氨基甲酸

Trace Hg in aqueous solution was preconcentrated by on-line formation of mercury diethyldithiocarbamate complex and adsorption of the resulting neutral complex on the inner walls of a PTFE knotted reactor.

天然水样中痕量的Hg通过FI在线形成中性的汞-二乙基二氨基甲酸络合物并吸附在聚四氟乙烯管编制的KR的内壁上实现预富集。

Reduction of N-substituted-4-nitrophthalimides(1)to the corresponding amines(2)was performed in hydrochloric acid at 40 ℃ using stannous chloride as reduction agent, yielding produc...

氮气保护条件下，2与乙醇在固体光气作用下生成(2 取代 1，3 二酮 2，3 二氢 1H 异吲哚 5 )氨基甲酸乙酯(3)，3的产率为67%～92%。各化合物的结构均经1H NMR、IR、元素分析和FAB MS证实。

The dependence of the radiolabeling yield of ~99mTcO-NIET and 99mTcN-NIET on pH, temperature, ligand concentration, the amount of added stannous chloride, and so on was screened by the normal procedure.

合成了一种新的氨荒酸类化合物，2-（4-硝基咪唑）-乙基二硫代氨基甲酸钾，研究了影响99mTcO-NIET以及99mTcN-NIET标记率的相关因素。

This product alone curing slow, usually thiuram disulfide carbamate, aldehyde amines, guanidine type accelerator and used, is an excellent anti-G-CR scorch agents, plasticizers and delay agent .

本品单独使用硫化速度慢，通常和秋兰姆、二硫化氨基甲酸盐、醛胺类、胍类促进剂并用，是G型氯丁胶的优良抗焦烧剂、增塑剂和延迟剂。

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。

In the chloralose-urethanized or curarized rabbits,infusion of saline or blood into the right auricle in amount of 8—10 ml/kg at the rate of 0.5—1.0 ml/sec induced bradycardia and hypotension.

一在氯醛糖和氨基甲酸乙酯麻醉的兔或未麻醉的箭毒化兔，右心房内输液(输入量为8—10毫升/公斤，输入速度为0.5—1.0毫升/秒)，可规律地引起心率减慢和动脉血压下降。

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。

In March, though, the company received FDA approval (the first ever for a condom, according to Female Health Company vice president Jack Weissman, who says male condoms were "grandfathered" in by the FDA) for a new and improved condom, the FC2, which is made of thinner polyurethane than the earlier model, so it conducts body heat and sensation better -- and rustles less.

三月，该公司得到了FDA对其改良后的新产品FC2型女用避孕套的认证（按照女性健康公司副总裁杰克。威尔斯曼的话来说，这是第一次为避孕套做出此种认证。他以前称男用避孕套是该类产品的&鼻祖&）。与以前的产品相比，FC2型女用避孕套是由更薄的聚氨基甲酸酯做成的。因此该产品在传导体温和感觉上效果更好。噪声也更低。

This paper reviews the kinetic mechanism of acetylcholinesterase, illustrates the principle and application of the kinetic parameters such as Michealis-Menten affinity constant Km, maximum reaction velocity Vmax, turnover number Kcat, bimolecular rate constant Ki, affinity constant of the inhibitor for the a ctive site Ka, phosphorylation or carbamylation rate constant K2, and discusses the potential practical application benefiting from the study of the kinetic analysis.

综合评述了AChE的动力学机制的发展状况，着重介绍了米氏常数Km、最大反应速率Vmax、转换率Kcat、双分子速率常数Ki、抑制剂化合物对AChE活性部位的亲和力常数Ka、磷酸化或氨基甲酸化速率常数K2，这些动力学参数的原理及其应用状况，探寻了动力学机制将带来的实际应用。

Methyl-l, 3-oxazine-2,4-dione are prepared from ethyl acetoacetate and ethyl carbamate at 140 for 6h, catalysted by zinc acetate, giving to 48.8% yields which is 33% more than the literature value.

选用醋酸锌作催化剂，使乙酰乙酸乙酯与氨基甲酸酯在140℃反应6h，合成6-甲基-1，3-噁嗪-2，4-二酮，产率达48.8％，较文献报道值高出了33％。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。