查询词典 phenol-phthalein

The GABA content obviously is higher than each kind of tea type for GABA tea Secondly, concerning about the total caffeine and the total polyhydric phenol content, the market green tea had the best non fermented tea performance, which indicated that the fermentation degree also affect the content.

中文摘要茶为华人在生活中扮演著重要的角色，本研究使用市售绿茶、市售红茶、自制绿茶、自制红茶、自制乌龙茶、自制佳叶龙茶等六种茶种类，进行主要成分及抗氧化功能的分析。

Methods:Polyose of Tiannian Mixture was identified by TLC,and the content of polyose was determined by Phenol-Vitrionl.

运用薄层色谱法鉴别其多糖，并用苯酚-硫酸法测定其含量。

Aloe contains abundant natural vitamins, aloe polyose, phenol compounds and others beauty nutrients.

成份芦荟含有丰富的天然维生素群及芦荟多糖、酚类化合物等美容营养素。

The related feature of tribromide quaternary ammonium salt as selective bromide reagent was investigated by the reaction of acetophanone, propanone, phenol with self-made benzyl triethyl tribromide quaternary ammonium salt.

首次通过自制的苄基三乙基三溴季铵盐与苯乙酮、丙酮、苯酚等的反应，研究了三溴季铵盐作为选择性溴化剂的相关性能。

Phenol is a general protoplasmic poison that is corrosive to any living tissue it contacts.

酚是一个对它连络的任何活薄的纱织品是腐蚀的一般原形质的毒物。

The intramolecular proton transfers of phenol hydroxyl group to quinonoid carbonyl in Elsinochrome A are very sensitive for the change of molecular structure.

痂囊腔菌素A的酚羟基与醌羰基之间的分子内质子传递对其的结构变化最为敏感。7。

The results indicated that using modified phenol-sulfuric acid method, the content of polysaccharide was 5.5% in Ramulus mori, and 56.6% in RMPS, which exceeded 70% in RMPS after purifying for a few times.

结果显示，用改良的苯酚-硫酸法测得桑枝中多糖含量为5.5%，提取物桑枝多糖中的含量为56.6%。

Wood could be liquefied into soluble reactive intermediates, which could further reactedwith phenol or by themselves. Phenolation and recondensation were a pair of competingreactions. Decomposition, phenolation and recondensation dominated the whole liquefactiondynamic process and determined the structural characteristics of liquefied wood.

4木材组分在液化过程中逐渐分解为较小分子量的液化中间产物，这些中间产物的活性较高，可以继续与苯酚或互相之间发生酚化或再缩聚反应，酚化反应和再缩聚反应是一对互相竞争的反应，降解、酚化和再缩聚三种反应主宰着整个液化动力学过程，也决定着液化产物的结构特征。

Experiments indicated that the oxidative ability of ocean manganese nodules is stronger than pure MnO 2 and the reductibility of aniline is stronger than phenol.

实验表明，大洋锰结核的氧化能力强于纯的MnO2，苯胺的还原性强于苯酚。

DHCC Constance in the chemistry belongs to the onlighted Cyclopentanoperhydrophenanthrene when it reacted together with the acid Constance it could transform into the fluorescence phenol.we did the flouric determination for the DHCC, in which treated by the ethanol-sulfuric acid or acetic anhydride-methylene chloride-sulfuric acid, acquired standard curve in the 0-40μg/ml presented the liner relet...

DHCC类物质在化学上属于不发光的环戎烷多氢菲类，但与酸性物质一起反应时，可转化为产生荧光的酚类。用乙醇硫—酸或乙酸酐—二氯甲烷—硫酸处理后的DHCC进行荧光检测，获得标准曲线0—40μg/ml范围内呈线性关系，检出的最高灵敏度可达300ng/ml。该方法可用于分离后的DHCC及单一种DHCC代谢物的定性及定量分析。

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。