羟基

Low concentration saponins solution can eliminate hydroxy and oxygen free radicel, the effect of eliminating free radicel submits positive pertinence with saponins concentration.

皂甙溶液在较低浓度时对羟基自由基与氧自由基就有一定的清除作用，自由基的清除效果与皂甙的浓度呈显著正相关性。

The results show that: the functional groups in coal are the function of coal rank , and the yields of CO 2, H 2O and CO are related to the content of carboxyl, hydroxyl and other oxygen containing groups such as ether groups in coal, and Tar and CH 4 are related to the aliphatic CH, the char yields to the aromatic CH.

借助化学分析和FTIR光谱分析对我国煤化程度不同的18 种煤中官能团的研究表明：煤中官能团含量与煤化程度有关；煤中羧基、羟基及醚键等其他含氧官能团的含量与热解生成物CO2、H2O 和CO 的产率有关，脂肪—CH 的含量与甲烷和焦油的产率相关联，芳香—CH 的含量与热解半焦产率有关。

The method has been successfully applied to the determination of salicylic acid and resorcinol in Dermatitis Clear Tincture and p-hydroxybenzoic acid in apple juices.

应用此方法，成功测定了皮炎呤酊剂中的间苯二酚和水杨酸以及苹果汁中的对-羟基苯甲酸。

Inhibition to biological treatment process by seven naphthalene derivatives was investigated with Rank Cell respirometer, and all the test chemicals were proved to be potential inhibitors to both activated sludge process and nitrification at different level.

用Rank Cell呼吸仪研究了2-萘酚、1-萘胺、5-氨基-1-萘酚、1-氨基-4-氯萘、2-萘磺酸、2-氨基-1-萘磺酸和7-氨基-4-羟基-2-萘磺酸等七种萘系列有机化合物对生物处理过程的抑制，证明被测化合物对活性污泥过程和硝化过程均有不同程度的抑制作用。

The degradation process of Rhodamine B, which is refractory to degrade, is investigated with two-dimension-electrode method and three-dimension-electrode method.

采用二维和三维电极法研究了羟基自由基的发生过程及其对公认的难降解的罗丹明B染料废水的降解作用。

Phenol: Any of a class of organic compounds with a hydroxyl group (-OH; see functional group) attached to a carbon atom in a ring of an aromatic compound.

酚：以羟基(-OH；参阅functional group)与芳香族化合物环上的碳原子相连为特征的一类有机化合物。

The article is summarized as follows to its namely. 1 manage changes property Tekturna piece in advocate composition A Li Kelun exists with the form of acerbity salt of half rich horse, chemical name is (2S, 4S, 5S, acyl of 7S)-N-(2- amino armour base - 2- methylic propyl)- 5- amino - 4- hydroxyl - 2, 2 different of 7- propyl - 8-4- armour oxygen - 3-3- armour...

本文即对其概述如下。1理化性质Tekturna片中主成分阿利克仑以半富马酸盐的形式存在，化学名为(2S，4S，5S，7S)-N-(2-氨基甲酰基-2-甲基丙基)-5-氨基-4-羟基-2，7-二异丙基-8-4-甲氧-3-3-甲。。。

6β-santonin could be selectively reduced and hydroxylated by the cell suspension cultures of P.acinosa, which would provide valuable intermediates for its further structural modification.

结论利用商陆培养细胞可对6β-santonin进行选择性还原及羟基化反应，可为其进一步化学结构改造提供有价值的中间体。

Sapogenin used by industry but most yams, from which it is isolated, contain a mixture of sapogenins in the glycosidic form.

大多数苷元在C24或C28位有COOH基，故又称酸性皂苷；少数苷元只含醇羟基而呈中性，如人参皂甙、柴胡皂甙等。

At these certain times of day, this process could boost concentrations of the atmospheric scrubber by 50%, he says.

辛那说道，"在一天中的这些特定时间段，该反应可以使羟基增多50%。"

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。