查询词典 phenol-phthalein

So far they have been synthesized with various substituted groups and cavity-size of 4-20 phenol units. Calixarenes have been utilized in fields of complexation, catalysis, extraction, ionophore and so on.

目前已经合成出了4-20个苯酚单元所构成的不同环腔尺寸和具有不同取代基的杯芳烃：它已在配位、催化、萃取、离子载体、分离材料等领域得到了应用，在色谱中的应用也日益受到关注。

The bamboo liquid, which is called magic water and whose PH is 3-4, has a pleasant smell. It is a kind of bluish yellow or yellowish brown liquid which is formed while bamboos are burned and decomposed. It contains over 200 kinds of organic elements and 10 types of minerals. Its main elements are water, organic acid, phenol, ketone, alcohol.

竹酢液，日本称为魔法之水，呈酸性，PH值3-4，带天然熏香味，是竹材热解过程中得到的青黄色或黄棕色液体，其成分相当复杂含有200多种有机成分及数十种矿物质，其主要成分是水、有机酸、酚类、酮类、醇类等。

The research of phenol-formaldehyde resin modified with lac can be expected to widen the application of the lac and enlarge the utilization of the renewable resource.

研究了对紫胶改性酚醛树脂胶粘剂的固化时间、接胶合板的粘接强度和甲醛释放量进行了测定。

Low-boiling phenols in low-temperature coal tar are important chemical raw materials. For the identification and determination of the individual phenol boiling below 210℃ in the low temperature coal tar, the methods of gas chromatography, liquid-liquid chromatography followed by ultra-violet analysis and fractional distillation followed by infrared analysis were evaluated and compared.

随着煤炼油工业的发展，煤焦油中的酚类，特别是低級酚，作为化工原料的利用很重要，我們应用(1)气液色譜法，(2)液液色譜与紫外光譜法結合及(3)精餾与紅外光譜法結合三种不同方法对210°以前的低級酚进行了各种异构体的成分分析，比較分析結果：三种方法对同一样品进行分析时，最大絕对誤差在2％以内，其中以气液色譜法最为快速，液液色譜法次之，精餾-紅外光譜法費时間較多；但后二种方法所得数据較完全。

Codeine has the same structure as morphine, but the phenol group is masked as a methyl ether.

可待因也有和吗啡相同的结构，但是酚基被甲基醚屏蔽了，结果。

We draw fresh blood with EDTA anticoagulant of two millilitre from every patients. First we draw DNA of leukocyte from blood by the method with saturation phenol and chloroform second we amplificate the ACE gene using the DNA polymerase chain reaction technic employing the primer gene designed by Rigat.

首先应用饱和酚-氯仿法提取白细胞DNA，之后采用Rigat等人设计的ACE基因引物，应用PCR技术对标本ACE基因进行扩增，扩增产物采用2%琼脂糖凝胶电泳。

The results indicated that phenol, methylphenols and naphthols, with high concentration, exsisted in coking wastewater, and a small quantity of chorophenols and nitrophenols was also inside it.

实验结果表明，焦化废水中含有高浓度的苯酚、甲基酚和萘酚，同时存在微量的氯酚和硝基酚。

The resin in your cost-conscious choice of a woodchip roof, a waterproof goo of formaldehyde and phenol polymer, was also applied along the board's exposed edges, but it fails anyway because moisture enters around the nails.

你出于成本考虑而选择的木制胶合板，其中含有的树脂是一种由甲醛和苯酚的复合物构成的防水黏合剂。它也被涂抹在木板暴露在外的边缘，不过没什么作用，因为水份从钉子周围渗透进去。

The paper applied the quantum chemistry methods and systematically studied the following 4 systems:(1) poly(alkylthiophene-co-pyridine)s;(2) carbazolyl-pyridinyl alternating copolymers;(3) 2,7- linked and 3,6-linked carbazole trimers (4) phenol-pyridyl boron complexes.

本文用量子化学方法系统研究了如下4个体系：(1)系列噻吩和吡啶共聚物；(2)咔唑和吡啶交替聚合物；(3) 2，7-咔唑和3，6-咔唑三聚物；(4)苯酚-吡啶硼配合物。

Phenol derivative was obtained during preparation of 2, 4-diketone sulfone and its'stucture was determined by X-ray.

并对2、4—二羰基砜的生物还原作了一些试探性工作，在原料合成得到一苯酚衍生物，X-ray分析其结果。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。