英语人>网络例句>醇酚 相关的搜索结果
网络例句

醇酚

与 醇酚 相关的网络例句 [注:此内容来源于网络,仅供参考]

The produced compound pipe materials are widely used in conveying hot water, pure water, sea water, oil, phenol, alcoholate and other un-oxidizing organic liquids.

生产的复合管材广泛用于输送热水、纯净水、海水、油类、酚、醇非氧化性有机流体等。

Bamboo vinegar have above 100 kinds constituents. Which include water, organic acid, phenol compound, alkanet compound, alcohol compound and so on.

竹醋液主要成分是水,其次是有机酸、酚类、醇类、醛类及其它杂环类等100多种物质。

Methods Microwave technique applied in polysaccharides in fruit of melia azedarach were obtained by hotwater extraction and ethanol precipitation,content determination with phenol-vitriolic colorimetry.

目的 苦楝果实中提取糖,并测定其含量方法运用微波技术用水提醇沉法提取苦楝果实多糖,用酚-硫酸比色法测定多糖含量。

PVC resin, PTFE resin, fumaric acid, anthraquinone, nitroanthraquinone, paraaminophenol, melamine, cyanuric acid, sulfanilic acid, chemical inhibitor 168, azoic coupling component As, stearate, aniline, nitroaniline, pentaerythritol, chlorcosane, sodium calcium, triethylene diamine, sodium benzene sulphinate, m-phthalic acid, thiourea, aniline black dyestuffs, acid dyestuff, etc.

聚氯乙烯树脂、聚四氟乙烯树脂、反丁烯二酸、蒽醌、硝基蒽醌、对氨基苯酚、三聚氰胺、氰尿酸、对氨基苯磺酸、抗氧剂168、色酚As、硬脂酸盐、苯胺、硝基苯胺、双季戊四醇、氯???腊、甲酸钙、三乙烯二胺、苯亚磺酸钠、间苯二甲酸、二甲酯五磺酸钠、硫脲、油溶性苯胺黑染料、酸性黑染料等有机化工原料和中间体。

Characteristics of Inclusions: After the tea is kept for a long period of time in a stall and deep fermentation processing begins, the specialties of material and manufacturing make many bioreactions occur for thorough activation of microbes to excrete extra-cellular enzymes, which impacts over 500 stuffs of tea. Theses microbes contain catechin, polyphenols, amylase, cellulose, protein, lipid ,alcohol, ketone, vitamin, microorganism, and organic acid, making them transform, isomerize and degrade, polymerize and couple, so as to produce amylase, thearubigins, theaflavins, cellulose, and microelements that other commercial teas could not produce or produce too little.

三、 内含物的特点:由于原料、制造的特别性,经长期陈化和深发酵的过程,茶叶内含物发生多种生物生化反应,充分激活微生物分泌胞外酶,作用于茶叶中的内含儿茶素、多酚、多糖、纤维素、植物素、蛋白质、脂类、醇类、酮类、维生素、微量元素、有机酸等500多种物质,使之转化、异构降解聚合耦联,生成其他商品茶无法比拟和缺乏的多糖、茶红素、茶黄素、纤维素、微量元素等,并形成以菇稀醇类为主体香气。

We have presented a practical method for the preparation of propargylic alcohols from terminal alkynes and carbonyl compounds promoted by KOH in the presence of 18-crown-6,and subsequent efficient cyclizations of propargylic alcohols with 2-naphthol catalyzed by InCl_3·4H_2O under the solvent-free ball-milling conditions.Ball milling exhibits its superiority over the reported methods in the preparation of propargylic alcohols and naphthopyran derivatives.

采用机械研磨方法进行了连续的两步固相化学反应的研究:首先,在氢氧化钾和18-冠-6的作用下,端基炔和羰基化合物在机械研磨条件下反应可以高效地生成相应的炔醇化合物;其次,在四水合三氯化铟的催化作用下,生成的炔醇化合物和2-萘酚在机械研磨条件下环加成生成相应的萘并吡喃产物。

These results indicate that cabbage phenolic extract and single phenolic acids,i.e.Ferulic acid,Sinapinic acid and Gallic acid,etc.

研究表明,卷心菜提取物以及单个酚酸(儿茶素、阿魏酸和香豆酸)可以抑制〓、〓—7,8—二氢二醇和四氯化碳在肝微粒体作用下的代谢,降低主要代谢产物〓—7,8—二氢二醇、〓—7,8—二氢二醇—9,10一环氧化物和丙二醛的生成量。

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。

The synthesization technics of MPEG- MAA was studied in this paper,which is an important intermediate used for preparation of polycarboxylate superplasticizer.

本文对制备聚羧酸系减水剂的重要中间体——甲基丙烯酸聚乙二醇单甲醚酯的合成工艺进行了研究,考察了反应时间、催化剂对甲苯磺酸的用量、阻聚剂对苯二酚的用量、反应温度及甲基丙烯酸与聚乙二醇单甲醚的用量比对酯化率的影响。

Other phenolic compounds found in tea even greater concentration than the flavonols are the flavanols.

茶叶中存在的比黄酮醇类物质浓度更高的其它酚类化合物是黄烷醇类物质。

第7/18页 首页 < ... 3 4 5 6 7 8 9 10 11 ... > 尾页
推荐网络例句

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。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。