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surfactant相关的网络例句

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与 surfactant 相关的网络例句 [注:此内容来源于网络,仅供参考]

The products were identified by IR,NMR,MS and elemental analysis. In our method,K.OH was used in place of NaOH to synthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate was purified on a silica gel column with chloroform/ethylacetate(4:l,v/v) as eluent and further purified by triturating with hexane/acetone(2:l,v/v).The luminescence produced by DMAE-NHS is a flash light with maximumemission at 0.4s and decay half-time of 0.9s. The luminescence intensity is 6.11x10 cps/mol,which is affected by the composition of trigger and surfactant.

DMAE·NHS的合成是本论文的关键和难点,我们对文献方法进行改进:文献方法用氢氧化钠与3,5-二甲基-4-羟基苯甲酸反应制得3,5-甲基-4-羟基苯甲酸钠,再用3,5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3,5-二甲基-4-羟基苯甲酸苄酯,我们用氢氧化钾代替氢氧化钠,使合成取得成功;在合成2',6'-二甲基-4'-苯基-吖啶-9-甲酸酯时,文献方法对粗产品进行两次硅胶柱层析纯化,第一次柱层析用氯仿/乙酸乙酯(4:1,Ⅴ:Ⅴ)作溶剂和淋洗剂,第二次柱层析用己烷/丙酮(2:1,Ⅴ:Ⅴ)作溶剂和淋洗剂,按照文献方法得到的不是所需要的化合物,我们只进行第一次柱层析纯化,然后用己烷/丙酮(2:1,Ⅴ:Ⅴ)进行研磨,过滤,洗涤,除去溶于己烷/丙酮(2:1,Ⅴ:Ⅴ)的部分,得到所需要的产品。

The PVA could help CNTs weltering the aquatic phase and enhance the stability of their dispersion. The PVA had bifunctional bridges, with hydrophilic groups jointed with the Fe2O3 film, and hydrophobic chains adhered to the surface of the carbon nanotubes, so the Fe2O3 were supported on the surface of the carbon nanotubes through the surfactant.

聚乙烯醇均匀吸附在碳纳米管表面,增强碳纳米管在水溶液中的分散,其疏水基团与碳纳米管以范德华力结合,其亲水基团与Fe2O3·nH2O结合,对碳纳米管有效负载Fe2O3起到了桥梁作用。

An attempt was made to remove color from simulated wastewaters containing Acid Scarlet GR and Reactive violet K-3R by cloud point extraction using a nonionic surfactant of Triton X-114. The influence of the concentrations, equilibrium temperature and equilibrium time on the extraction efficiency was tested. The experimental results show that the extraction efficiency to dye increases with increasing concentration of TX-114 and salt or decreasing initial dye concentration.

本文选用非离子表面活性剂TX-114作浊点萃取剂,研究了由酸性大红与活性紫构成的单元和二元混合染料模拟有色废水的萃取脱色过程,讨论了表面活性剂浓度、染料浓度、盐浓度、平衡温度、平衡时间等因素对萃取效率的影响结果表明,提高表面活性剂浓度、盐浓度有利于提高萃取效率,而染料浓度增加则使萃取效率略有下降。

The interfacial activities of alkyl sulfonate and its combined systems with petroleum carboxylate have been studied and mensurate the adsorption of compound surfactant on oil sand in Daqing oil field.

摘要研究了石油羧酸盐与不同磺酸盐的复配体系的界面活性,测定了复配表面活性剂在大庆油砂上的吸附量。

The cationic surfactant cetyltrimethyl ammonium bromide was used to modify the surface of the supported nano bimetal alloy.

将十六烷基三甲基溴化铵用于负载型纳米二元合金的表面改性,改性后的材料对TCE的还原脱氯性能提高。

For the model system, the reaction time decreased from 24 h to 7 h at 50 ℃ by adding the surfactant of hexadecyltrimethyl ammonium bromide into the reaction systems, and the sulfur content was detected to be below 10×10^-6 after only oxidation process.

对于实际汽、柴油体系,通过添加表面活性剂,氧化过程中油水相比可从1:1降低为25:1,大大减少了氧化剂用量,且氧化后萃取的单级脱硫率大于50%,优于直接萃取过程的脱硫率。

ZnS photocatalyst was synthesized in the presence of surfactant cetyltrimethyl ammonium bromide.

在表面活性剂十六烷基三甲基溴化铵存在时,合成了ZnS光催化剂。

The inhabiting methods for AAR were investigated based on the aggregate that hasthe highest alkali reactivity with ASTM C1260 test. Several inorganic or organic additivessuch as calcium nitrate, barium nitrate, aluminum nitrate and cationic surfactant were used.

采用ASTM C1260 方法,以碱活性检验中活性最高的一种骨料为试验样品,选择Ca(NO_3)_2、Ba(NO_3)_2、Al(NO_3)_3 及阳离子表面活性剂等几种有机、无机化学外加剂,进行了AAR 膨胀的抑制试验。

Results show that only by selecting proper surfactant to disperse the nano-Al_2O_3 powders completely before adding in the plating bath can a fine composite coating with tiny Al_2O_3 well-distributed be obtained.

将纳米Al2O3应用于化学复合镀中,研究了表面活性剂对纳米Al2O3粉的分散状态和-Al2O3纳米微粒复合镀层组织形貌的影响。

A series of emulsion fuel oil were designed with Triton X 100 as principal emulsifying agent,whose molecular formula is C 8H 17 ——O(CH 2CH 2O) 10 H.One of other kinds of surfactant is used as the auxiliary emulsifying agent.The emulsion structures were determined by micrography,and the combustion heat was determined by a bomb calorimeter.

以具有聚氧乙烯为亲水基团的非离子表面活性剂为主要乳化剂,其它表面活性剂每种类型各取一个与之复配,进行替换对比,从而以最少的表面活性剂种类,得到尽可能全面的乳液结构类型,以便找出乳液结构与乳化燃油燃烧热之间的关系。

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