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The system can detect hexylamine, dimethyl sulphoxide and acetonitrile properly and is verified that it is valid.

利用该系统准确识别了环己胺、二甲基亚砜和乙腈三种有机化合物,验证了所构造的系统的有效性。

But in the + moiety, the three benzimidazole rings shared the whole space equally, the dihedral angel among them is about 120°, just like three fan blades of an airscrew, the molecular structure appear gear-like shape.

X-射线单晶衍射测试、红外、紫外等方法确定了三(2-苯并咪唑亚甲基)胺的Fe和Co配合物的结构,由晶体结构发现金属配位情况不同、配合物在结构上存在着差异,Fe为八面体构型,而Co为三角双锥构型;其次,两配合物中的苯并咪唑环间夹角不同,配合物中包含N2和N4的两个苯并咪唑环间夹角仅为9.41(0.11),几乎构成一个平面,呈蝴蝶形;后者Co三个苯并咪唑环几乎平分了整个空间,它们之间的夹角约为120,呈三扇叶螺旋桨式构型,为齿轮形。

The investigation of infrared spectra further demonstrated that amide and nitroso-compound were the damage products.

红外吸收光谱的分析进一步表明低能氮离子与PhCOONa溶液作用形成了酰胺及亚硝基化合物。

Methods We used retrograde CTb immunocytochemical and NADPH-d histochemical staining methods after microinjecting CTb into cortical amygdaloid.

采用霍乱毒素B亚单位逆行追踪和还原型尼克酰胺腺嘌呤二核苷酸脱氢酶组织化学双重染色相结合的方法。

Compared with aurum, palladium and platinum as seeds, Silver is much cheaper and lower pollutional and can also activate electroless plating, although it is still rarely investigated.

我们采用激光诱导化学镀技术在聚酰亚(来源:ABC论文1313网www.abclunwen.com)胺薄膜表面上用四种方法选择性沉积金属银作为活化种,然后进行化学镀从而在聚酰亚胺表面上沉积上图形化的铜镀层。

The condensation of aromatic aldehydes with active methylene compounds like malononitrile, cyanoacetamide and ethyl cyanoacetate has been found to proceed very efficiently at room temperature giving excellent yields, but the condensation of heteroaromatic,α,β-unsaturated and aliphatic aldehydes with active methylene compounds proceeded smoothly in 50~65℃ with good yields and the reactions of aromatic, aliphatic ketones as well as p-phthalaldehyde with malononitrile also proceeded in 75~85℃ with moderate yields.

芳香醛与活泼亚甲基化合物如丙二腈、氰基乙酸乙酯、氰基乙酰胺的缩合在室温下即能顺利进行,获得了很高的收率;而对于杂环芳醛、α,β-不饱和的醛以及脂肪醛与活泼亚甲基化合物的缩合,需在50~65℃下进行,也取得了很高的收率;对于脂肪酮、芳香酮以及二元醛与丙二腈的缩合在75~85℃下也能顺利地进行,获得中等以上的收率。

Results Ket,NMDA-receptor antagonist,in the subeffetive doses(5mg/kg),significantly obstruct the acquisition of SDER when combined with the subeffective dose of M receptor antagonist Scop(3mg/kg). Conclusions Ket can potentiates obstructing-effects of Scop in neutropic effect,and the findings provide further support for the interaction of cholinergic and glutaminergic systems in learning and memory process.

于是,本实验试图通过合用亚有效量的M—受体阻抗剂东莨菪碱和亚有效量NMDA受体的选择性拮抗剂氯胺酮观察对小鼠跳台回避反应的影响,从而从阻碍学习获得的角度来探讨胆碱能递质系统与谷氨酸能递质系统是否共同参与学习记忆功能。

The application of perfluoroalkanesulfinyl chlorides and chiral perfluoroalkanesulfinamines in organic synthesis was studied in this dissertation.

中文摘要本论文对全氟烷基亚磺酰氯在含氟化合物合成中的应用进行了研究,并对它的衍生物手性全氟烷基亚磺酰胺的制备和应用进行了初步探索。

In most cases, the medical profession do not advocate drug use of tea, in particular, ferrous sulfate, ferrous carbonate, iron citrate iron drink containing amine such as aluminum hydroxide of aluminum-containing agents, such as the western face of tea tea and more phenolic material and metal ion binding and precipitation, will be reduced or loss of efficacy.

在多数情况下,医学界不主张用茶水服药,尤其是硫酸亚铁、碳酸亚铁、枸橼酸铁胺等含铁剂喝氢氧化铝等含铝剂的西药,遇到茶汤中的茶多酚类物质与金属离子结合而沉淀,会降低或失去药效。

First use soap-free emulsion preparation for polystyrene spheres, and the kernel, Reuse are silicon acetic tetraethyl ortho-silicate in ammonia catalytic hydrolysis, formed under the condition of silica, charged by six water or their cerium, six of methylene amine solution HMT (4) into the negatively charged, uniform cerium oxide coated surfaces to PS microspheres, core-shell structure of PS - CeO2 and PS - SiO2 composite microspheres.

首先用无皂乳液制备了聚苯乙烯微球,并以此为内核;再利用正硅乙酸乙酯在氨水催化条件下水解,形成带负电性的二氧化硅,或者利用六水亚硝酸铈、六亚甲基四胺水溶液分解出带负电性的氧化铈,均匀的包覆到PS微球表面,形成核-壳结构的PS-CeO2和PS-SiO2复合微球。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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