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- Modified starch - Determination of carboxyl group content of oxidized starch 改进的淀粉。氧化淀粉中羟基团含量的测定
- Keywords conductometric titration;oxidizing modified product of Wattle extract;content of carboxyl group; 羧基含量;黑荆树皮栲胶降解产物;电导滴定;
- Determination of Carboxyl Groups Content of Various Pulp Suspension 不同纸浆羧基含量的测定
- content of carboxylic group 羧基含量
- 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。
- 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。
- Through researching into the detecting method of the content of carboxylic acid salt, we set up two kinds of adaptive methods: DDC colorimetry method and parvafacies method. 对新的检测方法评价结果表明,该方法准确度高、精密度好、加标回收率好;
- Increasing the number of carboxyl group or ester branched chain, as well as inserting nitrogen or oxygen element into the backbone of the molecules of polycarboxylates could improve their biodegradability, and the latter was especially effective. 研究结果表明 ,增加聚羧酸阻垢剂分子结构中羧基的数目、酯基支链以及向主链中插入氮、氧元素 ,均可提高其可生物降解性 ,后两种方法特别有效。
- The changes of viscosity curves taking place during the post-neutralized process are caused by the electro-dissociation reaction of carboxyl group on the latex surface and the solid contents, etc. 证实了后处理过程中体系粘度的曲线变化，属于树脂胶乳中羧基的电中和反应所为。
- During green liquor pretreatment-kraft pulping process,both pretreatment and kraft cooking variables influence the carboxyl groups content of the pulp. 绿液预处理和硫酸盐蒸煮工艺参数影响纸浆的羧基含量。
- During green liquor pretreatment-kraft pulping process, both pretreatment and kraft cooking variables influence the carboxyl groups content of the pulp. 绿液预处理和硫酸盐蒸煮工艺参数影响纸浆的羧基含量。
- The pH is equal to the of the carboxyl group. 等于羧基pKa的pH
- 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。
- The introduction of a carboxyl group into a compound or molecule. 羧化把一个羧基引入一个化合物或一个分子
- Comparison between the spectra of HOA and fulvic acids (FA) indicated that both contained a large amount of carboxylic groups and that the former contained more carbohydrates and less aromaticity. 疏水酸性组分 (HOA)的结构特征相似于土壤FA ,含有大量羧基 ,但与FA相比芳香族物质减少 ,碳水化合物增多 ;
- The content of carboxylate ions in marine sulfate polysaccharide911 was determined by conductometric titration. 本文以一种海洋硫酸多糖“911”作为研究对象，通过电导滴定法测定其羧酸根的含量。
- The contents of methoxyl and carboxyl groups have good linear relationships between the contents... 木质素的甲氧基、羧基含量与总氮、有效氮含量均呈较好的线性关系。
- The content of carboxylate ions in marine sulfate polysaccharide 911 was determined by conductometric titration. 本文以一种海洋硫酸多糖“911”作为研究对象，通过电导滴定法测定其羧酸根的含量。
- The thieves got away with the contents of the safe. 那些窃贼偷走了保险箱内的东西。
- Determination of carboxylic group content on modified activated carbon surface by Catalytic kinetic analysis 改性活性炭表面羧基的催化动力学分析
