查询词典 carboxyl

Compounds which possess active hydrogen atoms, include those which contain hydroxyl, carboxyl, mercapto, primary and secondary amino groups, carbonamido, sulphonamido, and reactive methylene or imide groups.

化合物具有活性氢原子，包括那些含有羟基，羧基，巯基，小学和中学氨基，carbonamido，sulphonamido，和活性亚甲基亚胺或团体。

1H-NMR and UV analysis show that, after reaction, benzene ring in the structure unit of the alkali lignin is steady, carboxyl, carbonyl and methoxyl all have reduced in different extent, while aliphatic and phenol hydroxyl have increased.

1H-NMR和UV光谱分析显示反应后碱木质素的结构单元中苯环结构稳定，羰基、羧基、甲氧基有所减少，醇羟基和酚羟基的量增加了。

It was found from FTIR analysis of lignin that the absorption intensity of carboxyl group and methoxyl group increased obviously, the absorption peak of phenolic hydroxyl increased slightly.

通过对木素进行红外光谱解释得知，浆料经二氧化氯漂白和氧脱木素后，代表羧基的1701～1718cm〓峰强度显著增强，代表游离酚羟基的3420cm〓峰强度稍有增强，代表甲氧基的1266cm〓处吸收峰减弱。

The method uses carboxyl methylic cellulose sodium spreads out an agent to be chloroform as bind agent;- acetone (7:3); Chan Bo grows linear scanning law to determine,λ S=360 Nm.

方法采用羧甲基纤维素钠作为黏合剂；展开剂为氯仿-丙酮(7：3)；单波长线性扫描法测定，λS=360 nm。

The chemical analysis result of modified lignin by alkaline-oxygen treatment is as following:The chemical analysis result of modified lignin by alkaline-oxygen treatment showed that the carboxyl group of modified lignin increased, since muconic acid type structure were generated from phenolic structure by ring-open reaction during alkaline-oxygen treatment.

氧碱处理改性木素的化学分析结果见下表；┌────┬────┬─────┬────────────────┬────┐│改性本素│OCH_3│总糖│C_9单元式│COOH │├────┼────┼─────┼────────────────┼────┤│O_4 │8.49 │0.07 │C_9H_(10.45)O_(3.7)(OCH_3)_(053)│10.82 │└────┴────┴─────┴────────────────┴────┘氧碱处理改性木素的化学分析结果表明，改性木素的羧基含量明显增加，在氧碱处理的过程中，由于芳环的开裂，(来源：ABCe6论6d文网www.abclunwen.com)形成了己二烯二酸结构，因此改性木素具有较高的反应活性，易与Al~(3+)形成络合。

DFT Study on Heterobinuclear Cu-Co Complex of N,N'-bis (3-carboxyl Salicyl Aminal Ethylene) Oxalamide

篇名 N，N'-双（3-羧基水杨醛叉缩胺乙基）草酰胺Cu-Co异双核配合物的密度泛函研究

The results of analysis showed that the DBD was more suitable for oxidizing carbon black than RF. Because carbon black oxidized by DBD had a lot of single oxygenous functional group,carboxyl,which could be used to graft antitumour medicine and could be well dispersed in water.

通过对氧化后炭黑性能的分析测试得出以下结论：DBD 工艺优于RF 工艺，经DBD 氧化改性的纳米炭黑含氧官能团多，官能团单一，在水中的分散稳定性良好，为高选择性地进行药物接枝反应创造了条件。

The results showed that terephthalic acid in the carboxyl oxygen and the phenanthroline nitrogen atoms with transition metal ions (Co2 +, Cu2 +, Fe3 +) coordination.

结果表明，对苯二甲酸中羧基氧和邻菲罗啉中的氮原子均与过渡金属离子（Co2+、Cu2+、Fe3+）配位。

Subsequent ACE inhibitors were designed with a carboxyl zinc ligand (enalapril, lisinopril, quinapril, ramipril, cilazapril, perindopril) or a phosphinic acid zinc ligand.

后来的ACE抑制剂都设计了一个羧基锌配体（依那普利，赖诺普利，喹那普利，雷米普利，西拉普利，培哚普利）或是一个磷酸锌配体。

Fourier transform infrared spectra showed the present of phospho, amino, hydroxyl and carboxyl group in MBF7 and the average molecular weight of MBF7 was estimated to be in the magnitude of 3×10^5 Da by gel permeation chromatography.

采用FTIR方法测定，MBF7由磷酸根、氨根、羟基和羧基等活性基团组成；通过凝胶色谱法得出此微生物絮凝剂分子量大约在3×10^5Da。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。