚和氯离子，2，4-二氯酚被还原脱氯生成苯酚、少量的2-氯酚和4-氯酚以及氯离子。

The influences of reduction temperature and time on the particle size of cobalt powder were studied.

考察还原温度和还原时间对钴粉粒度的影响。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。