查询词典 methyl-glyoxal

The separation of meta- and para- methyl cresol ether using six type of packed and fused silica capillary columns is compared.

比较了不同固定液的填充柱和毛细管柱对间、对甲酚甲醚异构体的分离效果。

The results showed that the optimum conditions for pretreatment of coking wastewater were 6 g activated carbon per liter, 30 ℃, pH=9 and reaction for 20 min, under which the removal efficiency of organic pollutants are more than 70%. Among the 56 kinds of organic compounds, 45 kinds such as dolichoalkanes, polynucleation aromatic series, azacyclo compounds could be removed, and the removal ratios of amidobenzene, hydroxybenzene, indoleacetic, acid-2-methyl-phenyl-ester are 63.5%, 42.6%, 88.1%, 28.1% respectively, while cresol and xylenol are more than 70% and 85%.

结果表明，在最佳反应条件即活性炭投加量6 g·L-1，温度30 ℃，pH＝9，反应时间20 min的情况下处理废水有机物去除率大于70％，原水中检测出的56种有机物中的45种被去除，如长链烷烃、多环芳香族及氮杂环化合物等的浓度降至检测限以下，剩余的11种有机物中苯胺、苯酚、吲哚、乙酸-2-甲基苯酯的去除率分别达到63.5％、42.6％、88.1％、28.1％，甲苯酚和二甲苯酚(5种)去除率在70％和85％以上。

The adsorption kinetic processes of methylene blue, crystal violet and methyl green from aqueous solution on activated sepiolite were studied, and the effects of concentration and temperature on adsorption were analyzed.

以热酸活化过的海泡石为吸附剂，研究其对亚甲基蓝、结晶紫和甲基绿3种染料的吸附动力学过程，并分析了浓度、温度等因素对海泡石吸附效果的影响。

The experimental results also revealed that quinoline, isoquinoline and 7-methyl quinoline were included by cucurbit[ 6-8 ] uril with different ratios.

实验表明喹啉、异喹啉、7-甲基喹啉与六、七及八元瓜环有包结作用，形成多种不同包结比的稳定包结配合物。

The structures and fluorescence characteristics of cucurbit[ n = 6-8]urils with quinoline, isoquinoline and 7-methyl quinoline have been investigated by fluorescence spectrophotometry.

利用荧光光谱分析方法考察六、七及八元瓜环与喹啉、异喹啉、7-甲基喹啉相互作用的结构特征以及光学特性。

This route overcomes the shortcoming on environmental pollution and poison in the cyanide process, which is widely applied in our country. This route isnt known in our country. It is a new environmental pollution process, and is in according with the progress of industrial policy. In the second step, the methyl isobutyl ketone which introduced in the patent is replaced by the material A, and the marketable foreground of the byproduct is considered. It is an innovated process, which can supply a gap in our county.

文中探讨的工艺路线克服了国内所广泛采用的氰化法路线所带来的环境污染和人体危害问题，目前国内尚未有报道，是一条新型的环保路线，符合国家产业政策的发展方向，而且在第二步3-氨基丙醇的合成中，用原料A取代专利中介绍的甲基异了酮，在获得产物的同时又兼顾了副产物的市场潜力，工艺上具有创新性，可填补国内该工艺路线的空白。

The preparation of polymer is required for high purity of glycolic acid, if not, low-weight polymer is obtained, therefore, high purity glycolic acid is scarce in the market. So, the research for the synthesis of glycolic acid is essential. In domestic and overseas, there are many methods for preparation of glycolic acid, including glycin oxidation, cyanogenesis, aldehyde oxidation, coupling of maldehyde and methyl formate, oxalic acid electrolysis, chloroactic acid hydrolysis and so on.

制备羟基乙酸的聚合物时，对羟基乙酸单体的纯度要求较高，否则得到的聚合物分子量较低，导致高纯度羟基乙酸的需求量逐年增长，目前在国内，高纯度的羟基乙酸还没有形成工业化规模生产，对羟基乙酸的合成进行研究是非常有意义的。

This article describes the new process of methyl methacrylate which uses methanol,carbon monoxide and acetone as raw materials,via acetone cyanohydrin route;makes the simple economic comparison between the concept design of Chem.

描述了日本三菱瓦斯化学公司以甲醇、一氧化碳和丙酮为起始原料，经丙酮氰醇制取甲基丙烯酸甲酯的新工艺以及化学系统公司的概念设计流程与传统丙酮氰醇工艺的简单经济比较。

For developing an immunoassay for multiple residues of pyrethroid pesticides, the hapten N-2- carbanmoyl-(3"-phenoxyphenyl) methyl 3-(2"-Cldoro-3",3",3"-trifluoropropenyl)-2, 2-dimethylcyclopropane- carboxylate was synthesized from cyanohydrin and 3-(2"-Chloro-3",3",3- trifluoropropenyl)-2, 2-dimethylcyclopropanecarboxylic acid via hydrolysis and esterification. The synthesis of the hapten was foundation of preparaing anti- cyhalothrin polyclonal antibodies.

为了制备对单一拟除虫菊酯高特异性的抗体，以菊酸和氰醇为起始原料，通过水解、酯化反应合成了半抗原N-2-氨甲酰-(3-苯氧基苄基)甲基-3-(2-氯-3，3，3-三氟丙烯基)-2，2-二甲基环丙烷羧酸酯，为进一步制备抗三氟氰菊酯的特异性抗体奠定基础。

To establish gas chromatography method for determination of methyl cyclohexane in workplace air.

目的 建立工作场所空气中甲基环己烷的气相色谱测定方法。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？