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- In this paper,the reaction rule of diketen reacting with different alcohols under acid base catalysis was investigated. 研究了二聚乙烯酮与不同结构的醇在酸、碱催化下的反应规律,并用烷基电子效应的新观点解释了这个规律。
- The chief type of acid base unbalance is respiratory acidosis. 酸碱失衡类型中 ,呼吸性酸中毒占首位 ;
- Potassium has an important role in the regulation of acid base balance. 钾在人体的酸碱平衡中起到了重要的作用。
- Chitosan react with vanillin aldehyde by Schiff's base reaction in water, A polymer product-VCG can be prepared. 在水溶液中,壳聚糖与香草醛发生希夫碱反应,生成改性壳聚糖VCG。
- Chitosan react with salicyclaldehyde by schiff's base reaction in water,a polymer product S-CTS can be prepared. 利用水杨醛对壳聚糖进行改性,合成壳聚糖席夫碱类衍生物(S-CTS),将其滴涂在玻碳电极表面成膜。
- Then two mannich bases had been prepared by mannich bases reaction. 然后经曼尼希碱反应,生成两种曼尼希碱。
- The acid base properties of fluorosilicone rubber(FSR) were studied by inverse gas chromatography(IGC) in detail. 采用反相气相色谱法对氟硅橡胶表面的酸碱性质进行表征。
- Conseqently, the IGC is a simply &quick way of measuring the acid base property of polymers. 采用反相气相色谱法对氟硅橡胶表面的酸碱性质进行表征。
- The common glass bottles pose a risk of eluting sodium and the other elements contained in glass material under acid base condition. 一般常见之玻璃瓶在酸或硷性的情形下会有钠或其他元素溶离出来之缺点。
- Results 83 cases (96.51%) had acid base disturbance,in which the metabolic acidosis with respiratory acidosis was most common (61.63%). 结果 83例 ( 96 5 1%25 )存在酸碱紊乱 ,其中以代谢性酸中毒合并呼吸性酸中毒为最多见 ( 6 1 6 3%25 )。
- Method: The content of SD was measured by acid base titrations and trimethoprim (TMP) was determined by ultraviolet spectrophotometer. 方法:用酸碱滴定法测定磺胺嘧啶的含量,用紫外分光光度法测定甲氧苄啶的含量。
- To investigate the effect of interval hypoxic training(IHT) on aerobic capacity and Acid base balance metabalism by testing of blood gas analysis. 目的是通过实验对大鼠血气分析指标进行测试,进一步研究间歇性低氧训练对有氧代谢能力和酸碱平衡代谢作用的机理。
- Eight kinds of probe molecules have been selected to indicate acid base property of hydroxy terminated fluorosilicone oil by inverse gas chromatography(IGC). 采用 I G C法,选择8 种已知酸碱性的探针分子 ,表征羟基氟硅油的酸?碱性质。
- The variation of the desorption activation energy of dichloromethane on activated carbons was discussed with the help of the hard soft acid base(HSAB) princi. 主要研究了金属离子改性活性炭对二氯甲烷脱附活化能的影响。
- Objective:To compare the two methods of content determination for total alkaloids in Tonkin Sophora root.Method: Acid base titration and colorimetric method of acid dye were used. 目的:比较山豆根总碱两种含量测定方法,为山豆根提取工艺优选提供参考。
- An enzymatic method was applied to determine L-lactic acid based on the reaction of L-lactic acid and nicotinamide adenine dinucleotide oxidized form(NAD) catalyzed by L-lactate dehydrogenase(L-LDH). 利用乳酸在氧化型烟酰胺腺嘌呤二核苷酸(NAD)存在的条件下,由乳酸脱氢酶(L-LDH)催化生成丙酮酸和还原型烟酰胺腺嘌呤二核苷酸(NADH)。
- This article summarized the experimental technology and operation outline of the paper electrophoresis for amino acid based on abundant experiments. 摘要在大量实验的基础上总结出氨基酸纸上电泳实验技术和操作要点。
- A new solid acid based on heteropolyacid has been proved to be a useful catalyst for the synthesis of dibutyl maleate. 新催化剂在顺丁烯二酸二丁酯的合成反应中显示很好的活性和温和的反应条件。
- The viscosity behavior of a self-diverting hydrochloric acid based on an unnamed gemini VES is studied experimentally. 实验研究了未指名孪二连型粘弹性表面活性剂(VES)自转向盐酸液的变粘特性。
- Kocour Centrifuges are used primarily with Test Set KSTS to measure sulfates in Chromic Acid based Plating baths. 主营业务:测厚仪,水质测试包,金相耗材和设备,可焊性测试仪