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乙酰胺

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Results] LD50 for acephate by intragastric administration is 823 mg/kg in rats.

结果]乙酰甲胺磷大鼠经口LD50为823 mg/kg。

The free fatty acids were extracted with petroleum ether and were separated on silicon gel column chromatography. The ethyl acetate-soluble lipid fraction and water-soluble lipid fraction were subjected to hydrochloric acid-catalyzed methanolysis, then were extracted with petroleum ether, respectively.

用石油醚提取低极性组分,经硅胶柱层析分离得到游离脂肪酸;用乙酸乙酯提取酯溶性神经酰胺及其衍生脂类,提取物和残余的水溶性脂类分别经盐酸甲醇解,水解产物再用石油醚提取。

Singing behavior; higher vocal center; caudal nucleus; ventral hyperstriatum; hippocampus; song-control nucleus; song nuclei; area X; melatonin; gamma-aminobutyric acid; glutamic acid decarboxylase; vocal control circuitry; frequency sensitivity; organ of Corti; auditory feedback; neural plasticity; seasonal plasticity; neostriatum; anterior forebrain pathway; lateral magnocellular nucleus; anterior neostriatum; lMAN nucleus; medial nucleus; dorsolateral thalamus; robustus archistriatalis; robust nucleus; archistriatum; song motor control nucleus; vocal motor system; gila cells; nonlinear oscillatory dynamics

歌唱行为;较高级的发声中枢;尾部核;腹侧上纹体;海马;鸣唱控制核团;鸣唱核;X区域;N-乙酰-5-甲氧基色胺;γ-氨基丁酸;谷氨酸脱羧酶;发声控制回路;频率灵敏度;柯替氏器;听觉反应;神经可塑性;季节可塑性;新纹状体;前脑前端路径;侧面大细胞核群;前部新纹状体;lMAN核;内侧核;背外侧丘脑;古纹状体粗核;健康的核;原纹状体;鸣声运动控制核;发声运动系统;毒蜥细胞;非线性振动动力学首页上一页共有 12 条记录,本页从第 11 到第 12 条。

Whenthey reacted with organolithium reagents,α-trifluoromethylketimines can be prepared.

用N-三氟乙酰基氨基膦盐和锂试剂作用后,〓锅法合成了α—三氟甲基酮亚胺。

We researched the high molecular polyether,polyamide hot melt adhesive, 2-phenoxy ethanol phenyl cellosolve,propylene glycol phenylate,etc,which have passed appraisal of the provincial science and technology achievement.the company gains higher economy profit after putting into production.

公司设有专业科研机构从事新产品的开发研制工作。先后研制开发成高分子聚醚,聚酰胺热熔胶,乙二醇苯醚,丙二醇苯醚等十多项新产品,均通过省级科技成果鉴定。

Synthesis of Organic Pigmet Intermidiate N, N'- bisacetylaceto - 2 - methyl - 5 - chloro -1,4- Phenylenediamine

有机颜料中间体N,N′-双乙酰乙酰基2-甲基-5-氯代-1,4-苯二胺的合成

The electrolyte, which is different from the conventional electrolyte of the ethylene-boric acid system, consists of ethylene, dimethylformamide, ammonium hexandioic and polyhydric alcohol but water.

它是以乙二醇和二甲基甲酰胺为主溶剂,以己二酸铵为溶质,以多元醇为热稳定剂的非水系工作电解液。本文对新型工作电解液和一般工作电解液进行了比较。

Selecting acrylic acid、acrylamide and 2 propenoic acid 2 hydroxyethyl ester as the monomers of copolymerization,a water absorbent resin used for condensing protein solution has been synthesized by means of water solution polymerization.

以丙烯酸、丙烯酰胺及丙烯酸羟乙酯等为单体合成了浓缩蛋白质溶液用吸水树脂,其最大浓缩倍率可达 4。

With the in-situ single-stage self-metallization protocol,surface-silvered polyimide film has been prepared using pyromellitic dianhydride/ 4,4\'-oxydianiline-based polyimide as the matrix and (1,1,1-trifluoro-2,4-pentadionato)silveras the silver precursor.

在原位一步自金属化法中,以均苯四甲酸酐/4,4\'-二胺基二苯醚基聚酰亚胺为基体,以三氟乙酰丙酮银作为银的母体制备出了表面金属化的聚酰亚胺银复合薄膜。

Methods The determination was carried out over a Symmetry C18 column at 25℃. Methods tetrahydrofuran: 0.2% citric acid (14∶1∶85) was used as mobile phase at a velocity of 1 ml.min-1 and the detection wavelength was set at 360nm. ResultsRutin was found in SFE extract of Sparganium Stoloniferum.

方法在聚酰胺膜上点样,以80%乙醇作为展开剂鉴别芦丁,采用Symmetry C18色谱柱,以乙腈-四氢呋喃-0.2%枸橼酸(14∶1∶85)为流动相,柱温25℃,在流速为1.0 ml.min-1,360 nm的检测波长下,测定芦丁含量。

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