表面活性剂

The interactions between polymer and each of four kinds of surfactants were studied by means of a controlled-stress rheometer.

采用控制应力流变仪全面研究了阳离子型、阴离子型、非离子型以及两性表面活性剂与部分水解聚丙烯酯胺相互作用。

A gold immunostrip for rapid detection of Chloramphenicol was developed based on competitive immunochromatographic assay. And the mixtures of saccharose, dextran, polyvinylpyrrolidone, polyethylene glycol, bovine serum albumin, tween20 and antiseptic, etc, as protectants were designed and prepared. Different part of the strip was treated with the protectants, and then thermo-stability of the strip was investigated with storage at 4℃, 37℃ and 60℃.

根据竞争性金免疫层析法原理，研制了氯霉素速测金标试纸条，并选择了蔗糖、葡聚糖、聚乙烯吡咯烷酮、聚乙二醇、牛血清蛋白、表面活性剂Tween20、防腐剂等物质，采用经验尝试法配制了一系列的配方，对试纸条不同部位进行处理，通过37℃和60℃下热稳定性测试，并与未经稳定剂处理的对照进行比较，筛选出适宜的试纸条保护剂。

Three types of interfacial tension curves were observed. The first curve comprised two curves that were located on either side of 1:1 molar ratio, and the interfacial tension decreased with the increase of excessed surfactant component. The second one was a saddle-shaped curve that strode over the 1:1 molar ratio. The third type was a saddle-shaped curve that was located beside the 1:1 molar ratio.

观察到三种界面张力曲线类型，第一类为摩尔比1：1的两边的两条曲线，界面张力随过剩表面活性剂组分的比例增加而降低；第二类为一条跨过摩尔比1：1的马鞍型曲线；第三类为位于摩尔比1：1的一边的一条马鞍型曲线。

The experiment results also showed the existence of surfactant petroleum sulfonate and long-term deposited at high temperature can weaken its plugging performance. The flooding and deep profile control properties of flexible neo-resin polymer compound system were studied by sand packed tube to simulate the formation.

柔性树脂－聚合物复合调驱体系对微孔滤膜的封堵性能随聚合物浓度及复合调驱剂浓度增加而增强，但表面活性剂石油磺酸盐的存在会使复合调驱体系的封堵性能降低；复合调驱体系在高温下长期放置后，其封堵性能明显变差。

In addition, DMC can also be used in the additive of the sanitizer, surface-active substance and softener.

此外，DMC还可作清洁剂、表面活性剂和柔软剂的添加剂。

Results show that main microbial populations in the reservoir are saprophytic bacteria,hydrocarbon-oxidizing bacteria and ferment bacter...

结果表明，腐生菌、烃类氧化菌、发酵菌等是油藏中存在的主要微生物群落；注入玉米浆可以有效刺激内源微生物的生长与代谢，产生表面活性剂和生物气，有利于驱油；硝酸铵可以有效抑制硫酸盐还原菌的生长。

The experimental parameters such as pH value of buffer solution, scan rate, accumulation time and surfactant type were optimized.

优化了测定条件，即介质的pH、扫描速度、富集时间和表面活性剂的种类等。

In this paper, the effect of mixed surfactants on improving the selectivity of Fe3+-CAS color reaction was investigated.

本文研究了混合表面活性剂对显色反应选择性的影响。

Nanospheres of Zinc Selenide have been synthesized by hydrothermal method using hydrazine hydrate as reductant and oleic acid as surfactant.

以水合肼为还原剂，并用油酸作为表面活性剂，合成了具有面心立方结构的立方闪锌矿型硒化锌纳米球。

Its characteristic band is sensitive to the polarity of environment. It was found that the semilogarithmic plot of λ versus surfactant concentration exhibited two inflection points. The first inflection point corresponded to the critical micelle concentration, and the second inflection point C(subscript cm addressed the critical point reaching dense structure in the micellar core.

由于它的荧光特征波长对环境极性的敏感性，其荧光发射波长－表面活性剂浓度(λ-1gc)曲线出现了2个浓度相距较大的转折点，第一个转折点对应临界胶团浓度，第二个转折点C则表征胶团结构达到较为密实的临界点。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。