查询词典 benzoquinone

The results showed that the amorphous iron oxide has highly catalytic activity. The intermediate products are pyrocatechin, hydroquinone, benzoquinone and low-grade fatty acid. The mechanism of catalyst oxidation is assumed that the free radical OH attacks benzene cycle at the adjacent position and para-position of OH on phenol so that the benzene cycle is opened and low-grade fatty acid is produced and transformed into CO2 and H2O.

结果表明，非晶铁氧化物催化剂在催化氧化降解苯酚时具有较高的催化活性，苯酚降解的中间产物有：对苯二酚、邻苯二酚、苯醌和低级脂肪酸，其降解机理是羟基自由基攻击苯环上OH的部位或对位而使苯环开环，生成低级脂肪酸，并最终转化成二氧化碳和水，从而使苯酚得以降解。

Analysis of the treated aqueous solution was conducted with GC-MS,and the main intermediates during phenol degradation were isobutyric acid,malonic acid,benzoquinone,butenoic acid,oxalic acid,maleic acid,succinic acid,hydroquinone,catechol and resorcin.

利用GC-MS分析了苯酚降解主要中间产物为异丁酸、丙二酸、对苯醌、丁烯酸、乙二酸、顺丁烯二酸、丁二酸、邻苯二酚、对苯二酚及间苯二酚等，并据此推测了苯酚电催化氧化的可能反应途径。

In CD3CN, triethylamine donated electron to 2-chloro-5-methoxy- p-benzoquinone to form charge transfer complex.

本文利用CIDNP技术对以下三个反应体系的光照反应进行了研究，提出了较为合理的反应机理解释。

The main intermediates were also identified by GC-MS, and they were organic acid and benzoquinone.

GC-MS分析表明，苯酚降解的中间产物主要为苯醌和有机酸。

The main intermediates were also identified by GCMS,and they were organic acid and benzoquinone.

GCMS分析表明，苯酚降解的中间产物主要为苯醌和有机酸。

The proton exchange of the polarized benzoquinone radical in solution c ontained sulfuric acid was studied.

研究了含硫酸溶液中极化的苯醌自由基与溶液中的质子发生的交换现象。

In p - benzoquinone solution with ethylene glycol as solvent,emission lines from PBQH'and R2 were obtained.

实验结果指出，在乙二醇溶液中得到苯半醌自由基和以碳为中心的自由基_2。

Photochemical reactions of benzodioxoles with benzoquinone was investigated by photo-CIDNP technique.

光照的1H化学诱导动态核极化技术用于研究胡椒基类化合物与苯醌的光化反应。

A new method for preparing Ag-Hg microring electrodes by chemical plating is presented and the cyclic voltammetric waves of benzoquinone on SMRE are described in this paper.

根据不同扫描速度时还原波的峰电流值可以计算得到苯醌的扩散系数(D_0)值。n和D_0的测定结果与文献值相一致，所得到的实验结果与理论相符合

Accordingly, in the original reaction (formation of B from cyclopentadiene and benzoquinone) Diels and Alder found only one of the following six conceivable stereoisomers of B.

因此，在该原始反应中(即通过P-苯醌和过量的环戊二烯生成B)，Diels and Alder发现在他们推测的六个立体异构中，只有一个出现。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。