三甲胺

Choline chloride is one of B race vitamins and is synthesized by oxirane,hydrochloric acid and trimethylamine.

氯化胆碱由环氧乙烷、盐酸与三甲胺为原料合成，是B族维生素之一，是一种不能替代的饲料添加剂，市场上存在造假掺杂行为，对于各种掺杂行为进行分析识别，并提出鉴别方法

In this paper, varied factors which influenced the synthesis of epoxypropyl trimethyl ammonium chloride by the reaction of epichlorlhydrin with trimethylamine were studied.

研究了由环氧氮丙烷与三甲胺反应合成环氧丙基三甲基氮化铵沥青乳化剂中间体的各种影响因素。

Beet alkali was synthesized from trimethylamine and chloroacetic acid .

以三甲胺及一氯乙酸为原料合成甜菜碱。

It was selected the major components of the odor from aquatic feed factory,and hydrogen sulfide,ammonia and trimethylamine were taken as the target pollutants.

以水产饲料恶臭废气中的主要组分H2S、NH3和三甲胺为研究对象，采用生物填料塔进行脱臭的试验研究，考察运行生物填料塔的主要影响因素及污染物净化处理效果。

The optimal technical conditions were resulted when lignin 5 g, epichiorohydrin 14 ml, trimethylamine solution 30mL, reaction temperature 60℃ and time 3.5 h.

得到较佳的反应条件为：木质素5g，环氧氯丙烷14 mL，三甲胺溶液（体积分数33%）30 mL，反应温度60℃，反应时间3.5h。

Its mechanism is as follows: 1, Qu Xing Xie danzhong smell of fish in the substance is mainly trimethylamine N-oxide, it can dissolve in ethanol, in the heated cooking wine, its smell has been taken away with the alcohol evaporates.

其机理如下：1，在物质Qu邢希阿鱼danzhong三甲胺的气味，主要是氮氧化物，可溶于乙醇，在激烈的料酒，它的气味已被带走的酒精挥发。

Chloro-2-hydroxypropyl trimethylammonium chloride was synthesized by using trimethylamine hydrochloride and epichlorohydrin as the raw materials and anhydrous as solvent.

以无水乙醇作溶剂、三甲胺盐酸盐和环氧氯丙烷为原料合成了3-氯-2-羟丙基三甲基氯化铵，探索出最佳合成条件为：n∶n为0.95∶1，反应温度为40~50℃，反应时间为30m in，所得产品质量分数大于98%，收率达90%。

Trimethylamine hydrochloride in water, and dilute quantitatively, and stepwise if necessary, to obtain a solution having a known concentration of 500μ g per mL.

标准溶液－精确称量一定的盐酸三甲胺溶于水中，稀释获得一个500μ g per mL 浓度的已知溶液。

Self-catalyzed characteristic of choline chloride based on kinetics is further proved by studying the effect of reactant concentration during the process of synthesis of choline chloride from the chloroethanol and trimethylamine.

通过研究由氯乙醇和三甲胺反应合成氯化胆碱过程中反应物浓度的变化规律，进一步从动力学角度验证了氯化胆碱的自催化特性。

Common Pacific white shrimp Juveniles with body weight of (1.01±0.05) g were fed diets supplemented with trimethylamine oxide at a level of 0, 2, 4, 6 and 8 g/kg respectively for 8 weeks after a week of temporary feeding with basal diets.

选用经基础日粮暂养1周后尾均初始体重为(1.01±0.05)g的健康南美白对虾为试验动物，以基础日粮为对照组，在基础日粮中分别添加2，4，6和8g/kg氧化三甲胺为试验组，每组均设3个重复，饲喂8周，研究TMAO对南美白对虾生长、养分消化率和消化酶活性的影响。

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。