十二烷基

The properties of microcapsules,including the surface morphology,the size and distribution were characterized using optical photographic microscopy.Surface tension of the surfactants and interfacial tension of oil /water for sodium dodecylbenzene sulphonate solutions at different concentrations were determined by ring method.

采用光学显微镜表征微胶囊粒径大小及分布、表面形貌等性质，用圆环法测定表面活性剂溶液的表面张力和不同十二烷基苯磺酸钠浓度水溶液/环氧树脂的界面张力，探讨了表面活性剂种类和浓度对MUF环氧树脂微胶囊粒径和形成过程的影响。

In this paper, the bovine serum albumin-β-mercaptoethanol-sodium dodecylbenzene sulphonate system was studied by resonance light scattering technique. Based on the RLS intensity difference between β-ME-SDBS system and BSA-β-ME-SDBS system, a simple assay for BSA was developed.

通过测量β-巯基乙醇-十二烷基苯磺酸钠-牛血清白蛋白体系的共振光散射强度，建立了一种测定BSA的快速、简便的共振光散射光谱法。

Infrared spectrum, X-ray diffraction, transmission electron microscopy and conductivity measurement were employed to investigate the properties and structure of polyaniline samples, which were synthesized by emulsion polymerization with different concentrations of ammonium peroxydisulfate and dodecyl-benzene sulphonic acid.

采用红外光谱、X射线衍射、透射电子显微术结合电导率测量，研究了以过硫酸钱为氧化剂，十二烷基苯磺酸为掺杂剂，通过乳液聚合法合成的聚苯胺的性能与结构。

Using dodecyl trimethyl ammonium iodide as collector at pH=7.0 and concentration is 3×10-4mol/L, the A/S of flotation concentrates is 6.82 and Al2O3 of flotation concentrates is 82%.

在pH=7.0时，浓度为3×10-4mol/L，十二烷基三甲基碘化铵做捕收剂时，精矿的A/S为6.82，Al2O3的回收率为82%。

Nanocrystalline Cu films were prepared on an unetched glass substrate by an electroless plating technique with using Sodium Dodecyl Benzene Sulfonate as an additive in the bath.

利用化学镀铜工艺，以十二烷基苯磺酸钠作为镀液添加剂，在未经刻蚀的玻璃表面制备了纳米铜膜。

The toxic effects of single and complex pollutions of linear alkylbenzene sulfonates and Cu2+ on activities of superoxide dismutase and catalase in the liver of oriental weatherfish were studied in laboratory.

采用暴露试验法研究了十二烷基苯磺酸钠与Cu2+单一及复合污染对泥鳅肝脏超氧化物歧化酶、过氧化氢酶活性的影响。

Synergisms of zwitterionic surfactant between the mixed surfactant system of SDS/ C12-C12 were investigated.

采用界面张力法考察了两性表面活性剂C12-C12在癸烷中与十二烷基硫酸钠的协同作用。

Thereinto nano-SnO2 powder is admixed with surface negative ion active solvent dodecyl benzene sulfonic acid sodium salt to reach the purpose of surface modifying.

采用化学沉淀法制备的纳米SnO2粉体，通过表面包覆阴离子活性剂十二烷基苯磺酸钠来达到表面修饰的目的。

The present invention adopts ammonium salt solution as leach, and adopts the liquid-phase oxidation activating agent formed from surfactant sodium ligno-sulfonate or sodium dodecyl sulfonate, liquir phase oxidation catalyst Cu(2+) and sulfur-extracting agent tetrachloroethylene to implement quick leaching process of sulkfide mineral in gas-liquid-solid three-phase reactor, all the sulfurs contained sulfide in mineral powder can be converted into elementary sulfur and sulfuric acid radical, the contained zinc, copper, nickel, cobalt, lead, cadmium and silver can be changed into soluble salt, and fed into leach or remained in the leaching out slag.

本发明涉及的有色金属硫化矿的铵盐液相氧化直接浸出方法，其特征在于：采用铵盐溶液作浸出剂，采用由表面活化剂木质磺酸钠或十二烷基磺酸钠，液相氧化催化剂Cu2+、萃硫剂四氯乙烯组成的液相氧化活化剂，在气液固三相反应器内，实现硫化矿的快速浸出过程，矿粉中各种硫化物所含的硫转变为单质硫和硫酸根，所含的锌、铜、镍、钴、铅、镉、银等变成可溶性盐类进入浸出液中或留在浸出渣中，消除传统流程中二氧化硫，硫化氢，氮氧化物及含砷含汞含铅等有毒烟气的排放。

It is shown that the adsorption of monododecyl phosphate on the surface of silica H is chemical adsorption and according with Langmuir adsorption isotherm formula.

结果表明，单十二烷基磷酸酯在硅胶H表面上的吸附符合Langmuir吸附等温式，且这种吸附为化学吸附。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷