查询词典 phenol-phthalein

In addition, the reactions of the carbodiimide with alkanol and substituted phenol were studied firstly.

研究了4-酯基吡唑-5-碳二亚胺(Pyrazole-5-N=C=N-Ar)与NH_3，RNH_2，R_2NH和RNHNH_2成环反应的选择性。

The cyclization of carbodiimide 2 with substituted phenol in presence of solid potassium csrtjonaic was studied TiisX'iy. Tne resuYls show that It is a new mM method fOT preparing of 2-aryloxyimidazolones.

首次研究了碳二亚胺2与酚在碱催化条件下的成环反应，结果表明这是一种温和的制备2-芳氧基咪唑啉酮的新方法。

Tyrosinase is a copper-containing oxidase that catalyses the oxidation of phenol like compounds and is widespread in plants and animals.

酪胺酸酶是一个结构复杂的含铜氧化还原酵素，广泛的存在于微生物、动植物及人体中。

Ethyl phenoxyacetate has been synthesised by the reaction of phenol with ethyl chloroacetate under the condition of solid-liquid phase transfer catalysis using PEG-400 as the catalyst.

于固一液相转移催化条件下，以PEG-400为催化剂，通过苯酚与氯乙酸乙酯反应合成了苯氧基乙酸乙酯。与85％的水合肼作用得到相应的酰肼。

The use of chemically-methyl phenol and chloroacetic acid to synthesize methyl-phenoxyacetic acid.

利用化学方法将间甲基苯酚和氯乙酸合成为间甲基苯氧乙酸。

Results: A total of 18 kinds of SVOCs were qualitatively and quantitatively analyzed, the main compounds deteced were dimethylphthalate, diethylphthalate, dibuylphthalate, bis (2-ethylhexyl) phthalate, phenol, chrysene, benzo anthracene, benzo fluoranthene, benzo perylene, indeno (1, 2, 3-cd) pyrene, dibenzo anthraeene.

结果：定性定量检出邻苯二甲酸二甲酯、邻苯二甲酸二乙酯、邻苯二甲酸二丁酯、双（2-乙己基）邻苯二甲酸酯、邻苯二甲酸二辛酯、丁基苄基邻苯二甲酸酯、苯酚、4-甲基苯酚、萘、荧蒽、芘、屈、苯并蒽、苯并荧蒽、苯并荧蒽、苯并二萘嵌苯、茚并(1，2，3-cd)芘和二苯并蒽18种优先控制有机污染物。

By using TiO〓 and Ag-TiO〓 as photocatalyst, 257nm wavelength UV as light source, methylene blue and phenol as model compounds, photoregenerations of wooden and coaly activated carbons were performed in suspension system and immobilized system respectively.

以TiO〓和Ag-TiO〓为光催化剂，主波长257nm的紫外杀菌灯为光源，亚甲基蓝、苯酚为模型化合物，分别研究木质、煤质活性炭在悬浮钛体系及负载体系的光再生。

Xylem: Chinese P.chinensis Bge 49.15mg/g, Atlantic Ocean 46.58mg/g, UCB 55.28mg/g. 3.In certain condition, Gas-chromatograms and Mass spectrum are use to identifie phenol. Pistacia vera L .leave contain pyrocatechol 0.7640mg/g, pyrogallol 0.0580mg/g, gallic acid 1.03024mg/g, catechin 0.1040mg/g and coumaric acid by different pre-treatment methods.

采用不同方法提取阿月浑子叶片酚类物质，气相色谱-质谱法对其进行定性与定量分析，阿月浑子叶片中含有邻苯二酚0.7640mg/g；邻苯三酚0.0580mg/g；没食子酸1.3024mg/g；儿茶素0.1040mg/g，香豆酸；确定了最佳的前处理方法。

Starain LHG1 could not only utilize the intermediate products of cycloalkanes－clohexanone and cyclopentanone, but also could degrade alkane, aromatic hydrocarbon and phenols, such as liquid paraffin,solid paraffin, naphthalene and phenol.

LHG1菌株能够利用环烷烃代谢的中间产物环己酮和环戊酮。此外，LHG1菌株还能降解液体石蜡、固体石蜡、萘和苯酚等链烃、芳香烃和酚类。

The main compositions of LP are shorter chain carboxylic acid and their ethyl esters, furan derivatives, cyclopentanone, phenol derivatives, benzene derivatives, aromatic ketone, aromatic acid derivatives, longer chain carboxylic ethyl esters and sterides. After upgrading, the main indexes reach the standard of fuel oil.

结果表明，LP的主要成分包括短链或环状脂肪酸及其酯、呋喃衍生物、环戊烯衍生物、苯酚衍生物、苯衍生物、芳酮、芳酸及其乙酯、长链脂肪酸乙酯和甾族化合物，经提质其主要指标达到了燃料油的标准。

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。