活性剂

Magnetic fluid ; surface active agent ; preparation ; enwrap

磁流体；表面活性剂；制备；包裹

The effects of experimental conditions such as pH, concentration of chelating agent and surfactant, equilibration temperature and time on cloud point extraction were discussed.

详细考察了溶液的pH值、络合剂和表面活性剂浓度、平衡温度和时间等条件对浊点萃取效果的影响。

The effects of experimental conditions such as pH, concentrations of chelating agent and surfactant, equilibration temperature and time on cloud point extraction were discussed.

详细考察了溶液的pH、络合剂和表面活性剂浓度、平衡温度和时间等条件对浊点萃取效果的影响。

Capillary electrophoresis separation and determination of the sex hormones, estriol, 17βestradiol, estrone, corticosterone, testosterone and progesterone were examined, using SDS and βcyclodextrin as Trisboate running buffer additive.

本文采用加入表面活性剂SDS和β环糊精的Tris 硼酸作为电泳溶液体系，对毛细管电泳法分离测定雌三醇，雌二醇，雌酮，皮质酮，睾酮和孕酮等六种天然性激素的条件进行了探讨。

Grain size analysis and refrigeration etcher transmission electron microscope technique show that the medium mixed layer is a structure in which the surfactant like micella, microemulsion, emulsion exist simultaneously and microemulsion occupies the main position.

粒度分析和冷冻蚀刻透射电镜技术表明，中间混合层为胶束、微乳液、乳状液等表面活性剂聚集体共存的结构，其中微乳液结构占主要地位。

The progress in the catalytic ring-opening polymerization of ethylene oxide and propylene oxide is reviewed in this paper.

环氧乙烷和环氧丙烷的开环聚合产物在表面活性剂工业和聚氨酯工业得到了极为广泛的应用。

It was obtained with ethylenediamine and ethenesulfonic sodium as primary material through addition.

它是一种易降解的新型Gemini表面活性剂－N， N'-双癸酰基乙二胺二乙磺酸钠的中间体。

The globe kinetics model can be described by an exponential equation, which was fitted very well with experiment data and the error was within 7%.

结果表明，当初始pH值为7.5、反应时间为120min时，质量浓度为25mg/L的表面活性剂十二烷基苯磺酸钠的去除率为97％，且DBS降解的反应动力学模型可用幂指数方程描述，该模型计算值与试验值吻合较好，误差在7％以内。

The interaction of DNA with five diverse surfactants was studied by cyclic voltammetry and electrical impedance. DNA modified gold electrodes were prepared and methylene blue and ferricyanide were used as the redox probes, respectively.

以修饰DNA的金电极为DNA传感器，亚甲蓝和铁氰化钾分别为探针，用循环伏安和电化学阻抗技术对五种不同种类的表面活性剂与DNA的相互作用进行研究。

The influence of HTABr on s-BLMs was investigated by cyclic voltammetry and electrochemical impedance spectroscopy. The experimental results show that the HTABr appeared to be an effective ion carrier to facilitate the transmembrane transportation of ferrocyanide/ferricyanide.

而且，我们发现，在一定程度内(即表面活性剂的浓度低于Csol，或反应的时间比较短)，若将电极取出放入到KC1支持液中，磷脂分子在电极表面可以重新自组装，s-BLM重新恢复到原来的状态，探针分子在电极上的响应电流也逐渐变弱，直到完全消失。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。