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- carboxylic acid content 羧酸含量
- Carboxylic acid esters are important chemical raw materials. 羧酸酯是重要的化工原料。
- The influences of reaction temperature,content of catalyst,volume of hydrogen peroxide and reaction time on the yield of phenyl carboxylic acid were investigated. 以过氧化氢为氧化剂,十六烷基三甲基钨磷杂多酸铵为催化剂,催化氧化苯甲醛制苯甲酸。
- 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;
- Gastric secretion is reduced in volume and total acid content. 胃分泌的容量和总酸度降低。
- Sulfuric acid is main catalyst for the synthesis of carboxylic acid esters. 羧酸酯的合成主要用硫酸作催化剂,但这种催化剂有许多缺点。
- The exquisite taste is controlled by the acid content. 细腻的余味由酸度支撑。
- The glucuronic,acid content of the purified polysaccharide is 74%. 糖醛酸含量是74%25.
- One exception is the decarboxylation of aromatic carboxylic acids. 芳香羧酸进行脱羧反应是一个例外。
- To remove the acid from or reduce the acid content of. 使去酸,使脱酸把酸移走或降低酸的含量。
- Determination of ferufic acid content in shengfa capsule by HPLC. 高效液相色谱法测定生发胶囊中阿魏酸的含量
- "Natto" and the type of amino acid content is far better than milk. “纳豆”的氨基酸的种类和含量都远远超过了牛奶。
- The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene. 这条路线是先用羧酸使噻吩已酰化制得酸基噻吩。
- Carboxylic acid was peroxidized in organic solvents catalyzed by lipase and glycidol was synthesized from allyl alcohol catalyzed by acid peroxide. 摘要利用脂肪酶在有机介质中催化制备过氧酸,丙烯醇在过氧酸的作用下发生环氧化反应生成环氧丙醇。
- Nitric acid oxidation was found to reduce the surface hydroxyl (OH) groups in increasing the carboxylic acid (COOH) groups. 硝酸氧化减少了碳纤维表面的羟基含量,同时增加了碳纤维表面的羧基含量。
- In the reaction, some aniline is completely oxidized to CO2 or partially oxidized to carboxylic acid. 在反应中有一部分苯胺被完全氧化或部分氧化成CO2或羧酸,
- EFFECTS OF CADMIUM AND IRON ON AMINO ACID CONTENT IN TOBACCO LEAVES? 镉、铁及其复合污染对烟草叶片氨基酸含量的影响?
- PVAC latex is prepared by the polymerization of the new type of ethylene carboxylic acid . 采用乳液聚合制备了新的丙烯酸改性的聚乙酸乙烯酯(PVAC)乳液。
- Effect of Water Stress on Free Amino Acid Content in Rosemarinus officinalis L. 水分胁迫对迷迭香中游离氨基酸的影响。
- Preparation methods and degradation behavior for poly(carboxylic acid silyl ester)s were reviewed. 综述了聚羧酸硅基酯的合成方法和降解性质。