查询词典 phenol-phthalein

The effect of inorganic salt on the phenol removal was investigated by potassium ferrate, and the relationship between the dose of salt and the phenol removal ratio was researched.

研究了无机盐对高铁酸钾去除苯酚的影响，考察了盐的用量与苯酚的去除率之间的关系。

Several kinds of 4-arninopyrazolone derivatives were synthesized. The reactions between those derivatives and phenol under potassium ferricyanide were used to enrich and determine phenol by an online capillary tube coupled with flow injection system with our own design.

本文合成了几种4-氨基吡唑啉酮衍生物，比较了它们在铁氰化钾存在下与苯酚及其衍生物的反应，并利用这些反应生成的化合物於自行设计的流动注射分析系统，实现了总酚在线分离富集。

Several kinds of 4-aminopyrazolone derivatives were synthesized. The reactions between those derivatives and phenol under potassium ferricyanide were used to enrich and determine phenol by an on-line capillary tube coupled with flow injection system with our own design.

文章摘要：本文合成了几种4-氨基吡唑啉酮衍生物，比较了它们在铁氰化钾存在下与苯酚及其衍生物的反应，并利用这些反应生成的化合物于自行设计的流动注射分析系统，实现了总酚在线分离富集。

96H LC 0,96 h LC 50 ,and 96 h LC 100 of twelve chemicals of phenol ,alkyl benzene and nitrobenzene,and three water samples to sword fish(\%Xiphophorus helleri)\% and rare minnow(\%Gobiocypris rarus\%) were tested.3. The phenol ic waste water was purified through the absorption of polyvingl pyridine.

介绍了含酚废水与聚乙烯基吡啶类树脂接触，酚类会吸附在树脂上，使废水得到净化，然后将吸附了酚类的树脂加热处理回收酚，与此同时，对树脂也进行了再生处理，再生后的树脂可循环使

IR studies of Co metal ion complexes with salicylaldehyde benzoyl hydrazone in solid state brings out the deprotonation of phenol in the formation of Co in pH 5—6 solution.On the contrary,the phenol is protonated in the formation of Co 2 in pH 8—10 solution,which is the same as the result of Zn 2 formation.

水杨醛苯甲酰腙钴络合物在固态的红外光谱分析表明，p H约 5— 6时，生成的络合物Co中的酚羟基脱质子，当 p H控制在 8— 10时，生成的络合物 Co 2 酚羟基质子化，即酚羟基未脱除质子，与络合物 Zn 2 的 IR结果相同。

Be opposite through comparing colophony the difference of the phenol in age alkyl and the adsorptive function with adjacent phenolic nitrobenzene, proved colophony to be opposite further the phenol in the system that be not water kind corporeal adsorption is the mechanism that is based on hydrogenous key action.

通过比较树脂对正庚烷中苯酚和邻硝基苯酚的吸附性能的差别，进一步论证了树脂对非水体系中酚类物质的吸附是基于氢键功能的机理。

Quality control used in hplc determination of menthol tincture of phenol content in phenol.

质量控制中采用高效液相色谱法测定薄荷脑苯酚酊中苯酚的含量。

Results: the hplc method for the determination of phenol menthol tincture of phenol content, accuracy and good reproducibility.

结果：采用高效液相色谱法测定薄荷脑苯酚酊中苯酚的含量，测量准确，重复性好。

The basic structural motive of alkali lignin is similar with phenol, containing phenol-carbonyl, alcohol-carbonyl, metonym and other active groups, and it can set off a reaction of carbonyl modification.

碱木素基本结构单元分子类似于苯酚，含有酚羟基，醇羟基，甲氧基等活性基团，可以发生羟甲基化等改性反应。

Exotic-sounding chemicals like nonyl phenol and alkyl phenol ethoxylates are found in detergent, furniture polish, cosmetics and household cleaners, and contain environmental impurities.

异国情调冠冕堂皇的化学品如壬基酚和烷基酚醚被发现在洗涤剂，家具波兰，化妆品和家庭清洁工作，并遏制环境杂质。

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。