查询词典 phenol-phthalein

The method, which is capable of effecting very good separation of phenol and the 3 cresol isomers under the same chromatographic conditions, can be used to determine phenolic compounds in phenolic tar by external standard, and to analyze these compounds in the toxic leaching solution of the tar.

摘 要：建立了酚焦油中酚类物质质量分数测定和浸取毒性测定的气相色谱法，此法可以在同一色谱条件下对酚焦油中的苯酚及邻、间、对甲酚实现很好的分离，利用外标法分别进行定量分析，并对酚焦油浸取液中相应组份进行测量。

We take biodegradation experiments toward three colonies with different density phenolic waster water, and test their rate of phenolic degrading and speed of bacteria growth in different time period. The results show that the rates of pheolic degrading are more than 95% in 500mg/L phenol and 250mg/L cresol culture solution.

对这三株菌种进行不同浓度的含酚废水降解试验，测定其不同时间段的酚降解率和菌株生长速度，结果表明BP-1，BP-2，BP-3菌在500mg／L的苯酚，250mg／L的甲酚溶液中的降酚率均达到了95％以上。

Many disinfectants contain phenol or cresol.

许多消毒剂含有苯酚或445℃。

The main products include industrial hydroxybenzene, industrial cresol, industrial dimethyl phenol, ortho-cresol, m.p-cresol and the relevant products.

本溪钢铁公司化工厂是煤焦化工产品加工的专业企业，资产总额5000余万元，专业科技人员300余名，高中级技工500余名，拥有国内先进的蒸馏装置和日本的先进技术以及自动化生产与检测系统。

The main ingredients of that are phenol and croton oil.

在化学换肤配方中，最常用和最有效的是Baker化学换肤配方，Baker配方中的主要成分是酚和巴豆油。

After then, the phenol and croton oil chemical peeling agents were used to the UVA/B-irradiated skin of hairless mice and untreated group as controls.

同时本实验分别应用酚和巴豆油作用于体外培养原代成纤维细胞，检测成纤维细胞中前体胶原蛋白的表达。

It prepares to introduce the foreign advanced production technology for phenol-acetone by Cumene Process.

建设内容：建设苯酚厂房及生产线，拟引进国外先进的异丙苯法苯酚丙酮生产技术。

The typical industrial technology of producing phenol was cumene process containing four steps: alkylation,oxidation,purification and recovering.

异丙苯法是苯酚、丙酮的代表性工业制备方法，主要由烃化、氧化、精制、回收四个工序组成。

Cumene hydroperoxide ; resin ; decomposition ; phenol ; acetone ; catalyst

过氧化氢异丙苯；树脂；分解反应；苯酚；丙酮；催化剂

Keywords cumene process;phenol;acetone;zeolite;catalyst

异丙苯法；苯酚；丙酮；沸石分子筛；催化剂

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。