乙酰丙酮

The voltammetric behavior of Pb facilitated by dithizone (DzH2) across the water/acetylacetone interface was investigated by cyclic voltammetry.

用循环伏安法研究了双硫腙络合推动Pb2＋在水/乙酰丙酮界面迁移的伏安过程。

Instructed by this method, the structure-reactivity relation of the oxidation reaction catalysts was found and a way was proposed to enhance the catalytic ability of traditional acetylacetone catalysts by supporting them on ionic liquid.

在该方法的指导下，发现了氧化催化剂结构活性关系，提出了一套用离子液体支载来提高乙酰丙酮金属催化剂催化氧化活性的方案。

Supporting the acetylacetone on ionic liquid was established for the purpose of catalyst recycling. The following works focused on what kind of supporting methods can enhance the catalytic ability of acetylacetone.

从提高催化剂可回收性方面考虑，论文计划将乙酰丙酮支载在离子液体上，接下来研究采用怎样的离子液体如何支载能够提高催化剂的催化氧化活性。

These new ionic liquid-supported acetylacetone catalysts were used for the oxidation of the intermediates of Vitamin E (2,3,5-trimethylphenol and 3,5,5-trimethylcyclohex-3-en-l-one). It not only checked the rationality of the design, but also established the base for the green oxidation of corresponding reactions.

论文进一步将此类离子液体支载乙酰丙酮金属催化剂应用于维生素E中间体三甲基苯酚和β—异佛尔酮的氧化过程，一方面检验了催化剂设计过程及结果的可靠性，另一方面为相关氧化反应的绿色化改造提供相关的基础。

The DSC and FTIR techniques were utilized to analyze the thermal evolution process of the PZT gelation powder with and without acetylacetone agents and the physicochemistry changes of the PZT powders from amorphous to crystal phases.

用DSC和FTIR技术分析了有无乙酰丙酮螯合的两种PZT凝胶粉末的热演化过程；分析了PZT由无定型相向结晶相转化过程中发生的物理化学变化。

We had to give uP it. We began to synthesize another i ntermedi at6,benzal dehyde.

因此，我们采用了合成另一中间体苯甲醛来替代乙酰丙酮的合成。

A process for the carbonylation of allylic butenyl ether (for example, methyl crotyl ether, 3-methoxybutene-1 and mixtures thereof) or mixture of butadiene and alcohol and production of beta-gamma unsaturated carboxylic acid esters (for example, methyl-3-pentenoate) utilizing a rhodium-containing catalyst for example, dicarbonylacetylacetonate rhodium(I or the like promoted with an iodide-containing compound (for example, HI, AlI3, SnI4, TiI4, CrI3, and CoI2 or the like).

一种将烯丙型丁烯基醚(如甲基巴豆基醚、3－甲氧基丁烯－1及其混合物)或者丁二烯与醇的混合物羰基化的方法，以及由含碘化物化合物(如HI、AlI3、SnI4、TiI4、CrI3和CoI2或等效物)促进，用含铑催化剂如二羰基乙酰丙酮酸铑(I或其等效物制备β－γ不饱和羧酸酯(如甲基－3－戊烯酸酯)的方法。

Use tertiary system method to screen and optimize JLNCAO substrate, and use heat and dry under atmospheric pressure method, ignition residue method, The Casparian law of trace nitrogen, acid...

运用三级系统筛选法对菌草培养基进行筛选优化；用常压加热干燥法、灼烧法、微量凯氏定氮法、酸性洗涤剂法、氨基酸自动分析仪、原子荧光光谱和原子吸收光谱、乙酰丙酮法和热水提取多糖法分别对菌草香菇和木屑香菇的水分、灰分、蛋白质、纤维素、氨基酸、重金属、甲醛、香菇水溶性多糖等的含量进行比较研究。

Finally, the formaldehyde content of the raw material, semi-product and final beer was determined by the method of diacetyl distillation instrutment in this paper.

本文比较了甲醛测定的几种方法，例如乙酰丙酮法、AHMT法以及液相色谱法，最终采用AHMT法对啤酒生产的原料、半成品及成品啤酒中的甲醛含量进行了测定。

Manganese oxides supported on SBA-15 Mn(subscript xO/SBA-15 were prepared by incipient wetness impregnation of SBA-15 with furfuryl alcohol solution of manganese acetylacetonate or manganese nitrate followed by removal of the carbon resulted from carbonized FA.

采用溶液浸渍法将乙酰丙酮锰或硝酸锰的糠醇溶液分别灌注到SBA-15的孔道内，一定条件下将糠醇碳化后再将碳烧除，即可得到高度分散的MnO/SBA-15复合催化剂。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。