官能团

Besides the organic functional groups absorbed on its surface, nanometer diamond powder contains a few graphite and SiO〓.

除表面吸附的有机官能团外，其主要杂质相为石墨和SiO〓。

PAN-ACF was modified by different methods, such as heat oxidation, nitric acid dipping and hydrogen peroxide dipping, the characteristics changes of the PAN-ACF before and after modification such as kinds of surface functional groups, amounts of oxygen function groups, surface microstructure and specific surface were analyzed by FT-IR, Boehm.

采用热氧化、硝酸浸渍、过氧化氢浸渍等方法对聚丙烯腈基活性炭纤维进行改性处理，使用FT-IR、Boehm滴定法、SEM、BET等分析技术表征了改性前后PAN-ACF表面官能团种类、含氧基团数量、表面微观结构及比表面积等表面特性。

The results showed that adsorption amount of three adsorbates increased with the time, while saturation adsorption amount and time to arrive were different.

氧化处理后，活性炭纤维表面含氧官能团发生变化，对乙醇的吸附量增加18%，而对N-甲基吡咯烷酮的吸附量提高了300%。

The FTIR spectroscopic analysis reveals that the chemical structure of biomass has changed obviously after hydrogenating extraction in which the content of alkyls and aromatic structures obviously increased and the oxygen functional groups, mainly including carbonyls and hydroxys, decreased.

傅里叶变换红外光谱分析表明，经过加氢萃取，生物质的化学结构发生了明显的变化，饱和烃基和苯环结构增加，含氧官能团减少。

Preliminary studies on affinity isolation based on the specific combination between Biotin and Avidin Presently, affinity chromatography is increasing to be a main protein isolation and purification technique for a complicated system because of its high specificity, high rate of recovery, etc.

利用生物素和抗生物素蛋白间的特异性结合作用，将生物素通过化学反应键合到蛋白质的某种官能团上，酶解后的肽段通过固定了抗生物素白蛋白的亲和分离凝胶色谱柱，可以选择性地分离生物素化的肽段，达到简化复杂体系的目的。

Furthermore, during the above synthetic studies, we also found sodium amalgam was a useful agent for reducing azide to amine, which was applicable for various alkyl and aryl azides bearing different functional groups.

另外，我们还对实验中意外发现的钠汞齐还原叠氮的反应进行了研究，考察了考察了带有不同官能团的叠氮化合物在此体系下的还原反应，取得了较好的结果，发展了一种新的还原叠氮的方法。

A facile one-step method waspresented for the synthesis of N-fluoroalkanesulfonyl amidines 〓 inmoderate to good yield from the reaction of azides, ketones or aldehydes, andsecondary amines at room temperature.

在和无官能团取代的烯胺化合物的反应中，它发生了烷基迁移过程，而且利用该反应我们实现了由酮或醛，二级胺和叠氮一锅法合成脒类化合物〓。

The chemistry of CAPAs was almostunexplored since it was proposed in a prebiotic reaction of inorganic polyphosphates with amino acids.

氨基酸-磷酰胺内酸酐(Cyclic acylphosphoramidates，简称CAPAs)是一种集磷酸-羧酸混酐和磷酰胺两个官能团于一身的磷酸活化的氨基酸。

Cyclic acylphosphoramidates (2-hydroxy-2-oxy-1,3,2-oxazaphospholidine-5-ones,CAPAs) are phosphate activated amino acids possessing both a carboxyl-phosphorylanhydride and a phosphoramidate bond in a ring.

氨基酸-磷酰胺内酸酐(Cyclic acylphosphoramidates，简称CAPAs)是一种集磷酸-羧酸混酐和磷酰胺两个官能团于一身的磷酸活化的氨基酸。

It showed that KOH and phosphoric acid were effective catalyzers,both could increase the yields of pyrolysis liquid and solid products,and as well as raised amount of surface functional group remar...

结果表明，KOH和磷酸是有效的催化剂，均能有效提高裂解液、固体产物得率，使竹炭表面含氧官能团显著增加。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。