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1·Determine carboxyl content with Fourier infrared spectrum instrument.

用傅立叶红外光谱仪测定羧基含量。

2·In each factor, carboxyl content within the range is increased and the trend.

在各个因素变化范围内，羧基含量均呈先上升后下降的趋势。

3·We also found that Datong coal contains more phenolic hydroxyl and less carboxyl.

红外分析表明大同煤中羧基含量很少，酚羟基含量较多。

4·Objective: To observe the effect of carboxyl-amino-polysaccharide on the gastric ulcer.

目的观察羧基化氨基多糖药物抗胃溃疡的作用。

5·The reasons for the carboxyl end group fluctuation of bottle grade PET base chips were analysed.

对瓶用基片端羧基波动的原因进行了分析。

6·Results are showed as follows. Ethanol is the best medium for the reaction of carboxyl methylation.

结果表明，乙醇是作为羧甲基化反应的合适介质。

7·The contents of carboxyl, phenol hydroxyl, and lactones groups on carbon black surface have been determined.

同时测定了炭黑表面羧基、酚羟基、内酯基等酸性含氧基团的含量。

8·Results indicate the metal ions have coordinated with thereinto glucose, hydroxy, carboxyl, amidocyanogen etc.

结果表明金属离子与其中的葡萄糖基、羟基、羧基、胺基等配位基发生了配位反应。

9·The properties of alkane surfactant with carboxyl were studied in order to prepare ultrafine flake zinc powders.

摘要以制备超细鳞片状锌粉为目的，对羧酸烃类表面活性剂进行了研究。

10·An anhydride formed by the removal of a water molecule from the hydroxyl and carboxyl radicals of hydroxy acids.

一类弱酸性有机合成物，分子中含有一个或更多羟基。

羧基

1·Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid and the amino group of another.

肽一种自然或人工的合成物，包括二个或二个以上氨基酸，通过一个氨基酸的酸基和另一个的羧基结合而成。

2·Chemical modification studies showed that the sulfhydryl, guanido, amino, carboxyl and indolyl groups may participate in the active center of the enzyme.

化学修饰实验发现：巯基、胍基、氨基、羧基和吲哚基可能参与酶活性中心的组成。

3·A model analytical chip was prepared by coupling 4 phage antibody clones from mouse and 1 clone from human to the surface of carboxyl terminated silicon.

将4个鼠源噬菌体抗体克隆和1个人源噬菌体抗体克隆偶联到羧基终止的硅片表面，制成分析型模型芯片。

4·The grafting mass percent of connect black is more than of furnace black because of difference in carboxyl group content.

由于表面羧基含量的差异，接触法炭黑可以获得比炉法炭黑更高的接枝率。

5·Determine carboxyl content with Fourier infrared spectrum instrument.

用傅立叶红外光谱仪测定羧基含量。

羧

1·Results are showed as follows. Ethanol is the best medium for the reaction of carboxyl methylation.

结果表明，乙醇是作为羧甲基化反应的合适介质。

2·Carboxyl methyl starch sodium (CMS) is extensive applied in many fields of industrial production with its unique performance and hig her economic benefits as a kind of important chemical auxiliary.

羧甲基淀粉钠(CMS)作为一种重要的化工助剂以其独特的性能和较高的经济效益在工业生产的各个领域有着广泛的应用。

3·The dye has introduced carboxyl benzyl radical and thus improved light stability, enhanced fluorescent performance and lowered production cost.

该类染料由于羧苄基的引入，增加了光稳定性，提高了荧光性能，降低生产成本。

(1)carboxyl group羧基