查询词典 tertiary amine

The liberated freebase methamphetamine which seperates is solvent extrated with two, 75-100 ml ether portions and the ether/amine solution is first washed with 50 mls of distilled water and the ether/amine solution dried with anhydrous sodium carbonate.

The yield is 80 - 88%解放freebase分隔甲基安非溶剂extrated是两个， 75-100毫升醚部分和乙醚/胺的解决办法是第一次洗了50英里的蒸馏水和乙醚/胺溶液干燥无水碳酸钠。

It was shown that the absorption peaks of amine and amide groups of gelatin were shifted in HDPE/PE-g-MAH/Gelatin blends because of the reaction of PE-g-MAH with gelatin. The addition of PE-g-MAH made the increase of HDPE glass transition temperature. The compatibilizing effect of PE-g-MAH was due to the crystal compatibility produced by forming the co-crystals of HDPE, PE-g-MAH and PE-g-MAH-g-gelatin. The blends of EAA and gelatin were prepared by melting process and the compatibility of the blends was also studied. The FTIR results showed that absorption peaks of amine and amide groups of gelatin were shifted in EAA/Gelatin blends.

通过红外光谱分析、HAAKE流变分析、抽提等实验证明：共混物中明胶的氨基、酰胺基团吸收峰峰位发生了明显的变化；在熔融共混过程中，随着温度的提高，平衡扭矩增大；明胶与PE-g-MAH发生了反应形成PE-g-MAH-g-明胶接枝共聚物，而且随着PE-g-MAH用量的增加，形成接枝共聚物的量也提高；SEM的实验结果表明，在明胶的表面确有接枝物形成；通过DMA测试共混物的玻璃化转变温度，发现两组分的玻璃化转变温度差值减小，二者的相容性提高，实现了共混体系的自增容。

Toothpaste is the main component of talcum powder, and mint flavors, such as amine leaves, play a role on the glans penis is inside the leaf, such as mint or amine.

牙膏主要成分是滑石粉、香精和薄荷、胺叶等，对龟头起到作用的就是里面的薄荷或胺叶等。

A new type of polyaspartic esters secondary amine called PAE-b was prepared from prime amine 4,4'-methylenebis and dialkyl maleates via a Michael Addition Reaction.

通过伯胺4，4'-二氨基环己基甲烷与马来酸二乙酯的Michael加成反应，合成1种新型聚天门冬氨酸酯仲胺。

This thesis took the complexes of cupric or cuprous salts with small molecular amines to mimic oxidoreductases. The coordination environment of the active centers of the catalysts can be modified by changing the ratio of copper/amine. The oxidation of naphthols and 2-naphthylamine under the copper amine complexes led to some novel reactions and products.

本文利用简单易得的小分子有机胺与铜盐制成络合物，模拟氧化还原酶，通过改变铜胺配比等因素来调整催化剂活性中心的配位状态，从有机合成的角度研究其对萘酚类和2-萘胺等底物的氧化性质和催化氧化性质，发现了一些新颖的仿生氧化反应和产物。

LX series desulfurizers are synthesized by secondary amine, formaldehyde and at least oneactive hydrogen compound (amine, alcohol, phenol, et al.), which is an aminomethylationreaction. This synthesis route of desulfurizers has the advantage of moderate reaction conditionand inexpensive raw material.

采用仲胺、甲醛和带有活泼氢的化合物进行缩合反应合成LX系列脱硫剂，此合成路线具有反应条件温和，原料价廉易得的特点。

The results showed: when TLC solvent system was: chloroform - methanol - diethyl amine = 90:9:1, alkaloids from lotus leaves were well isolated, and five components were isolated and identified by spraying Dragendorff reagent. The optimal conditions of HPLC solvent system were: methanol- water - diethyl amine = 75:25:0.0125. Under the conditions, components of alkaloids from lotus leaves were separated very well, and ideal RP-HPLC peaks were obtained.5、Methods of High Speed Counter Current Chromatography and preparative High Performance Liquid Chromatography applied to identify and purify alkaloids from lotus leaves were set up. When solvent system of HSCCC was: chloroform - methanol - water (pH=4.00)= 4:3:2, speed of chromatogram was 700rpm, flow speed of the mobile phase was 2mL/min, four pure components relatively were attained by isolation and purification.

结果表明：薄层层析溶剂系统为氯仿：甲醇：二乙胺=90：9：1，使荷叶中的生物碱达到了较好的分离效果，并用改良的碘化铋钾试剂喷雾显色，共分离鉴别出了5种荷叶生物碱；分析型HPLC分析检测的较优溶剂系统为甲醇：水：二乙胺=75：25：0.0125，使荷叶生物碱的各个组分达到了基线分离，并获得了较好的峰形。5、建立了高速逆流色谱和制备型HPLC技术分离纯化荷叶生物碱的具体方法。H(来源：ABC46论文网www.abclunwen.com)SCCC法在溶剂系统为氯仿：甲醇：pH4.00的水=4：3：2，色谱仪转速为700rpm，流动相流速为2mL／min的条件下，分离纯化得到了4个纯度较高的化合物。

The primary amine of DETA is closed by ethyl methyl ketone to reduce the reactivity of –NCO group and –NH2 group and smooth the reaction process. The mole ratio value of –NH2/-NCO should be 2.2 to make sure that –NCO group is completely closed in by –NH2 group and amine terminate compound is prepared. The reaction temperature, reaction time and the way of adding raw materials to vessel are discussed. Structure and performance of the resin are analyzed with infrared ray spectrum.

用甲乙酮封闭DETA分子中的伯胺基团，降低-NCO与-NH2的反应活性，使反应平稳进行；研究投料比和投料方式对反应的影响；为确保生成以氨基封端的聚氨酯树脂，并将游离的异氰酸酯反应完全，最佳原料投料比控制在-NH2/-NCO=2.2；确定合理的合成条件如反应温度、时间等；利用红外光谱分析端氨基聚氨酯树脂的结构与性能。

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

The influence of reaction temperature and time to production rate of tertiary amine was discussed;and the infrared attribute to Dimethyl ammonium allyl chloride was also carried out.

讨论了反应温度和时间间隔对叔胺产率的影响，并对二甲基二烯丙基氯化铵进行了红外表征。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48