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Experiments are carried out to study the effects of several anions on the photocatalytic degradation rates of sodium dodecyl\ benzene sulphonate.

研究了存在于水环境中的若干重要阴离子对表面活性剂十二烷基苯磺酸钠光催化降解速率的影响。

Results indicate that SDBS and glutin play a positive role in the forming of microcapsules.

结果表明,十二烷基苯磺酸钠和明胶均对微胶囊的形成有积极作用,SDBS所制备的微胶囊粒径更小。

The sodium ions located in the 12-membered ring main channel (with Q〓〓0.2 MHz) of zeolite omega are fully hydrated and so mobile to average out the 〓H-〓Na dipolar interaction, while those in the gmelinite cage (Q〓=2.3 MHz) are less hydrated and closely bonded to the lattice oxygen.

3〓Na MAS及〓Na二维四极章动实验的研究表明,在NaΩ分子筛中存在两类不同水合状态的钠离子:一类处于12-圆环主孔道中(四极作用常数Qcc=0.2MHz),另一类处于菱钾沸石笼里(Qcc=2.3MHz)。

The sodium bentonite was modified by organic reagent hexadecyl trimenthyl ammonium bromide and cationic polyacrylamide. The structures of modified organo-bentonite and the effect of concentration of the intercalating reagent and reacting time on decoloring capacity were studied.

用阳离子有机改性剂十六烷基三甲基溴化铵和阳离子聚丙烯酰胺复合插层改性钠基膨润土,分析了改性膨润土的结构,研究了改性剂质量浓度及二次改性时间对复合插层膨润土脱色效果的影响。

Methods By the bioinformatics analyzing tools in bioinformatics webs site,a Ta CRISP 2 fulllength gene from the Taenia saginata asiatica fulllength cDNA plasmid libratory was identified and the coding region sequence and the characteristics of the deduced protein were analyzed.The coding region of Ta CRISP was amplified with PCR,endonuclease digestion and cloned into the prokaryotic expression vector pET30a and then expressed in E.coli BL21 with IPTG induction.

用生物信息学方法从亚洲牛带绦虫成虫全长cDNA质粒文库中识别TaCRISP的全长编码基因并预测编码蛋白质的各种结构与功能;将其编码区序列克隆到原核表达载体pET-30a上,测序鉴定重组质粒,之后进行诱导表达,表达产物经十二烷基磺酸钠-聚丙烯酰胺凝胶电泳鉴定。

Hign-purity manganese carbonate from the manganiferous waste water was produced from the manufacture of 1,4-dihydroxy benzene, especially the preparations from waste water containing plenty of natrium and sulphate were studied.

以对苯二酚生产中副产物含锰废水为原料,研究了生产高纯碳酸锰时除杂质钠盐与硫酸根的工艺,并研究了影响杂质含量的诸因素,如温度、锰离子浓度、加料方式等。

Electrophoretic conditions were as follows: an applied voltage of 20kV, at 25℃, detected at a wavelength 201nm. The main components in white muscardine silkworm are successfully separated.

电解质溶液由以10mmol/L磷酸二氢钠-20mmol/L的硼砂溶液(pH8.62)作缓冲液,在25℃,20kV的压力下进行电泳,201nm波长处检测,线性关系良好,在25min内完全分离。

Polystyrene-MMT nanocomposites were prepared by free radical polymerization of styrene containing dispersed clay. The organophilic MMT particles were easily dispersed and swollen in styrene monomer.

采用双-苯基二甲基十八烷基溴化铵作为有机插层剂对钠基蒙脱土进行了有机化处理,该有机化的蒙脱土粒子在苯乙烯单体中很容易地均匀分散并形成稳定的胶体溶液。

The extraction of Pr3+was studied by using heptane containing bis(2-ethylhexyl)phosphinic acid in sodium perchlorate,chloroacetic acid and citric acid medium ,respectively.

研究了二(2-乙基己基)膦酸(PIA-8)的庚烷溶液分别在高氯酸钠、氯乙酸、柠檬酸介质中对Pr3+的萃取。

And in the 19 century alkali rocks are often associated with Pacific style natric alkali rocks and mediterranean style potassic alkaic rocks. They were usually generated in deep-large-fault zone and closely connected with basic/ultra basic rocks in space.

在十九世纪九十年代就将碱性岩分为大西洋型的钠质碱性岩和地中海型的钾质碱性岩,到二十世纪九十年代将碱性岩分为超基性碱性岩、基性碱性岩、中性碱性岩和碱性岩。

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