1943年4月,瑞士科学家阿尔伯特·霍夫曼不小心在指尖粘了一点麦角酸二乙基酰胺,从而进行了一次意料之外的心灵之旅。
Swiss scientist Albert Hofmann took an unexpected journey of the mind in April 1943 when he accidentally absorbed one of his chemical discoveries, lysergic acid diethylamide, through his fingertips.
托纳博沙是一种抑制CSD的二乙基溴乙酰胺间隙结合阻滞剂并曾被认为是一种能防止偏头痛的的新化合物。
Tonabersat is a neuronal gap-junction blocker that inhibitsCSD and was once considered a promising new compound to preventmigraine attacks.
本方法适用于工作场所空气中二乙基甲酮的浓度测定。
The method is compatible with concentration detection of diethyl ketone in the air at a workplace.
本文观察了用日本血吸虫与二乙基亚硝胺诱发家兔肝癌的实验结果。
This paper reported the results of the experimental liver carcinoma induced by Schistosoma japonicum and diethylnitrosamine(DEN)in rabbits.
一般的防腐剂对水晶结构是有麻烦的,特别是乙二胺四乙基二钠。
Preservatives in general are troublesome to crystalline structures and especially disodium EDTA.
在二乙基亚硝胺(DENA)诱发大鼠肝癌过程中,维生素k依赖性羧化酶活性呈现先降低、后升高的现象。
During hepatocarcinogenesis induced by diethylnitrosamine (DENA) in rats, a period of decreased vitamin K-dependent carboxylase activity was observed followed by an increased period.
N二乙基苯胺的存在会减少界面蒽。
The presence of N, Ndiethylaniline will decrease its content at the interface.
该方法简便、快速、准确,适用于聚氯乙烯塑料原料及其制品中己二酸二(2-乙基己基)酯的测定。
This method was of simple, speed, accurate which was suitable to the determination of di(2-ethyl hexyl) adipate in polyvinyl chloride plastics materials and products.
以锌为催化剂由乳酸的低聚物裂解制得单体丙交醋,再由二乙基锌引发开环聚合得到高分子量的聚乳酸。
With the Zinc as the catalyst, lactide monomer was obtained by decomposition of low polymer. With the zinc diethyl as the catalyst, the lactide was polymerized to Poly(DL-lactic acid).
目的:观察硒对二乙基亚硝胺(DEN)诱发大鼠肝癌的影响。
Objective: to observe the inhibitory effects of se on diethylnitrosamine (DEN) induced hepatocarcinogenesis.
通过相对应的酯,合成苯基乙基丙二酸并经红外光谱对其进行初步表征。
Ethyl phenylmalonate was synthesized to pass through the diethyl ethylphenylmalonate, and initially characterized by infrared spectrum.
采用萃取法,用二乙基二硫代氨基甲酸钠测定茶叶中可溶性微量铜的方法。
To Survey and determine the solubility microcopper in tea with sodium diethyldithiocarbamape by means of Extraction.
目的比较再生肝和正常肝对二乙基亚硝胺(DEN)启动作用的敏感性。
Objective To compare the sensitivity of carcinogenic initiation effect of regenerated liver with normal liver induced by diethylnitrosamine (DEN) in rats.
十六烷二甲基苯氧乙基溴化铵的乳化能力、起泡力和泡沫稳定性都比较弱,具有一定的消泡和抑泡作用。
The emulsibility, producing bubble ability and the foam stability for PDPB are weaker, and it has definite effect on disappeared and restrained bubbles.
结果共鉴定了22个成分,占总峰面积的99%,而其中邻苯二甲酸乙基己基酯占87%。
Results 22 compounds were identified and was 99% of the total peak area, in which, the Phthalic acid mono - (2-ethylhexyl) ester was 87%.
应用一氯二乙基铝和苄基氯催化剂体系进行了丁苯橡胶的阳离子环化反应。
Styrene butadiene rubber (SBR) was cyclized with the aid of cationic catalyst system based on diethylaluminum chloride(Al) and benzyl chloride(RCl).
以二乙基苯为代表,通过详细的热力学计算,探讨了不同反应条件对二乙苯与苯烷基转移反应平衡的影响。
Effects of reaction conditions on reaction equilibrium of transalkylation of diethylbenzene and benzene were investigated through detail thermodynamics calculation, with diethylbenzene as sample.
本文介绍了一种用环氧乙烷生产羟已基乙二胺的新技术,列举了羟乙基乙二胺的性能及应用范围。
A new technology to produce hydroxy ethyl ethylene diamine using ethylene oxide is introduced in this paper. Its properties and application fields are also listed.
本组对二乙基亚硝胺所诱导的大鼠原发性肝癌组织中的组氨酸酶活性及酶蛋白表达进行了研究。
The catalytic activity of histidase and the expression of the enzyme protein were investigated in rat hepatomas induced by diethylnitrosamine.
运用DPD (N, N -二乙基对苯二胺)分光光度法,建立了快速分析制水工艺过程中各种氯胺含量的方法。
A rapid analysis method for all forms of chloramines in water production process was developed by using n, N-Diethyl-p-phenylenediamine (DPD) spectrophotometry.
合成了以羟基封端的脂肪族聚碳酸酯-聚乙基醚碳酸酯二醇(PEECD),并用于环氧(EP)树脂的增韧。
One kind of hydroxyl - terminated aliphatic polycarbonate, i. e. poly(ethylene ether carbonate) diol(PEECD) was synthesized and used to toughen epoxy resin (EP) .
采用静态阻垢法和极化曲线实验的方法,对羧乙基硫代丁二酸进行了阻垢、缓蚀性能的测定。
The corrosion-scale inhibition property of carboxyethylthiosuccinic acid was evaluated by the static scale inhibition method and polarization curves experiment.
本文研究了钴在二(2—乙基己基)磷酸(DEHPA)有机相及硫酸盐水相中的分配,报道了平衡的热力学分析。
The distribution of cobalt between di-2-ethylhexyl phosphoric acid (DEHPA) and an aqueous phase of sulfates was studied. A thermodynamic analysis of the equilibria was reported.
目的探讨番荔枝总提取物对二乙基亚硝胺(DEN)诱发大鼠肝癌的防治作用。
Objective To investigate the effect of Annona glabra extract(AGE) in preventing DEN-induced Hepatocarcinogenesis in Rats.
结果表明,十六烷基二甲基(2-亚硫酸)乙基铵具有较好的生物降解性,与常用阻垢缓蚀剂复配有协同增效作用。
The experimental result showed that hexadecylldimethyl(2-sulfite)ethyl ammonium had good biodegradability and synergistic effect by mixing with scale and corrosion inhibitor.
利用氨基乙腈及丙烯腈的亲核加成、氢化反应合成了一种新的不等臂有机多胺化合物2 -氨基乙基-二(3-氨基丙基)胺。
A new inequilateral organic polyamine, 2-aminoethyl-bi(3-aminopropyl)amine, was synthesized by the additional and hydrogenation reaction of aminoacetonitrile with acrylonitrile.
本文观察了二羧乙基锗倍半氧化物对三种大鼠胃溃疡模型的疗效。
The therapeutic efficiency of carboxyethyl germanium sesquioxide(CEG) on three kinds of gastric ulcer model is presented.
一家中国公司将添加剂标注成甘油,这是一种安全的甜味剂和浓缩剂。然而实际是确实二次乙基乙二醇,它作为一种廉价的替代品而被广泛用作汽车的防冻剂。
Chinese company had identified the additive as glycerin, a safe sweetener and thickener. But it was really diethylene glycol, a low - cost substitute commonly used in automobile antifreeze.
研究了乙基硅油与癸二酸酯调和油的IR基团振动频率的变化,发现乙基硅油与癸二酸酯间存在着相互作用。
Changes of IR group vibrational frequency in the blends of diethyl silicone and sebacate were studied in this paper.
考察了不同反应条件下的反应结果,结果表明,在最佳条件下对-硝基苯基苄基醚和2 ,4-二硝基苯基乙基醚的收率分别为84.9%和72 .3 %。
Various factors that affect the condensation are discussed. The results show that the yield of 4-Nitrophenyl Benzyl Ether is 84.9 %, and the yield of 2,4-Dinitrophenyl Ethyl Ether is 72.3 %.
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