羟基

The effect of hydroxylation of proline and the molecular weight range of gelatin on the relative abundance of marker peptides were also investigated.

实验进一步对羟基化修饰和明胶分子量范围等影响多肽识别的因素进行研究。

A series of Ni-based catalysts with different supports were prepared by impregnation method and tested in the hydroxylation of benzene to phenol.

本文利用浸渍法制备了一系列不同载体的镍基催化剂，并将其用于苯的羟基化反应。

The catalytic activity was characterized by the reaction of hydroxylation of phenol.

并用苯酚羟基化合成苯二酚作为探针反应，考察了TS-1膜的催化活性。

In chapter 3, Fe-EDTA chelate-induced aromatic hydroxylation of terephthalate as a new method for the evaluation of hydroxyl radical-scavenging ability was studied.

第三章利用Fe-EDTA引发对苯二甲酸芳环羟基化反应建立了一种评价抗氧化剂清除·OH能力的新型荧光分析法。

The state of Cu species determine the catalytic performance in hydroxylation of benzene.

从XRD、UV-vis和H_2-TPR表征结果可见，催化剂制备中的焙烧温度、Cu的负载量和ZSM-5的硅铝比可以改变Cu物种与载体的相互作用强弱及Cu物种的分散状态，是影响催化剂苯羟基化反应性能的重要因素。

Under these conditions, photodegradation of MO mainly involves three intermedial processes: demethylation, methylation and hydroxylation.

其中，最先发生的是脱甲基化反应，而生成产物最多的是羟基化反应。

In the frist part, it was simply summarized that the application of microbial transformation and the two important reactions:side chain cleavage and hydroxylation of steroid respectively.

第一部分，首先对微生物转化技术的应用和两个重要的甾体转化反应-甾体边链降解反应和甾体羟基化反应进行了简要综述。

In this dissertation, we studied the catalysts, reaction conditions and mechanism of one-step hydroxylation of benzene to phenol oxidized by molecular oxygen, which is the cleanest and the most economical process.

所以近年来作为一条比较经济的路线，以苯为原料经过一步氧化，直接羟基化生产苯酚的反应吸引了各国研究者的广泛关注，这也是催化化学中最为艰难、最具有挑战性的研究课题之一。

The oxides with spinel and peroskite structure are the key active components for phenol hydroxylation, and higher contents of them have the higher reaction activity.

形成的尖晶石或钙钛矿结构为苯酚羟基化反应的活性相，具有良好晶态的复合氧化物催化剂的反应活性较高。

Basal oxypurines (xanthine, hypoxanthine, and urate) rose with FA pretreatment but increased less during ischemia than in controls.

以FA预处理后基础羟基嘌呤(黄嘌呤，次黄嘌呤和尿酸盐)增加了，但缺血组却比对照组增加要少。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。