查询词典 phenol-phthalein

Many reactions using TS-1 as the catalyst such as the hydroxylation of phenol and the epoxidation of propylene have been investigated recently.

但是，与钛硅分子筛的美好应用前景相比，其在工业推广中所迈出的步伐却很小。

In this dissertation, we studied the catalysts, reaction conditions and mechanism of one-step hydroxylation of benzene to phenol oxidized by molecular oxygen, which is the cleanest and the most economical process.

所以近年来作为一条比较经济的路线，以苯为原料经过一步氧化，直接羟基化生产苯酚的反应吸引了各国研究者的广泛关注，这也是催化化学中最为艰难、最具有挑战性的研究课题之一。

The oxides with spinel and peroskite structure are the key active components for phenol hydroxylation, and higher contents of them have the higher reaction activity.

形成的尖晶石或钙钛矿结构为苯酚羟基化反应的活性相，具有良好晶态的复合氧化物催化剂的反应活性较高。

Many reactions using TS-1 as the catalyst, such as the hydroxylation of phenol and the epoxidation of propylene have been investigated recently, which exhibit a vast potential application in industry.

但与钛硅分子筛的美好应用前景相比，其在工业推广中所迈出的步伐却很小。

The metallomicelles made of Co complexes containing imidazole groups and different surfactants has been employed to catalyze the oxidation of phenol by H〓O〓, and the satisfactory results have been obtained.

探索了将金属胶束模拟过氧化物酶的可行性，本文用一种Co单核配合物与不同类型的表面活性剂形成的金属胶束催化过氧化氢对苯酚氧化反应，得到了较为满意的结果。

The purpose is to study the enzyme characterizations of neutral protease fermented by synergism strains of Bacillus natto SH and B1. The optimal reaction temperature, optimal reaction pH, pH stability, thermal stability, metal ions, surface-active agent, inhibiter, simulated intestinal environment on enzyme stability were determined by Folin-phenol method, diversify graphs of residual activity were drawed.

为研究纳豆芽孢杆菌SH和B1配伍发酵产物中中性蛋白酶的性质，通过Folin-酚法测定中性蛋白酶的最适作用温度、最适作用pH值、pH稳定性、热稳定性和金属离子、表面活性剂、抑制剂、模拟胃肠道环境对酶活力的影响，绘制相对酶活力变化图。

Xxzj1028ypj Calcium-rich yogurt and lactic acid bacteria can improve the body's immune function, Jerusalem artichoke in the chrysanthemum-rich phenol is a non-digestible carbohydrates - the body can promote the growth of beneficial bacteria to promote the body's absorption of calcium, two kinds of food be "good fit" but.

酸奶中富含的钙质和乳酸菌可以提高人体的免疫功能，洋姜中富含的菊酚是一种不易消化的碳水化合物——可以促进体内有益菌群的生长，促进人体钙质的吸收，两种食物再"般配"不过。

OBJECT: To investigate the effect of environment hormone on lepidopteron, studied of 2,4-Dichlorophenol (2,4-DCP) and P-nony-phenol act on the Bombyx silkworm in vivo, BmN cells, Sf9 cells and silkworm hemopoietic organ in vitro.

目的 为了探讨环境激素对鳞翅目昆虫的影响，研究了环境激素2，4—二氯苯酚(2，4-DCP)和壬基酚对家蚕机体、BmN和Sf9培养细胞及家蚕培养造血器官的作用。

On the other hand, alcohol and phenol compounds are the main compounds in ether fractions (SF2 and LF2), where the main compound is linalool.

在乙醚区分物(SF2， LF2)的组成分中皆以醇酚类化合物为其主要的组成分，其中以linalool为主要的化合物。

Grinding the coal powder mixed with a few linotype phenol - formaldehyde resins, the surface of the coal powder was modified by the meehanoehemical effect during ball milling.

在神府煤粉中加入少量线型酚醛树脂后在行星球磨上进行混合球磨，利用球磨过程中的力化学作用对煤粉进行表面改性，用傅立叶变换红外光谱、热重分析仪和激光粒度分布仪等对改性后煤粉进行了表征。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。