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phenol alcohol相关的网络例句

查询词典 phenol alcohol

与 phenol alcohol 相关的网络例句 [注:此内容来源于网络,仅供参考]

The obtained results show that the primary and secondary alcohols areconverted in good yields, whereas tertiary alcohol and phenol are unreactive.

当原料分别为乙醇、正丁醇、仲丁醇、苯甲醇和苯乙醇时,目标产物碳酸二乙酯、正丁基乙基碳酸酯、仲丁基乙基碳酸酯、苯甲基乙基碳酸酯和苯乙基乙基碳酸酯的产率分别为67.3、52.3、56.7、37.6和32.8%。

As early as 1872, German chemist Adolf Von Baeyer was investigating the recalcitrant residue that gathered in the bottom of glass-ware that had been host to reactions be-tween phenol (a turpentine-like solvent dis-tilled from coal tar, which the gas-lighting industry produced in bulk) and formalde-hyde (an embalming fluid distilled from wood alcohol).

早在1872年,德国化学家阿道夫?冯?拜耳就在研究主要由酚(从煤气照明工业大批量产出的煤渣中提炼的类似松节油样的溶剂)和甲醛(从本醇中提炼的防腐液体)之间的反应所产生聚集在玻璃器皿底部的棘手的残渣。

RESULTS: Dryopteris Crassirhizoma Nakai after being curshed has the maximum in the yield, the total phenol of carbonized products, the water extract and alcohol extract.

结果 :生品出膏率,炭品总酚类、水浸出物、醇浸出物含量均以切碎品最高。

The elements in bamboo liquid such as ethylic acid, phenol compounds and alcohol can clean skins and diminish inflammation with their effects of antibiosis, bacteriostasis.

竹醋中的&醋酸&、&酚系化合物&及&醇&等成份,具有清洁皮肤和抑菌、抗菌、消炎等功能。

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。

Antibacterial deodorizes : The bamboo coal's charcoal structure is compact, the proportion is big, the holes are many, the mineral substance content is rich, therefore has the very strong adsorption resolution capability, to the air sulfide, the nitride, the methyl alcohol, the benzene, the phenol, the chloroform and so on organic pollutant or the harmful chemical substance, can display the outstanding absorption and disappear the smelly function.

六:抗菌除臭:竹炭的炭质结构非常致密、比重大、孔隙多、矿物质含量丰富,因此具有很强的吸附分解能力,对空气中的硫化物、氮化物、甲醇、苯、酚、三氯甲烷等有机污染物或有害化学物质,均能发挥优异的吸收和消臭功能。

Extracted DNA by CTAB, in proportion to the additions of PVP and β-mercap toethanol to the extraction buffer were capable of preventing browning from taking place in the extraction, Tris-Phenol (Stabilized with 0.1M Tris, pH 8.0)/Chloroform/isoamyl alcohol were used to remove protein and impurity in the second extraction, during crude DNA used to Isopropanol DNA and deterged by DNA detergent, without using RNase remove RNA, we detected the quality and concentration of DNA respectively for normal leaves and drought stress leaves by Agarose gel electrophoresis of genomic DNA and ultraviolet spectrometry photo.

用20%聚乙二醇(polyethylene glycol,PEG6000)模拟干旱,采取CTAB提取缓冲液,按一定比例加入PVP和β-巯基乙醇,用Tris平衡酚-氯仿-异戊醇除去蛋白质及杂质,在粗提时用异丙醇沉淀DNA,并用DNA洗液(10mmol/L醋酸铵,75%乙醇)洗涤DNA,在纯化时用乙醇沉淀DNA,且没有加入RNase去除RNA的方法,分别提取2个品种正常和干旱胁迫的苹果属叶片总DNA,并对提取的DNA进行琼脂糖凝胶电泳和紫外分光光度计检测。

Such as,(1) Active Zincdust catalyzed the esterification reactions between benzoyl chloride and phenol or alcohol,which needed not solvent, warming and could fulfilled in a very short period (1-2min), andthe handling of the reaction mixtures was very simple. We believe it's the simplest and mosteconomic method for the synthesis of many aryl esters.

包括:(1)活性锌粉催化的酯化反应,在室温下即可反应,毋需溶剂,毋需加热,反应迅速(通常1—2分钟即可反应完全),处理非常简便,相信目前是合成许多芳香酯最简便的方法,是一种值得加以推广的合成芳香酯的好方法。

Butyric acid,phenol,indol and polycyclic aromatic hydrocarbons are inferredin the solution phase of leachate by GC,and 53% of organic acids,18% of alcohol andphenols,and 7% of alkanes are detected in leachate by GC-MS.The colloidal structure oflandfill leachate is analyzed by determination ofξ-potential and the interfacial tension,whichprovide the basis to pretreatment by the coagulation and treatment by advanced oxidation.

首先测定了垃圾渗滤液的常规水质因子及污染物含量,并采用GC及GC-MS技术对垃圾渗滤液有机相的微观结构进行了分析,由GC谱图解析推断渗滤液的溶液相中含有丁酸或辛酸、苯酚、吲哚及多环芳烃等有机物;由GC-MS解析可知其有机物主要为有机酸,约占53%,其次醇及酚类约占18%,烷烃约占7%。

The bamboo liquid, which is called magic water and whose PH is 3-4, has a pleasant smell. It is a kind of bluish yellow or yellowish brown liquid which is formed while bamboos are burned and decomposed. It contains over 200 kinds of organic elements and 10 types of minerals. Its main elements are water, organic acid, phenol, ketone, alcohol.

竹酢液,日本称为魔法之水,呈酸性,PH值3-4,带天然熏香味,是竹材热解过程中得到的青黄色或黄棕色液体,其成分相当复杂含有200多种有机成分及数十种矿物质,其主要成分是水、有机酸、酚类、酮类、醇类等。

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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。