查询词典 catalyzer

The research development of β-diketo in costabilizer field,luminescence field,catalyzer field and extraction field was reviewed.

对β-二酮类化合物在热稳定剂领域、发光领域、催化领域、萃取领域的研究进展进行了综述，并对β-二酮类化合物的发展方向和应用前景提出了自己的见解。

For determination of pyruvic acid, we used the ferrocene as an electron transfer mediator and pyruvate oxidase as a catalyzer, and had a systemic research for the immobilization of ferrocene and enzyme on the gold electrode. At last, a pyruvic acid biosensor with good stability and activity of electrochemistry and biocatalysis was constructed. There are two aspects of contents in the paper. The first step, we had an in-depth research for the immobilization of ferrocene on the gold electrode, and fabricated a modified gold electrode by glutaric dialdehyde cross-linked egg white as the matrix of ferrocene immobilization.

本文以研制一种通过对酶催化反应引起的电化学响应进行检测，从而实现对丙酮酸浓度进行检测的方法为目的，选择了二茂铁为电子传递介体，丙酮酸氧化酶为酶催化剂，并对将上述物质固定到金电极表面从而制成一种新型的生物传感器的方法进行了系统而全面的研究，并制得了一种全新的具有良好电化学与生物催化活性和稳定性的丙酮酸生物传感器。

Beckmann rearrangement reaction is that amide is formed by ketoxime under the condition of acid catalyzer.

酮肟在酸性催化剂作用下，生成酰胺的反应称为&贝克曼重排反应&。

Five chalcones were synthesized via the aldol condensation reaction of acetophenone or parasubstituted acetophenones with 1-phenyl-3-methyl-5-phenoxyl-pyrazol-4-aldehyde, which reacted with two kinds of hydrazine in glacial acetic acid under refluxing to give a series of bipyrazoline derivatives. In this synthetic course, glacial acetic acid is not only a solvent, but also a catalyzer.

以1-苯基－3-甲基－5-苯氧基－吡唑-4-甲醛为原料，与苯乙酮发生羟醛缩合，生成相应的查尔酮，再在冰醋酸中与不同的肼反应，高产率的合成出10种新的5位含1-苯基－3-甲基－5-苯氧基－吡唑基的吡唑啉类衍生物。

Synthesis experiments of butyl acetate were done with ammonium ferric hydrogen phos- phate as catalyzer.

以硫酸亚铁和磷酸二氢铵为原料，以聚乙二醇-400（PEG-400）为表面活性剂，经低热固相反应合成得到磷酸氢铁铵，经XRD分析表征证实了产物的分子式为（NH4）Fe（HPO4）2。

The studies on analysis of the product shew GC analysis had better stability and recurrence.Column temperature was set 100℃ for 1 min and was programmed at 16℃/min to 260℃,then 10℃/min to 330℃,last at 5℃/min to 370℃. Results of study on different catalyzers shew phosphotungstic acid was the best catalyzer.

产物的分析测试研究表明：GC分析比RP-HPLC法的稳定性和重复性好，适宜的操作条件为：柱温在100℃下维持1分钟，先以16℃/min升到260℃，然后以10℃/min升到330℃，再以5℃/min升到370℃。

To the product yield is mainly studied in the brominating process, and the best synthesizing process conditions is obtained; the effect of the selection, quantity of the solvent, the reaction temperature, reaction time, and the catalyzer to the product yield is researched in the process of ketalization and the relative preferable process conditions has been got.

在脱溴反应中，主要研究了溶剂的用量、溶剂配比、物料配比、反应时间和反应温度等对目标产物得率的影响；在选择性溴化反应中，主要研究了溶剂和溴化剂的选择、物料配比、溶剂的用量等参数对产物质量和得率的影响，最终得到了合成的最佳工艺条件；在缩酮化反应中，主要研究了溶剂的选择、溶剂的用量、反应温度、反应时间和催化剂的选择等参数对产物得率的影响，并得到合成的较佳工艺条件。

Starch stearate was synthesized from wheat starch, stearic acid as esterifying agent, and hydrochloric acid as catalyzer under dry condition.

以小麦淀粉为原料，硬脂酸为酯化剂，盐酸为催化剂，在干法条件下合成硬脂酸淀粉酯。

The interface lattice misfitting theory cannot be used to explain that ZrC, TiC, TiN, as catalyzer, are better than TiO during heterogeneous nucleation of Au liquid.

异质形核是凝固领域的核心问题之一，界面共格对应理论无法解释金液滴异质形核过程中ZrC，TiC，TiN等基底的触媒作用优于TiO的现象。

The interface lattice misfitting theory can not explain that TiC and CaS act as an efficient catalyzer during the non-equilibrium solidification of austenite steel .

利用界面共格对应理论无法解释奥氏体钢非平衡凝固过程中TiC、CaS为奥氏体枝晶有效异质核心的现象。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了