两性离子

FF-IR results showed that in the strongly acidic, weakly acidic, and basic solutions, the glycine exists in the form of cation, zwitterion, and anion, respectively.

在强酸性、弱酸性和碱性溶液中，吸附态的甘氨酸分别主要以阳离子、两性离子和阴离子形式存在。

The oil-displacing agents for crosslinked polymer oil-displacing system are mainly as follows:the polymer containing monomers with heat resistance and salt tolerance ,zwitterion polymer,hydrophobically associating water-soluble polymer,polymer complex system,and comb polymer.

用于交联聚合物驱油体系的驱油剂主要有含耐温抗盐单体的聚合物、两性离子聚合物、疏水缔合水溶性聚合物、聚合物复合体系和梳形聚合物。

The intermixture of positive ion surfactant Cetyltrimethyl Ammonium Bromide and zwitterion surfactant N,N-C12BE was used to modify the natural zeolite. Correlative parameters of modified zeolite adsorbing Cr and phenol from wastewater were studied.

摘 要：用阳离子表面活性剂十六烷基三甲基溴化铵与两性离子表面活性剂 N，N-二甲基十二烷基甜菜碱复配的混合表面活性剂对天然沸石改性，研究了改性沸石吸附废水中 Cr 和苯酚的相关参数。

The association defect formed by donor and acceptor was the obstacle of the electromigration of the Oxygen vacancy and the electron. The valence variation of MnO〓 during the sintering and reoxidation process can improve the insulation resistance effectively.

要发挥MgO受主掺杂的作用，同时要避免氧空位的增加。Y〓和Dy〓作为两性离子掺杂，减少了氧空位，产生的施主和受主相互缔合，成为氧空位和电子迁移的障碍。

These compounds are able to be used as hydrophilic chain-extenders in the synthesis of zwitterionic polyurethane ionomers for the existence of hydroxy groups.

这些化合物可以作为两性离子型聚氨酯离聚物的扩链剂使用。

Its chemical structure ensures that the thickener does not react with cationic, anionic or zwitterionic surfactants and emulsifiers and does not require neutralization.

其化学结构确保增稠剂没有反应，阳离子，阴离子或两性离子表面活性剂和乳化剂，并且不需要失效。

It was showed that trapping reactions in singlet oxygenation of 1 occured mainly on the stage of zwitterionic intermediate (2), whereas was not a major precursor to trapping prod-ucts.

结果显示，在1的单重态氧反应中，捕捉反应主要发生于两性离子(2)阶段，而4并非导致捕捉产物的重要中间体。

Results The concentration of zwitterionic detergent CHAPS and reductant was decisive for obtaining good resolution of 2-DE pattern. Protein sample should also be processed as quickly as possible under low temperature to prevent proteins from degradation.

结果：两性离子去污剂CHAPS及还原剂的浓度是影响双向电泳图谱分辨力的重要因素；蛋白质组样品的处理必须在低温下快速完成，以避免蛋白降解。

These two reactions that give different four-memabered heterocyclic products; both proceed;via a two-step mechanism involving a zwitterionic intermediate.

结果表明，这两个生成不同四元杂环产物的平行反应均为有一两性离子中间体的分步反应。

It is concluded that the infrared photodissociation spectroscopy of protonated serine clusters H+n, n = 2 8, provides evidence for a size-dependent transition from neutral to zwitterionic network structures.

第四章的结论中提到由此一系列由二至八的丝胺酸团簇红外吸收光谱结果，我们观察到从二聚体的中性丝胺酸单位到八聚体的两性离子单位，中间经历了结构转换的过程。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。