1) zwitterion
[英]['tsvitəraiən] [美]['tsvɪtɚ,aɪən]
两性离子;偶极离子
2) ion-dipole
离子偶极
3) dipolar ion
偶极离子
1.
On the basis of the Structural features of the dipolar ion, the new model helps to anlyse the formation of the ion bond, van der Waals bond, ion area, hydriphobic screen and crystal structure in the Physichemical Processes of crystalization hydeation, spreading, dissolution, etc.
该模型依据偶极离子的结构特征，从结晶、水化、扩散、溶解等物理化学过程，分析了离子键、范德华键以及它们形成的离子层、疏水屏障和晶体结构，并论证了等电点时溶解度最低这一原理。
4) Zwitterion
[英]['tsvitəraiən] [美]['tsvɪtɚ,aɪən]
两性离子
1.
Theoretical Study on Structures and Properties of Dihydrated Zwitterionic Glycine Complexes;
二水合甘氨酸两性离子复合体的结构和性能的理论研究
2.
Research for detecting organic acids by ion chromatography with zwitterions;
两性离子为流动相离子色谱法测定常见有机酸探讨
3.
Determination of chloride and phosphate in heteropoly acid(HPA) samples with 3-(N-morpho-(lino) propanesulfonic) acid(MOPS),a zwitterions,as an ingredient of mobile phase by mobile phase ion(chromatography) was studied.
通过在淋洗液中加入两性离子3-(N-吗啉)-1-丙磺酸(3-(N-morpholino)propanesu lfon ic ac id,MOPS),调节流动相pH值,找到一种pH 6。
5) amphoteric
[英][,æmfɔ'terik] [美][,æmfə'tɛrɪk]
两性离子
1.
The technological developments of four types surfactants,anionic,nonionic,cationic and amphoteric surfactants,and two types raw materials are reviewed,and the development trend of surfactant industry is discussed.
综述了阴离子、非离子、阳离子、两性离子类表面活性剂及其两种主要原料 (直链烷基苯磺酸盐、脂肪醇 )的技术进展 ,概述了表面活性剂的发展方
2.
The viscosity behavior of the aqueous complex solution of hydrophobically modified amphoteric cellulosic graft copolymer and hydrophobically modified polyacrylamide have been investigated as a function of complex ratio, complex concentration, NaCl concentration, temperature, shear rate and pH by means of Haake Rheometer.
考察了复合溶液的复合比、复合物浓度、Na Cl浓度、温度、剪切速率及 p H等因素对疏水化两性离子纤维素接枝共聚物 /疏水化聚丙烯酰胺复合溶液粘性行为的影响 。
6) amphion
两性离子
1.
Study on properties of amphion thinning agent;
两性离子降粘剂AMTA性能研究
2.
The paper introduced the composition, preparation, plugging mechanism, indoor study and core testing of amphion weak gel profile control agent.
本文介绍了两性离子弱凝胶调堵剂的组成、制备、封堵机理、室内研究和岩心试验情况。
补充资料：“质子-电子偶极-偶极”质子弛豫增强
“质子-电子偶极-偶极”质子弛豫增强
物理学术语。原子核外层中不成对的电子质量小，但磁动性很强，可使局部磁场波动增强，促使氢质子弛豫加快，从而使T1和T2缩短，这种效应即为PEDDPRE。过渡元素和镧系元素大部分在d和f轨道有多个不成对电子，所以其离子往往具有PEDDPRE，可用来作顺磁性对比剂，如钆(Gd)。Gd在外层有7个不成对电子，具有很强的顺磁性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条