二乙胺

The main contents are:(1) The polarized laser Raman spectra of acetone, methyl alcohol, alcohol, ethylene glycol, formamide, acetonitrile, acetic acid, Chloroform, Methylene chloride, and Bromoform are measured in the experiment.(2) The depolarization ratio of Raman shift in the measured spectrum are

主要的结果有：得到了丙酮分子9条喇曼谱线、甲醇分子5条喇曼谱线、乙醇分子9条喇曼谱线、乙二醇分子7条喇曼谱线、甲酰胺分子8条喇曼谱线、乙腈分子8条喇曼谱线、乙酸分子8条喇曼谱线

The influences of different surfactants (sodium dodecyl sulfate, sodium cholate and sodium deoxycholate), different electrolytes (sodium phosphate monobasic, sodium tetraborate and 3-cyclohexylamino-1-propane sulfonic acid), buffer pH and organic modifiers on the determination of sialic acid were studied.

其次建立了一种测定唾液酸的在线富集CZE法，该方法用40 mM磷酸二氢钠为缓冲溶液电解质，通过将样品溶解在乙腈：水=2：1的样品基体中，进样时间增加到100 s来达到样品富集的效果，并考察了样品基体中乙腈浓度和进样时间对富集效果的影响，研究了用硼砂或3-环己胺-1-丙烷磺酸作为电解质、缓冲溶液pH值和有机修饰剂的加入对唾液酸检测的影响。

Experimental research on the desulfurization of flue gas simulated with 0.3 mol/L amine solutions prepared with ethanolamine, ethylenediamine and so on.

以醇胺和乙二胺为原料，配制0.3 mol/L的水溶液，用于实验室模拟烟气脱硫的研究。

Ethylenediamine and benzylamine are insufficiently soluble at, e.g.,-40°F.

乙二胺和苯甲胺，如在－40°F是不完全溶解的。

The absorption capacity of the ethylenediamine solution for SO2 was 455 mg/L, much higher than that of the alcohol amine solution.

乙二胺溶液对SO2 的吸收容量为455 mg/L，远远高于醇胺类吸收液。

In this research, two novel compounds in which alkylenedithiomethylene Malonic acid act as the main coordination agents and the compounds containing N atom (such as pyridine, Phenanthroline Ethanediamine and 4,4'-Bipyridinyl) act as the associating coordination agents have been synthesized by the means of solution and solid-liquid diffusing reactions. 9 coordination complexes and polymers have been designed and synthesized in which the transition metals Cu and Zn acted as the centre ions. These compounds have been characterized by X-ray single crystal diffraction analysis, and some properties of them have been tested and analyzed.

本论文设计合成了两种结构新颖的含有二硫缩烯酮结构的丙二酸类化合物，以此为主要配体，以含氮化合物(吡啶、邻菲罗啉、乙二胺和4，4'-联吡啶)为辅助配体，采用常规溶液合成和固-液相扩散等方法，设计合成了9个过渡金属Cu和Zn离子配合物和配位聚合物，采用单晶X-射线衍射等技术对晶体结构表征，并对其部分性质进行了测试和分析。

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。

Xi′an Jiaotong University, X i′an 710049,China）Abstract : A light-yellow solid could be formed by the rea ction of ethylene diamine and dibutyl phthalate as epoxy additives. S olidification is maintained while fragility is reduced.

在环氧树脂粘接实践中，发现添加剂乙二胺与邻苯二甲酸二丁酯会反应生成淡黄色固体，它对环氧树脂仍有固化和降低脆性的作用。

The volumetric flask is then filled with a stock solution consisting of 0.010 M HNO3 and 0.001% disodium EDTA dihydrate provided by the TA.

然后用助教提供的，含有0.010M HNO3和0.001%二水合乙二胺四乙酸二钠的储备液，注满容量瓶。

In this study, Japanese cedar, Ma bamboo and Makino bamboo were liquefied in polyethylene glycol/glycerol co-solvent with H2SO4 or HCl as catalyst. The liquefied woody materials were blended with PMDI (4,4'-Diphenylmethane diisocyanate;MDI) to prepare the PU foams. The effects of preparation conditions of PU resin on the properties of PU foams were investigated.

中文摘要本研究将柳杉(Cryptomeria japonica； Japanese cedar)、麻竹(Dendrocalamus latiflorus； Ma bamboo)及桂竹(Phyllostachys makinoi； Makino bamboo)等木质材料以聚乙二醇及丙三醇之混合液为溶剂，H2SO4及HCl为催化剂进行液化处理，并将其液化木质材料与4，4'-二苯甲烷二异氰酸酯反应制造聚胺基甲酸酯发泡体，探讨PU树脂调配条件对PU发泡体性质之影响。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。