甲基剂

Highly stabilized mesoporous molecular sieves were synthesized by the hydrothermal method using natural clay and sodium silicate as raw materials and cetyltrimethyl ammonium bromide as a template.

以天然黏土和硅酸钠为原料、十六烷基三甲基溴化铵为模板剂，水热法合成了有序性好的高稳定性介孔分子筛。

The copolymers of 2-acrylamio-2-methyl propane sulfonic acid and other water soluble monomers are indispensable chemicals in various papermaking plants,which can be used as water-displacing assistant agent,sizing agent and pigment dispersant of color coating and to enhance the strength of paper.

造纸2-丙烯酰胺基-2-甲基丙磺酸和其他水溶性单体的共聚物，是各类造纸厂不可缺少的化学品，它可作为排水助剂、施胶剂，增加纸的强度，还可作为彩色涂层的颜料分散剂。

In this paper, in order to reduce delamination phenomena of cherry tomato juice in the storage processing. The stability was enhanced and the quality was improved, so as to the long-term stability of cherry tomato juice was achieved. The single factor test and orthogonal test were adopted, and stability effects were studied by some stabilizer such as sodium alginate, carra geenan, edible gelatin, CMC, xanthan gum on cherry.

为了减少樱桃番茄果汁在加工贮藏过程中的分层现象，提高其稳定性，改善其品质，达到使樱桃番茄果汁长期稳定的目的，采用单因素试验和正交试验研究了琼脂、海藻酸钠、卡拉胶、食用明胶、羧甲基纤维素钠、黄原胶等6种常见的稳定剂对樱桃番茄果汁的稳定效果。

As superplasticizer , a series of comb-shaped copolymers of polycarboxylic acid were synthesized by polyoxyethylene allyl methyl diether, maleic anhydride, and styrene with different initiators,and esterified with PEO-n.

以聚氧乙烯甲基烯丙基二醚、顺丁烯二酸酐、苯乙烯等为共聚单体，采用不同引发剂，合成了一系列聚羧酸型梳状共聚物超分散剂，并以PEO n单酯化得酯化产物，研究了共聚物的结构、组成、添加量等对水泥粒子分散性能的影响。

Comb-shaped copolymer of polycarboxylate containing carboxyl,sulfonic groups(-SO3M),polyethylene glycol(-OC2H4-) was synthesized by monomers of sodium 2-acrylamido-2-methylpropane sulphonate,acrylic acid,polyethylene glycol monoester acrylate under certain conditions.

本文通过2-丙烯酰胺-2甲基丙基磺酸钠与丙烯酸、聚乙二醇单丙烯酸酯在一定条件下发生聚合反应合成含有羧基、磺酸基(—SO3M)、聚氧乙烯链(—OC2H4—)等侧链的高性能减水剂PC。

The drag-reducer used in the present test is cetyltrimethyl ammonium chloride surfactant combining with the same weight concentration sodium salicylate.

本次试验所用的减阻剂为十六烷基三甲基氯化铵表面活性剂，同时配以等质量浓度的水杨酸钠。

Objective A multiresidue method based on solid-phase extraction andgas chromatography with electron capture detector was developed for thesimultaneous determination of 15 pesticides (Dichlorvos, Dimethoate,Parathion-methyl, Malathion, Parathion, Fenpropathrin, Lambda-cyhalothrin,Cypermethrin,Esfenvalerate,Deltamethfin,Quintozene,Dieldrin,Heptachlor,α-Endosulfan,β-Endosulfan) in drinking water.

目的：建立同时检测饮用水中15种农药残留的固相萃取-气相色谱分析方法，所检测的农药包括5种有机磷：敌敌畏，乐果，甲基对硫磷，马拉硫磷，对硫磷；5种有机氯：五氯硝基苯，狄氏剂，环氧七氯，α-硫丹，β-硫丹；5种拟除虫菊酯：甲氰菊酯，三氟氯氰菊酯，氯氰菊酯，氰戊菊酯，溴氰菊酯。

The effect of controlling microstickies in recycled newspaper pulp and the effect on the resultant paper property of some fixatives,including inorganic polyaluminum chloride,organic polyamine,polydiallydimethyl ammonium chloride,and high cationic starch,were investigated in this paper.

分别以聚合氯化铝、聚胺、聚二甲基二烯丙基氯化铵和高取代度阳离子淀粉作为固定剂，研究了它们对废纸浆中微胶黏物的控制效果及对纸页性能的影响。

The separation behavior of o hydroxybenzoic acid, m hydroxybenzoic acid and p hydroxybenzoic acid in high performance capillary zone electrophoresis was investigated using cetyltrimethylammonium bromide as reversed reagent for electroosmotic flow The effects of pH of buffer solution and volume fraction of methanol on the separation, peak shape and elution order were studie

采用十六烷基三甲基溴化铵为电渗流改性剂，考察了邻羟基苯甲酸、间羟基苯甲酸和对羟基苯甲酸在高效毛细管区带电泳模式下的分离行为，研究了缓冲液的pH和添加剂甲醇的用量对这 3种同分异构体的分离、峰形和出峰顺序的影响，并据此优化了这 3种异构体的分离条件。

Isolated PBMC were separated from 5 mL venous blood in asepsis condition. NF-κB stimulator, NF-κB inhabitor and astragalus were added into the different tubes of PBMC, respectively.

抽取所有研究对象5 mL静脉血并提取PBMC，分别加入NF-κB刺激剂IL-1β、NF-κB抑制剂对甲苯磺酰－L-苯丙氨酸氯甲基酮及黄芪注射液。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。