Ron has been right about the result of every General Election but one 罗恩对于历届大选结果都预测对了,只有一次除外。
Discussion and study on influential factors of extraction rate of RNA by ammonolysis 影响氨解法RNA提取率因素的探讨与研究
The conventional synthesis method of the amidines was acid amide, ammonolysis and orthoformic acid esterify. 脒类化合物的传统合成方法以酰胺法、腈的氨解法和原甲酸酯法为主。
This paper relates to the pretreatment of the mother liquor of ammonolysis andbromic recovery method in the new synthesis method of CLT acid. 本文介绍在新法合成clt酸中,氨解母液的预处理和溴的回收方法。
Screening for2-bromo-butyric acid as the starting material, after ammonolysis, esterification, ester amine solution, split, five-step cyclization reaction Levetiracetam. 筛选以2-溴代丁酸为起始原料,经氨解,酯化,酯胺解,拆分,环合五步反应制得左乙拉西坦。
Study on the Process and Apparent Dynamics for the Preparation of Diaminopropane by the Ammonolysis of Dichloropropane; Curing Kinetics of Bisphenol-A Epoxy Resin with Polyamide by Isothermal Differential Scanning Calorimetry 二氯丙烷氨化合成丙二胺工艺及动力学研究等温DSC法研究聚酰胺与环氧树脂的固化动力学
For the ammonolysis of(±)-α-methylbenzyl acetate, The effect of ammonia sources, the concentration of enzyme and substrates on the reaction were further explored. 进一步探讨了氨源、酶浓度、底物浓度等因素对该酶反应的影响。
Oxidative ammonolysis reaction of wheat soda lignin and wood kraft lignin was studied. 对麦草碱木质素和木材硫酸盐木质素的氧化氨解反应进行研究。
This article introduces manufacturing methods of taurine by means of sodium hydroxyethyl sulfonate ammonolysis acidification. Optimization quadratic regress standard alternant design experimentation was adopted in high-pressure ammonolysis reaction process experimentation. 研究了羟乙基磺酸钠氨解酸化法生产牛磺酸的工艺,对其中的高压氨解反应过程采用二次回归正交设计实验方法进行了优化。
This paper introduces in detail the factors influencing the yield of the amino acetic acid with the chloroacetic acid ammonolysis process, and connecting with the production procedures, makes deep analysis, and puts forward some corresponding methods for increasing the yield. 详细介绍了氯乙酸氨解法氨基乙酸生产过程中影响收率的因素,并结合生产过程进行了深入分析,有针对性地提出了提高收率的办法。
Different routes for synthesis of carbamate were reviewed, including oxidative carbonylation of amino, reductive carbonylation of nitryl, aniline-nitrobenzene method and ammonolysis of dimethyl carbonate. 介绍了几种氨基甲酸酯的合成方法,包括氨基的氧化羰化法、硝基的还原羰化法、苯胺、硝基苯联合法和碳酸二甲酯的胺解法。
Enzymatic ammonolysis of carboxylic ester with ammonia as the acyl acceptor is a novel reaction which was discovered in the mid of 1990s. 有机介质中的酶促酯氨解反应是20世纪90年代中期发现的以氨为酰基受体的新反应。
Compared with existing technologies, this technology increased the yield of ammonolysis reaction. 与现有工艺相比,提高了氨解反应收率。
The producing technology we adopted is predominantly the chloroacetic acid ammonolysis process. 本文介绍了氯乙酸氨解法生产甘氨酸的工艺及其优化。
Synthesis of 3, 4-dichloroaniline by bromination and ammonolysis of o-dichlorobenzene was reported, the byproduct, hydrobromic acid was effectively utilized in the process. 本文介绍了以邻二氯苯为原料,经溴化、氨解两步反应合成3,4-二氯苯胺,并对副产物HBr进行了有效的回收利用。
Study on Lipase-catalyzed Asymmetric Ammonolysis in Organic Solvent 有机介质中脂肪酶催化不对称氨解反应的研究
9-Amino-pelargonic acid was synthesized from sebacic acid through mono-esterification, ammonolysis and Hofmann's degradation. 9-氨基壬酸系从癸二酸经单酯化、氨化和Hofmann重排制得。
Effects of Ammonolysis on Synthesis of Ti ( C, N) Nano-powders by Sol-gel Processing 氨解对溶胶-凝胶法合成Ti(C,N)纳米粉末的影响
X-ray diffraction, SEM and nitrogen/ oxygen analyzer were adopted for the characterization of the powders obtained under different ammonolysis conditions. 对不同氨解温度、氨解时间和不同前驱体合成的CrN粉体用X射线衍射(XRD)、扫描电镜(SEM)和氮/氧分析仪等方法进行了表征。
An Investigation on the Micelle-Catalytic Hydrolysis and Ammonolysis of Carboxylic Acid Esters 羧酸酯水解与氨解反应的胶团催化研究
Abstract: The dioctadecyl amine is synthesized by ammonolysis of octadecyl alcohol with ammonia. 本文以十八醇和氨为原料,在催化剂存在下常压胺解,可一步合成双十八烷基仲胺。
Effects of Oxidative Ammonolysis on Nitrogen Forms of Technical Lignin 氧化氨解工艺对工业木素氮形态分布的影响
RNA extraction from beer yeast by ammonolysis 氨解法提取啤酒酵母中RNA的研究
Study on Oxidative Ammonolysis Reaction of Alkali Lignin 工业木质素氧化氨解反应研究
The oxidized products were reacted with hydroxylamine hydrochloride to generate purpurin 18 imide by ammonolysis and recondensation. 所得氧化产物进而和盐酸羟胺反应,经胺解开环和再缩合成环构成N羟基红紫素18酰亚胺衍生物;
Synthesis of High-Purity Si_3N_4 Powders by Ammonolysis of SiCl_4 SiCl4氨解法制备高纯度的Si3N4粉的研究
And to give 32 novel cycloalkyl substituted N-nitrourea derivatives via formylation and ammonolysis by one pot method. 然后采用一锅法经过氨基甲酰化和氨解反应合成了32种未见文件报道的环烷基取代的N-硝基脲类化合物。
Factors such as the degree of ammonolysis, the initial polymer solution concentration, pH, Ca2+ and so on had direct impacts on the micelle formation, the critical water content ( CWC) and particle size distribution. 胺解率、聚合物溶液初始浓度、pH值、Ca2+对胶束的形成、临界聚集水含量(CWC)、粒径分布等都有影响。
The key point in the experiment was the condition of ammonolysis reaction. The influence of catalyst, temperature, reaction time was discussed. 重点研究了氨解反应中催化剂和氨解试剂的选择、反应温度、反应时间等工艺参数对反应的影响。