三乙胺

The poly grafted starch copolymer was synthesized by the reaction of glycolide and starch in dimethyl sulfoxide with triethylamine as catalyst.

摘要以乙交酯和淀粉为原料，三乙胺为催化剂，在二甲基亚砜介质中合成了聚羟基乙酸接枝淀粉共聚物。

The linear ranges of the calibration curves for lycorine,lycoramine and galanthamine were 5.0-400 mg/L,respectively.

采用三乙胺水溶液(pH 9.0)-乙腈-甲醇作为流动相对石蒜碱、力可拉敏和加兰他敏进行HPLC测定，方法的线性范围为5.0~400 mg/L，检出限分别为5.0、5.1、10.2 ng，RSD分别为2.2%、5.7%和4.4%。

The linear ranges of the calibration curves for lycorine, lycoramine and galanthamine were 5.0-400 mg/L, respectively. Their detection limits were 5.0, 5.1 and 10.2 ng, respectively and the RSD were 2.2%, 5.7% and 4.4%, respectively.

采用三乙胺水溶液(pH9.0)-乙腈－甲醇作为流动相对石蒜碱、力可拉敏和加兰他敏进行HPLC测定，方法的线性范围为5.0~400mg/L，检出限分别为5.0、5.1、10.2ng， RSD分别为2.2%、5.7%和4.4%。

Hypersil of ODS-C18 was used with acetonitrile-0.01mol/L monobasic potassium phosphate-triethylamine phosphoric acid8:92:0.4:0.3） as mobile phase.

色谱柱：依利特 Hypersil ODS柱4.6 mm×250mm，5μm），流动相：乙腈-0.01mol/L磷酸二氢钾溶液－三乙胺－磷酸（8 ： 92 ： 0.4 ： 0.3）。

Methods The HPLC System consisted of Agilent Plus C18 column, acetonitrile-buffer(0.01mol · L-1 monobasic potassium phosphate, contained 0.1% triethyl amine, pH 6.8 )(70∶30) as mobile phase with detection wavelength 282nm.

采用 Agilent Plus C18柱；以0.01mol · L-1磷酸二氢钾溶液（含0.1%三乙胺，用磷酸调节 pH 值至6.8）-乙腈（30∶70）为流动相；检测波长：282nm 。

The thermal property studies indicate that the mass loss of compound B was 54.39% at 242.2~750℃, and when the temperature was 1000℃, there was 25.11% char residue left, which showed that the title compound has a good thermal stability and char forming capability. Using acetonitrile as the solvent instead of trichloromethane or 1, 2-dichloethane gave higher yield. During the synthesis, the yield was very low when triethylamine was used as acid acceptor alone, and when a little amount of 4-dimethylaminopyridine was added at the same time, the yield could be 81%.

结果表明，所合成的化合物B的结构与预期的结构一致；热性能研究表明，化合物B在242.2~750℃质量损失为54.39%，1000℃时仍有25.11%的炭残渣，显示出优异的热稳定性和成炭性；在相同反应条件下，用乙腈作为溶剂的反应产率比使用氯仿和二氯乙烷为溶剂的高，并且在合成过程中，单独使用三乙胺作为缚酸剂时产率很低，而当同时加入少量4-二甲氨基吡啶时，产率可达81%。

It was found that the titled amine in which although dimethyl aniline and triethyl amine both were contained, possesses less efficiency of photoinitiation while it was composed with ketone as an initiated system.

发现该特殊的胺类化合物虽包括二甲基苯胺和三乙胺两个部分，但它和酮类相组合形成的光引发体系只有较低的尤引发速率。

acetyl chloride, a novel fluorescence derivatization reagent, has been developed for the determination of sterols and stanol .

采用荧光衍生化试剂2-(9-咔唑)乙酰氯，对天然产物谷甾醇、豆甾醇、菜油甾醇及谷甾烷醇的柱前衍生化条件，包括催化剂的种类、反应温度、衍生化时间等进行了考察，结果表明：催化剂选用三乙胺，反应温度80℃，时间20min，衍生产物具有恒定的最大检测响应值。

Department of Chemical Pharmacology, Capital University of Medical Science, Beijing 100054, ChinaAbstract: A reversedphase high performance liquid chromatographic method was developed for the simultaneous quantitative determination of caffeine, dapsone and chlorzoxazone. The operation was carried out on a C18 column (250 mmX4.6 mm i.d., 5.0 μm) with the mobile phase of acetonitrilephosphate buffer including 0.02 mol/L KH2PO4 and 0.02 mol/L (C2H53N, pH 6.5(25:75 in volume ratio).

用反相高效液相色谱同时测定血清中咖啡因、氨苯砜、氯唑沙宗探针药物的质量浓度，以乙腈磷酸盐缓冲体系(含 0.02 mol/L的磷酸二氢钾和0.02 mol/L的三乙胺，pH 6.5)(体积比为25：75)为流动相，以安替比林为内标，经C18柱(250 mmX4.6 mm i.d。， 5.0 μm)分离，紫外检测器检测，使3种探针药物得到较好的分离，并且在有效血药浓度范围内线性良好。

In this research, liposoluble chlorogenic laurate was synthesized by the acylation with lauroy chloride in the existence of alkali catalyst in non-water phase, and yellowish CGL powders with a yield of 81.24% were obtained under the optimal synthesis conditions determined via single-factor tests and orthogonal experiments, that is, carrying out the acylation at 35℃ for 8h with a n:n: n ratio of 1:1:1.5 and with dimethylformamide as the solvating agent and the thinner.

文中对绿原酸进行了改性，即在碱性催化剂催化的条件下使其与月桂酰氯进行非水相的酯化反应，得到了脂溶性的绿原酸月桂酸酯。经过单因素及正交试验，确定了最佳合成条件为：以N，N-二甲基甲酰胺作为溶解、稀释剂，绿原酸／月桂酰氯／三乙胺的摩尔比为1：1：1.5，温度控制在35℃，反应时间8h。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。