离体活性,in vitro activity
1)in vitro activity离体活性
英文短句/例句
1.In vitro screening of effective fungicides against Corynespora cassiicola黄瓜褐斑病防治药剂的离体活性筛选
2.Determination of Activated Species in Strong Ionized Discharging Plasma强电离放电等离子体中活性物种的检测
3.Study on Active Screen Plasma Nitriding of Austenitic Stainless Steel;奥氏体不锈钢活性屏离子渗氮的研究
4.The Isolation and Structure Elucidation ofPlastoquinone From Leaves of Rice;稻叶中质体醌的分离鉴定和活性研究
5.THE TEACHING STUDY OF REACTIVE INTER-MEDIATE-CARBONIUMIONS;有机活性中间体—碳正离子的教学研究
6.Adsorption of Ionic Liquid [BMIM]Cl by Activated Carbons活性炭吸附离子液体[BMIM]Cl的研究
7.Study on Plasma Sprayed New Bioactive Coatings等离子体喷涂新型生物活性涂层研究
8.Progress in Study of Monomers Used in Living Anionic Polymerization活性阴离子聚合及其单体的研究进展
9.Experimental study on the correlation between postmortem intervals and 5′-NT or ACP in rats′ liver in vitro;大鼠离体肝脏5′-NT和ACP活性与PMI的相关性研究
10.Research on the Properties of Mixed Cationic and Anionic Surfactants Aqueous Solution异电离子表面活性剂混合体系性质的研究
11.Mixing Behavior of Ionic Liquid Surfactant C_(12)mimBr with Common Surfactants离子液体型表面活性剂C_12mimBr与普通表面活性剂混合性质的研究
parison of the ROS Scavenge Enzyme Activities between in vivo and Detached Potato Leaves马铃薯活体与离体叶片中ROS清除酶活性变化的比较
13.HPLC Purification of Antimicrobial Peptides from Northeast Forest Frogs and the Study of Anti-Influenza Virus Effect in Vitro;东北林蛙皮肤活性肽HPLC分离纯化及体外抗病毒活性研究
14.Study on the Acaricidal Activity of Neem Oil in Vitro and the Isolation, Purification and Identification of Acaricidal Active Component from Neem Oil;印楝油体外杀螨活性及其活性物质的分离纯化与结构鉴定研究
15.Study on the Antibacterial Activity、Isolation, Purification of Active Component and the Inhibiting Mechanism of Prinsepia Utilis Royle青刺果体外抑菌活性及其活性物质的分离纯化与作用机制研究
16.non-ionic surface active agents-determination of cloud point index-volumetric method非离子表面活性剂-浊点指数测定-测定体积法
17.The first of the reactive intermediates to be considered is known as a "carbocation".要研究的第一种活性中间体叫做“正碳离子。”
18.The first of the reactive intermediates to be considered is known as a "carboniumion".要研究的第一种活性中间体叫做“正碳离子”。
相关短句/例句
Antifungal activity in vitro离体抑菌活性
3)reactive gas plasma活性气体等离子体
4)Anionic surface-active monomer阴离子表面活性单体
5)Cationic superficially-active monomer阳离子表面活性单体
6)niosome非离子表面活性剂载体
1.Influence of the compositions of camptothecinniosomes on their morphology,size and size distribution;喜树碱非离子表面活性剂载体组成对其形态和粒度分布的影响
延伸阅读
活性中间体有机反应中出现的活泼反应中间体。有机反应一般涉及共价键的断裂和形成两个历程，其方式有同时发生协同反应和分阶段进行两种。多数有机反应是分阶段进行的，过程中出现的活泼反应中间体（A和B），再进一步反应生成最终的稳定产物(A-C)：一步反应：C+A-B→[C...A...B]→C-A+B阶段反应：A-B→[A...B]→A+BA+C→[A...C]→C-A协同反应是一步完成的,没有反应中间体,所以只经历一个过渡状态（图1）。而阶段反应（图2），从反应物到产物，要经过两个高点和一个低点，这个低点就代表活性中间体。其能量较反应物和产物均高得多，所以很活泼，但是相对于两个高点（过渡状态1和2）能量又较低，因而能短暂存在。中间体的能量势谷（即图中最低点）越低，就越稳定，寿命也越长。迄今已发现多种各具特色的反应活性中间体。主要有:正碳离子(R+)、负碳离子(R-)、自由基(R·)、卡宾(R2C:),还有复合型中间体,如正离子基R抆和负离子基R刔（见离子基）等物种。中间体极其活泼,寿命很短,难以用常规方法加以分离和提纯。鉴于它们的结构特征，可以在特殊条件（低温或捕集、络合等）下使用现代光谱学及其他化学或物理学的手段来鉴别其结构和反应性能。参考书目W.J.le Noble, Highlights of Organic Chemistry,Marcel Dekker,New York,1974.
