甲胺

New research shows pine bark extract balances stress hormones norepinephrine and dopamine.

新的研究显示，松树树皮提取物余额应激激素的去甲肾上腺素和多巴胺。

The Beckmann rearrangement of cyclohexanone oxime, phosphorus pentoxide (P_2O_5) and dimethyl formamide raction system into caprolactam was studied.

研究了以环己酮肟、五氧化二磷(P_2O_5)、二甲基甲酰胺组成的反应体系进行Beckmann重排制备己内酰胺工艺，考察了不同溶剂、催化剂用量、温度、浓度及水分含量对重排反应的影响。

The biogenic amines in test samples were extracted by 10% trichloroacetic acid and then derived with benzoyl chloride. The HPLC analysis for the samples were conducted as the following condition: mobile phase was a gradient elution program of methanol and water, the flow rate was 0.8 mL/min.

用10%的三氯乙酸提取样品中的生物胺，采用苯甲酰氯衍生处理后，以甲醇/水为流动相，进行梯度洗脱，流速0.8 mL/min，紫外检测器波长为254 nm。

The effect of reaction temperature,reaction time,materials ratio on the synthesis of piperidine alcohol benzoate ,hindered amine light stabilizer,from piperidine alcohol and benzoyl chloride by direct condensation were studied,and the proper technological conditions were given as follows:the reaction temperature is 95℃;reaction time is 4 h; the mole ratio of reactants,n∶n is 1∶1.4,the amounts of solvent is 40 mL(based 0.1mol piperidine alcohol),the arerage yield ...

王树清，高崇，苯甲酸哌啶醇酯HALS的合成工艺研究研究了以苯甲酰氯和哌啶醇为原料直接缩合合成苯甲酸哌啶醇酯受阻胺光稳定剂时反应温度、反应时间、原料配比等条件对合成反应的影响，确定了最佳工艺条件。最适宜的工艺条件是：反应温度95℃、反应时间6h、原料摩尔比n∶n为1∶1.4，溶剂用量为70mL(相对于0.1mol哌啶醇)，苯甲酸哌啶醇酯的收率为91.05%，产品纯度98.5%。

A new organic compound:N,N'-bis(1,10-phenanthroline-2-formacyl)-4,4'-diamino-diphenylmethane was synthesized via oxidation,esterification,substitution,hydrolysis, amidation of 1,10-phenanthroline as the starting material with chemical reagents (hydrogen peroxide,benzoyl chloride,potassium cyanide,sodium hydroxide solution,4,4'-diamino-diphenylmethane).

以邻菲啰啉为起始原料，与双氧水反应合成邻菲啰啉-N-氧化物，接着与苯甲酰氯、氰化钾、NaOH水溶液一一反应合成中间体邻菲啰啉-2-甲酸，再与4，4′-二氨基苯基甲烷进行酰胺化反应合成目标产物。

Using phenol and benzyl chloride as raw materials and N,N-dimethyl formamide as solvent, benzyl phenyl ether was synthesized under microwave radiation.

采用微波辐射技术，以苯酚、氢氧化钾和氯化苄为原料，N，N-二甲基甲酰胺为溶剂合成了苄苯醚。

The results showed that with the concentration of ozone,ozone treatment time and temperature increasing,the captan residue in apples decreases gradually.

克菌丹化学名称为N-三氯甲硫基-1，2，3，6-四氢苯邻二甲酰亚胺，分子式为C9H8Cl3NO2S，易溶于有机溶剂，在酸性条件下稳定，碱性时易分解。

A few years ago, Toronto banned the use of virtually all lawn pesticides and herbicides, including 2,4-D and carbaryl, on the ground that they pose a health risk, especially to children.

几年前，多伦多禁止使用实际上所有的杀虫剂和除草剂，包括2，4－D和胺甲萘，因为这些杀虫剂对人的健康有威胁，特别是对儿童。

High brain iron involved in the etiology of PD, while iron chelator desferrioxamine mesylate could protect DA neurons.

6.6-OHDA可导致Str的DA释放量及含量均减少，此过程有铁的参与，由于铁可导致DA神经元的死亡，SN内铁升高可使Str内DA释放量和含量均降低，因此铁含量的增加可能是DA含量减少的原因之一，铁离子螯合剂甲磺酸去铁胺具有保护DA神经元的作用。

During 1year ofmaintenancetherapy with 800mg cimetidine daily, 3 of 19 patients relapsed.

用甲腈咪胺每天800mg维持治疗一年期间，19例患者中有3例复发。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。