查询词典 phenolic

The catalytic action of various kinds of functional coordination compound and metallomicelles which are made from the complex and micelle, used as mimic hydrolase or peroxidase, have been studied respectively in catalyzing the phosphatic diester hydrolysis and the phenolic derivant oxidation, in the paper.

通过研究模拟酶了解天然酶的结构、性质和功能之间的关系，探索酶催化反应机理，为设计、合成结构简单、高活性、高选择性和反应条件温和的理想催化剂奠定理论基础，开发出具有实用价值的绿色催化剂。

With the rapid development of chemical industry, it has been used in many areas, such as in manufacturing phenolic resin, diacetic acid, diethylamine, chemical herbicides, synthetic dye, medicine, wood preservatives and dynamite, etc.

它的用途非常广泛，利用苯酚可以制造酚醛树脂、乙二酸、己二胺、化学除草剂、合成染料、药物、炸药、木材(来源：f9f9ABC论文网www.abclunwen.com)防腐剂等。

OH radicals produced by ultrasound in aqueous solution attack phenolic cycle at adjacent or para position of the hydroxyl on phenol so that phenol is changed into small organic molecules such as muconic acid, maleic acid and ethane diacid. These small organic molecules will be oxidized to form carbon dioxide and water by.

苯酚超声降解的作用机理是，超声空化在水溶液中产生的·OH自由基进攻苯酚苯环上羟基的邻位或对位而使苯环断裂生成己二烯酸、顺式丁烯二酸和乙二酸小分子有机物而使苯酚得以降解，这些小分子有机物在·OH自由基的进一步作用下最终被氧化成CO〓和H〓O。

Phenolic melamine, novolak, and dicyanodiamide were used as curing agents to prepare the thermoset resins with the control and the phosphate-based epoxy resins. Thermal properties and thermal degradation behavior of these thermoset resins were investigated by using differential scanning calorimetry and thermo gravimetric analysis.

以双氰胺、苯酚三聚氰胺、酚醛树脂为固化剂制备了一系列含磷环氧树脂的固化体系，差示扫描量热法和热失重分析表明，这些热固性树脂具有优异的热性能和热稳定性。

This product is the main ingredient of the drug salvia for the fat-soluble quinone-type diterpene of phenolic acids and water-soluble components, have cardiovascular aspects of the pharmacological effects, in recent years, studies show that water-yong Danshensu components of the lunwen114expansion of the heart Cerebro-vascular, anti-platelet aggregation, the removal of oxygen free radicals, such as the role of a quinone-type diterpene of tanshinone stronger, and water-soluble components of anti-myocardial ischemia is the main ingredient.

本品的主药丹参的有效成分为脂溶性的二萜醌类和水溶性的酚酸类成分，均具有心血管方面的药理作用，近年来研究表明水镕性成分丹参素的扩张心脑血管，抗血小板聚集，清除氧自由基等作用较二萜醌类的丹参酮更强，且水溶性成分是抗心肌缺血的主要成分。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

Ellagic acid is a phenolic compound found in fruits and nuts including raspberries, strawberries, grapes and walnuts.

鞣花酸是一种酚类化合物，存在于水果和坚果中，包括覆盆子、草莓、葡萄和核桃等。

First, the preparation of the aminom ethylation of tannin using its electrophilic reaction activity of C-6, C-8 in ring-A; then process the quaternization base on the aminom ethylation; last, progress the sulfonation by use of the activity of phenolic hydroxyl hi ring-B.

首先利用单宁A环的C—6、C—8的亲电反应活性制备单宁胺甲基化产物；然后在胺甲基化的基础上进行季胺盐化；最后利用单宁B环的酚羟基的活性进行磺化。

Objective:To establish a method for determining the contents of total phenolic acid in Evodia rutaecarpaJuss.

目的：建立吴茱萸中总酚酸含量的测定方法，测定吴茱萸及其炮制品中总酚酸的含量。

First, a detailed study was made on the HRP-H〓O〓- phenolic compounds fluorogenic reaction.

首先，详细研究了辣根过氧化物酶用于荧光免疫分析中的对位取代酚类化合物氧化反应的酶活性与产物荧光的pH不匹配问题。

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。