查询词典 phenol-phthalein

No products wereobserved in HPLC-MS which were generated from the reaction of peroxyl radicalwith phenol hydroxy in the B ring of rutin.

HPLC-MS分析没有得到过氧自由基与芦丁B环酚羟基反应的产物。

This thesis is constituted by four parts: In the first part a summarization is given on the main total synthetic methods of isoflavones, for example, deoxybenzoin method which generally involves two steps wherein a phenol is reacted in the presence of a Lewis acid with phenylacetic acid to generate an intermediate deoxybenzoin which is then cyclized with a one carbon electrophile.

本论文主要工作包括四部分：第一章综述了近年来全合成异黄酮的主要方法：脱氧安息香法，是以多羟基苯酚与苯乙酸或苯乙腈在Lewis酸存在下，反应生成中间体脱氧安息香，然后再与亲电碳试剂进行关环反应生成异黄酮。

Abstract— Three types of organic pollutants, phenol, phenylamine and dimethyl phthalate as the law of the wastewater treatment were researched with ECS.

文 摘 采用自制的电催化装置研究了苯酚、苯胺和邻苯二甲酸二甲酯三种有机污染物的废水处理规律。

The photoactive capability of ZnO films was investigated by degradation of phenol method.

为了有效提高薄膜的孔隙率并增强其光催化性能，本论文利用两步氧化法制备了ZnO薄膜。

The particle diameter, per-surface area of the prepared catalyst particles will enhance photoactivity in the degradation of phenol.

Ce4+可显著提高TiO_2的活性，主要归因于锐钛矿结晶度、比表面积、孔径和孔容的提高，特别是表面缺陷的增加。

Any of a group of chemical compounds formed by a reaction of phthalic anhydride with a phenol,from which certain synthetic dyes are derived.

酞一组化合物之一，由邻苯二甲酸酐和酚反应而成，某些合成染料是由此提取的

Acetone-water at 60℃water bath for 60min and solid to liquid ratio 1:50 for twice. 2.Through the optimal method analysis phenol content in leave,phloem and xylem from the different breeds of Pistacia vera L.

应用阿月浑子总酚最佳的提取工艺条件对不同生长时期阿月浑子和黄连木不同品种的叶片、韧皮部、木质部中的总酚含量动态变化进行分析。

The main results are as follows: 1.Through the solvent contrast test and the single-factor tests ensure that the best extraction solvent and the relevant factors effect on extraction rate.Orthogonal tests are use to assure the optimal method of extracting phenol compounds from Pistacia vera L .

主要结果如下： 1、通过溶剂对比试验及单因素试验确定了从阿月浑子叶片中提取总酚的最佳提取溶剂及影响浸提率的相关因素，并通过正交实验优化了最佳提取工艺条件：利用80%的丙酮水，按1：50的料液比，在60℃下连续浸提两次，每次60min。

Secondly, we established the method of HPLC to determine the content of liensinine in order to control the quality of phenol total base of plumula nelumbinis. With the method we compared three different solvent extraction, and the result showed alcohol-acid water-organic solvent was the best solvent extraction.

使用HPLC法对莲子心酚性总碱中的莲心碱进行质量控制，对三种莲子心酚性总碱的提取方法进行了对比，通过三种溶剂法对莲子心总碱进行提取的实验，结果表明，醇一酸水一有机溶剂提取法提取效率最高，总碱提取率达11.25%，莲心碱提取率为1.20%，此方法操作简便，溶媒易得。

The mechanism of action maybe include the depression in content of collagen, inhibition to proliferation of lung fibroblast, action of anti free redical and anti lipid peroxidation, and elevation of content of GSH-PX.So we think phenol total base of plumula nelumbinis is a sort of promising drug to healing PF.

综上所述，我们认为莲子心酚性总碱可能对肺纤维化的病理过程有多靶点作用：前期通过抗自由基作用，从而减轻肺泡炎损伤：后期直接抑制肺成纤维细胞的增殖及蛋白沉积，减轻纤维化病变程度。

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。