查询词典 purify

The method to purify compound 4 was resolved. A novel method to prepare the intermediate from phenylacetyl chloride was selected in this paper. The facile synthetic scheme put forward in this work is simple to operate and has the characteristic of high yield and good feasibility.

解决了终产品4的分离纯化难题，采用生成衍生物再进行水解的方法达到了纯化目的；提出了合成中间体3-羟基-4-苯基-吡喃-2，5-二酮(7)的较为新颖的方法，操作简单，各步中间体无需作进一步纯化便可进行下一步反应，从而得到了结构较新颖的终产品4。

Chlorine is often added to water to purify it.

氯是经常补充水的净化。

She also found a sea of rotten secret: forest fungi is not the source of toxic substances, on the contrary in the soil and purify the air of toxic ingredients to make it into non-toxic inorganic crystal sand.

也是她发现了腐海的秘密：菌类森林并不是有毒物质的来源，相反是在净化土壤和空气中的有毒成分，使之结晶化为无毒的无机沙粒。

Purpose The aim is to purify the peptide with antifu ngal activity from Aspergillus fumigatus culture fluid.

目的 从烟曲霉菌培养上清液中分离纯化具有抗真菌活性的肽类物质。

XLP/A Cyclone dust collector is used to purify dusts such as tobacco、pencil stone、quartz、coal、pottery clay、casting sand、quartz sand、cement and etc.

XLP/A型旋风除尘器适用于净化烟草、滑石、石英、煤炭、陶土、铸砂、石英砂、水泥等粉尘。

The equipment is convenient to be used to purify the tail gases in any kind of stationary oven,drying pipe of continuous operation and chemical installations.

以低能耗为突出优点的本型设备，将在各种有机废气治理领域内为净化环境和节能作出卓越的贡献。

Objective To isolate,identify and purify the allergens in egg.Methods The albumen was extracted from the egg and the albumen from the vitellus.The total protein of the egg was isolated by SDS-PAGE.The allergens of egg were identified by Westernblotting.

分别提取鸡蛋的蛋清与蛋黄的蛋白，通过十二烷基硫酸钠-聚丙烯酰胺凝胶电泳分离鸡蛋的蛋白质组份，采用免疫印迹(Western-blotting，WB)方法鉴定过敏原，通过离子交换层析对鸡蛋主要过敏原进行初步纯化。

Synthesis 3,5-dihydroxytoluene by ethyl acetoacetate and diketene as material(yield 6%),by 3-methyl-4-chlorophenol and KOH as material(yield 30-40%)respectively,It was solved for product separation and purify.

分别以乙酰乙酸乙酯与双乙烯酮为原料(收率6%)、3-甲基-4-氯苯酚与氢氧化钾为原料(收率30-40%)合成了3，5-二羟基甲苯，解决了产品分离纯化问题。3-甲基-4-氯苯酚路线进行了中试，中试收率为20%。

A deep-peeling gel made with natural Cellulose and AHAs of Apple Extracts to exfoliate the skin and purify the pores.

由天然纤维素及苹果的AHAs制成，具高效软化老化角质效能及彻底洁净毛孔内残余污垢。

1St with asanas we have to purify our body and mind.

Ashtanga 第一序列的练习可以净化我们的身体和意识。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。