carboxyl

1. 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。
2. A cationic natural organic high polymer flocculant was obtained by means of reaction of carboxyl methyl with guar.
   对瓜尔胶进行羧甲基化改性，得到一种天然高分子有机絮凝剂。
3. The effects of the length of alkyl-chain, the polar group and the number of carboxyl group on rust-inhibiting properties and solubility were investigated in systematically.
   合成并研究了水溶性有机羧酸醇铵盐类防锈剂，系统地考察了烷链的长度、极性基团、羧基的个数对防锈性能和溶解度的影响。
4. Treat a chemical compound with carboxyl or carboxylic acid.
   用羟基或羧基酸化合物进行处理。
5. This complex has a3D framework supramolecular structure due to the coordinated water molecules via hydrogen bonds to the oxygen atoms of the carboxyl groups.
   结果表明，该化合物通过配位水分子和羰基氧原子间的氢键作用，形成了三维超分子结构。
6. Syntheses, Structures and Performances of Coordination Polymers with Carboxyl and N-containing Heterocyclic Ligands
   含羧酸与氮杂环配体的配位聚合物的合成、结构及性能
7. Synthesis of Carboxyl Methyl Cellulose and Methyl Methacrylate Graft Copolymers Research on Development of Aromatic Carboxylic Coordination Compounds
   羧甲基纤维素&甲基丙烯酸甲酯共聚物的合成芳香羧酸（苯基多羧酸）配合物研究进展
8. Degradability of Poly(ε-caprolactone) Bearing Pendant Carboxyl Groups In condensation polymerization, each monomer unit must have at least two functional groups.
   含侧羧基官能团的聚（ε-己内酯）降解性能的研究在缩聚反应中，每个单体至少要有两个官能团；
9. Synthesis of carboxyl methyl guar flocculant and its flocculating property
   羧甲基瓜尔胶絮凝剂的合成及其絮凝性能研究
10. Carboxyl Reduction The carboxyl groups of all amino acids undergo organic reactions leading to the formation of amides, esters, and acid halides.
    羧基还原所有氨基酸的羧基基团，都能进行有机反应，并可形成酰胺化合物，酯和卤化物。
11. The results indicate that carboxyl group is strongly interacted with MMT.
    试验结果表明，羧酸基团与MMT有很强的相互作用。
12. Each fatty acid consists of a hydrocarbon chain with a carboxyl group at one end.
    每个脂肪酸由一端带有一个羧基的碳酸链组成。
13. Synthesis and Characterization of Poly ( Aromatic Ether Ketone) Containing Side Carboxyl
    含羧基侧基聚芳醚酮树脂的合成与表征
14. Recombinant human-like collagen with a hexahistidine tail attacked to the carboxyl end could be purified by Metal-chelated affinity adsorption.
    本研究对利用金属螯合亲和方法纯化重组类人胶原蛋白的吸附条件进行了优化。
15. Containing two carboxyl groups per molecule.
    二羧基的每个分子中含有两个羧基的。
16. Synthesis and Characterization of Magnetic Polymer Microspheres with Surface Carboxyl Groups
    含羧基的磁性高分子微球的制备和表征
17. Introduction Carboxyl Group to Vinyl Chloride-Vinyl Acetate Copolymer in Aqueous Phase
    氯乙烯-醋酸乙烯酯共聚物在水相中的羧基功能化
18. The effect of the amount of hydrogen-peroxide and catalyst, reaction time and amount of water on the carboxyl content was investigated.
    考察了氧化剂用量、催化剂用量、反应时间和水用量对氧化淀粉羧基含量的影响。
19. 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。
20. Mechanism of Carboxyl and Carbonyl Groups in Carrier Surface of Catalyst for Vinyl Acetate Synthesis
    乙炔法合成醋酸乙烯催化剂载体表面羧基与羰基作用机理的研究
21. Structure and properties of polycaprolactone-based polyurethane dispersion with sulfo group or carboxyl in soft segment
    软段含磺酸基或羧基的聚己内酯型聚氨酯分散体的结构与性能
22. An increase in hydrogen ions within cell walls would decrease ionization of carboxyl groupings of the cellulosic fraction.
    细胞壁内部氢离子浓度的增高，能够降低部分纤维质羧基的离子化作用。
23. ( chemistry) relating to or containing the carboxyl group or carboxyl radical.
    （化学）含有或包含羧基。
24. An organic acid characterized by one or more carboxyl groups.
    具有一个或多个羧基的有机酸。
25. The corn starch was modified into oxidized starch containing both carboxyl and aldehyde groups by chemical method, which provided a new clean tanning agent for leather industry.
    利用两步氧化法，首次将玉米淀粉改性为同时含羧基和醛基的氧化淀粉，为制革工业提供了一种新型的清洁化鞣剂。
26. This paper reports an improved headspace gas chromatographic method for determination of carboxyl group content in wood fibers.
    报道了一种应用顶空气相色谱测定纸浆纤维羧基含量的方法。
27. Preparation of Alkyl Functionalized Multi-walled Carbon Nanotubes Using the Esterification of Bromoalkane and Carboxyl Group
    通过溴代烷烃和羧基的酯化反应制备烷基改性的多壁碳纳米管
28. Objective: To prepare oxidized cellulose from the natural cellulose and to evaluate its quality through structure, carboxyl content and bioabsorbability.
    目的：将天然纤维素氧化制得氧化纤维素，并对氧化纤维素的羧基含量、结构和可吸收性能进行研究。
29. These sites include, carboxyl, epoxy, amino and the like.
    这些部位包括羧基、羰基、环氧基和氨基等。
30. Schiff's bases are intermediates in a number of enzymatic reactions involving interaction of the enzyme with amino or carboxyl groups of the substrate.
    希夫碱是许多酶参与的氨基和羧基的反应中的中间产物。

noun

1. the univalent radical -COOH

   Synonym:    carboxyl group

adj

1. relating to or containing the carboxyl group or carboxyl radical

   Synonym:    carboxylic