氯甲烷

There were obviously more chafers near the castor-oil plant than soybean, cotton, sweet potato, peanut, elm, Abutilon theophrasti Medic, there was significant difference between them.

华北大黑鳃金龟对不同植物挥发性物质的选择反应(1)采用水蒸气蒸馏法，二氯甲烷萃取，提取植物叶片的挥发性物质，无论对雌虫还是雄虫，蓖麻叶粗提物的诱虫活性均显著高于棉花、苘麻叶片粗提物。

It was found that cyclic peptide 23shows higher transport activity for the studied alkali and alkaline-earth metal ions thancompound 24, which is related to the backbone flexibility of the cyclic peptides.

研究了在这两种环肽的存在下，碱金属和碱土金属离子穿越二氯甲烷液膜的过程。

In this paper, research is focused on the two aspects, the study on the liquid-liquid mass transfer of butanone and dichloromethane in emulsion liquid membrane, and the study on the liquid-liquid equilibria of butanone and dichloromethane in emulsion liquid membrane.

本文是针对丁酮与二氯甲烷在乳化液膜体系中油—水相间的液液传质以及液液平衡进行实验研究。

The adsorption and reaction process of isobutane and butene were investigated by using in-situ IR, Reaction-MS and Adsorption methods.

利用HF酸溶解以及用二氯甲烷进行萃取等方法，对失活催化剂的性质进行了细致的研究。

Results The extract remarkably inhibited the contraction caused by histamine and acetylcholine, as well as the ovalbumin sensitized allergic constriction of isolated ileum smooth muscle of guinea pigs. It could inhibit the increase of capillary permeability induced by acetic acid in mice, inhibit the mice paw edema produced by carrageenin and reduce the production of PGE 2 in inflammatory tissues.

结果：辛夷二氯甲烷提取物对组胺、乙酰胆碱（Ach引起的豚鼠离体回肠收缩具有显著的抑制作用，并能抑制卵白蛋白所致的豚鼠离体回肠过敏性收缩，对HAc引起的小鼠腹腔毛细血管通透性增高具有抑制作用，能显著抑制角叉菜胶引起的小鼠足肿胀，并减少前列腺素E2（PGE2）在炎症组织中产生。

The monochloro methane is used for the methyl chloresilane element original material and organo silicone.

一氯甲烷主要用作甲基氯硅烷单体原料，用于有机硅行业。

A GC headspace injection method for the determination of residual organic solvents such as methanol, ethanol, acetonitrile, dichloromethane, ethylacetate, 4 methyl 2 pentanone, toluene, DMF, chloroform and tetrahydrofuran in tazobactam was established.

建立了气相色谱顶空进样法测定三唑巴坦中甲醇、乙醇、乙腈、二氯甲烷、乙酸乙酯、甲基异丁基酮、甲苯、N ，N′-二甲基甲酰胺、氯仿和四氢呋喃等有机溶剂的残留量。

Diaminoalkanes react with sym - tetrachloroethane to give crystaline 2,2'- Bis -( hexahydropy-rimidine) derivatives 1 - 5, after treatment with aqua ammonia.

利用均四氯乙烷及二氯甲烷的胺化反应，合成了联氢化嘧啶衍生物1～5，4a，8b-反-4，5，8a，9a-四氮杂全氢芴(6)和8b，8c-顺-3a，4a，7a，8a-四氮杂环戊并全氢芴(7)。

Tri-cyanurate as a excellent additional retardant was synthesized by using cyanuric chloride_3,tribromophenol as main materials and under the condition of sodium hydroxide,dichloromethane,toluene as solvent respectively.

以三聚氯氰3和三溴苯酚为主要原料，在碱性条件下，分别以二氯甲烷、甲苯作为溶剂，合成了一种性能优良的添加型阻燃剂三三聚氰酸酯。

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。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。