氨基甲酸酯

N-substituted pyrroles are synthesized by reacting acetonylacetone with carbamic ester , catalysted by p-toluenyl sulfonic acid, heated at reflux temperature for 6h, collecting evolved water, giving to 75% yields, which is 26% more than the literature value.

以对甲苯磺酸为催化剂，用甲苯作溶剂，使2，5-己二酮与氨基甲酸酯在110℃反应6h，合成了5种氮取代吡咯衍生物，其中两种未见文献报道，反应产率均达到75％以上，比文献值高出了26％。

Methylene bis is an ashless antioxidation and EP additive for lubricant.

亚甲基双二烷基二硫代氨基甲酸酯为无灰型润滑油抗氧和极压多功能添加剂。

The research indicated, as a hydroperoxide decomposer, modified ashless dithiocarbamate possesses better antioxidation performance than phenol and amine antioxidants, which reveals the great application potential of hydroperoxide decomposer as antioxidant.

研究表明，作为氢过氧化物分解剂，改进的无灰氨基甲酸酯具有比胺类、酚类抗氧剂更好的性能，这显示了氢过氧化物分解型抗氧剂巨大的应用潜力。

Omeprazole racemate was resolved respectively by simulated moving bed chromatography and batch chromatography with the coated cellulose triphenylcarbamate as chiral stationary phase and ethanol containing 0.1% diethylamine as mobile phase.

用纤维素三苯基氨基甲酸酯涂敷型手性固定相和含0.1%二乙胺的乙醇溶液，研究了模拟移动床色谱和间歇色谱对奥美拉唑对映体的拆分。

At first, urea decomposed into isocyanic acid, which interacted with ZnO to form a relatively steady isocyanate species. Then propylene glycol reacted with isocyanate species to form hydroxypropyl carbamate, and the HPC lost ammonia to form PC.

结果表明，该反应是分步进行的，首先尿素分解生成氨气和异氰酸，异氰酸与ZnO作用形成异氰酸物种，在丙二醇的作用下生成中间产物羟丙基氨基甲酸酯，然后由HPC脱氨气生成PC。

Cellulose carbamate was synthesized in xylene as solvent with microcrystalline cellulose and urea as raw materials.

以微晶纤维素和尿素为原料，二甲苯为溶剂合成了纤维素氨基甲酸酯。

In this paper, the enantioseparation of naringenin was firstly studied by using CDMPC chiral stationary phase.

首次在纤维素三(3，5二甲苯基氨基甲酸酯)手性固定相上，对柚皮素进行了对映体分离研究。

Methods: To establish a rat model of pancreaticoduodenal transplantation with venacava endocrine drainage and enteric eccrine drainage. The recipient rats were introperitoneally injected with 15 mg/kg of proline dithiocarbamate in experiment group and with equal amount of normal saline in control group 30 minutes before transplantation.

建立大鼠腔静脉内分泌引流、肠道外分泌引流的动物模型，脯氨酸二硫代氨基甲酸酯组供体胰腺保存在ProDTC的UW液中，受体鼠于移植前30min腹腔注射ProDTC(15mg/kg)；对照组供体胰腺仅保存在UW液中，受体鼠腹腔注射等量生理盐水，分别于再灌注后第0、1、3、6、12、24h等时点，处死大鼠，取血后切取移植胰腺。

Methods: The pesticides were extracted with acetone and dichloromethane. The extract was warmed with water at 80℃, circumrotated and evaporated until it was nearly dry. Then it was cleaned-up by Envi-Carb column and Sep-Pak-NH2 column.

本法采用丙酮、二氯甲烷提取，40℃水浴旋转蒸发近干，以Envi-Carb柱和Sep-Pak-NH2柱净化，以气相色谱－质谱选择离子监测方式分析检测有机磷、有机氯、氨基甲酸酯和除草剂等32种农药残留。

For the determination of five carbamate pesticide residues by high performance liquid chromatography with gel permeation chromatography purification, sample was extracted with acetonitrile and purified with gel permeation chromatography. Methanol-water was used as the mobile phase by gradient elution, flow rate of 1.0mL/min, using a fluorescence detector and quantitating with external standard method.

凝胶渗透色谱-液相色谱法测定5种氨基甲酸酯类农药残留中，实验采用乙腈提取，凝胶渗透色谱柱对样品进行净化，以甲醇-水为流动相，进行梯度洗脱，流速1.0mL／min，荧光检测器检测，外标定量测定。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。