查询词典 butanol

Acceptable resolutions were achieved when it was applied for the separation of dipeptides including Leu-Tyr and Val-Tyr by using 1-butanol-acetic acid-water (4:1:5, V/V/V) solvent system. The proteins including cytochrome C and myoglobin, lysozyme and myoglobin, and fresh chicken egg-white proteins were well separated by 12.5% PEG1000-12.5% K2HPO4-75% water (pH 9.0) and 16% PEG 1000-12.5% K2HPO4-71.5% water (pH 8.0) system.

应用研究表明，采用正丁醇-醋酸-水(4：1：5， V/V/V)和PEG1000-磷酸钾盐-水(12.5：12.5：75， W/W/W)(pH 9.0)体系可以在较高的流动相流速和较高的固定相保留下分别实现对亮氨酸-酪氨酸和缬氨酸-酪氨酸二肽混合物以及细胞色素C与肌红蛋白、肌红蛋白与溶菌酶混合物及鸡蛋清样品中蛋白成分的成功分离。

The influence factors such as amount of catalyst,molar ratio of maleic anhydride to n-butanol,and reaction time on the yield of dibutyl maleate were discussed.

以La2(SO4)3/SiO2为催化剂，顺丁烯二酸酐和丁醇为原料，合成内增塑剂顺丁烯二酸二丁酯，探讨了催化剂用量，酐醇物质的量比以及反应时间等对收率的影响。

One of the main reasons is the influence of hydrogen bonds, such as glycollic and benezene and alkanones, and benezene volatile rate is 2 times the ethanol, butanol alkanones than n-butyl acetate low and volatile rate is also low, from here discernthat chemonucleolysis dosage form hydrogen bonds to limit business card printing and membership card making ink ink film volatile plays an important role to play.

主要原因之一是氢键的影响，如乙醇和苯的沸点接近，而苯的挥发速率为乙醇的2 倍，丁醇的沸点比醋酸正丁酯低，而挥发速率也低，从这里看出氢键对限制溶解剂型制卡和会员卡制作油墨的墨膜挥发起着重要的作用。

With headquarter in Shanghai, Kaikai Yuansheng Medicine is manufacturing and exporting the API裈rimebutine maleate and its intermediates with chemical name of Phenyl-2-Dimethyl Amino-2-Butanol as well as 150 kinds of medicinal products.

开开援生制药总部设于上海，主要生产和出口马来酸曲美布汀医药原料、中间体2-苯基-2-二甲氨基-丁醇及中西药品共150多个品种。

Result: Immersion test with JJ18 broth showed that the active components were extracellular moiety of the broth and that 10% concentration solution could kill nearly 90% snail immersed after 72 h,the salified broth has favourable thermostabily and photostability and showed that JJ18 has stable passage and its active components concentrate in the extract of n-butanol.

结果：JJ18菌株发酵液的活性成分集中在胞外液，当胞外液浓度10%时，72h杀螺率接近90%，且发酵外液成盐后有良好的耐热性，强光照下7 d内活性物质基本不改变，菌株传代稳定，杀螺活性成分集中在正丁醇萃取部位。

The experiment results indicate that higher phase splitting speed and extraction factor can be achieved when low-carbon alcohols such as n-butanol are used as organic solvents; by using five different N-carbobenzyloxy-L-amino acids as chiral ligands that are formated with Cu(superscript 2+) or Ni(superscript 2+), it is found that as a ligand, Z-Phe has a low extraction factor, while Z-Hyp, Z-Pro, Z-Glu, Z-Val have higher extraction factors, and among these, Z-Val has the highest distribution coefficient; pH value of extractant, when near to the PI of phenylalanine, helps to improve extraction resolution effect; temperature has no obvious effect on the resolution result.

结果表明：以低碳醇类正丁醇作有机稀释剂，所用5种N-苄氧羰基氨基酸（分别为Z-Phe、Z-Hyp、Z-Pro、Z-Glu、Z-Val）与Cu(上标 2+)或Ni(上标 2+)形成手性配位体后，以Z-Val作手性配体，萃取相pH值接近苯丙氨酸等电点时，萃取拆分效果最佳。

Some technologies,including olefines from methanol,oxalates and ethylene glycol from carbon monoxide,carbon dioxide-based polymers,chemicals from the syngas prepared by biomass gasification,acetone and butanol by fermentation,and chemicals from acetylene,ethanol,glycerol,furfural,hydroxymethyl furfural and starch,were reviewed.

包括甲醇制烯烃，一氧化碳制草酸酯和乙二醇，乙炔化学品，二氧化碳聚合物，生物质气化合成化工产品，发酵法生产丙酮、丁醇，乙醇衍生化工产品，甘油合成化工产品，糠醛和羟甲基糠醛合成化工产品，淀粉合成化工产品等重要的石油替代化学品生产技术被介绍。

One chamber near the epidermis was filled with OCAs, and the other one was filled with isotonic saline. The dynamic changes in transmittance and the skin thickness were monitored after the application of six saturated alcohols to in vitro skin samples. From the observed results at 60 minutes, the optical clearing effects of six OCAs, i.e., glycerol, polyethylene glycol 400 (PEG400), polyethylene glycol 200 (PEG200), 1, 3-propylene glycol, 1, 4-butanediol and 1-butanol, showed in the descending order.

针对离体皮肤，建立模拟在体环境的给药方法(皮肤表面给药、真皮面与等渗生理盐水作用)，考察6种饱和醇类试剂作用后皮肤厚度及透射光强的变化。60分钟的动态观测发现，各试剂均能产生不同程度的光透明作用，皮肤光透明效果由强到弱依次为：甘油、聚乙二醇400(PEG400)、聚乙二醇200(PEG200)、丙二醇、丁二醇、正丁醇。

N-Butyl acetate was synthesized from acetic acid and n-butanol using polyvinyl chloride-polythylene polyamine resin which adsorb s metal ions as the catalyst.

采用吸附了金属离子的聚氯乙烯—多乙烯多胺树脂为催化剂，乙酸和正丁醇为原料催化合成了乙酸正丁酯。

This year the company operating the various organic chemical raw materials, varieties are: methanol, ethanol, ethylene glycol, butanol, isobutanol, isopropanol, glacial acetic acid, vinyl acetate, B lipid, Ding acetic acid lipid, styrene, toluene, phthalic anhydride, xylene, acetone, butanone, cyclohexanone, DMF, sulphuric acid, methyl isobutyl ketone, glycol Dingmi, three toluene, 2 Xin fat, melamine.

本公司常年经营各种有机化工原料，品种有：甲醇、乙醇、乙二醇、正丁醇、异丁醇、异丙醇、冰醋酸、醋酸乙烯、醋酸乙脂、醋酸丁脂、苯乙烯、甲苯、苯酐、二甲苯、丙酮、丁酮、环己酮、DMF、硫酸、甲基异丁基酮、乙二醇丁醚、三甲苯、二辛脂、三聚氰胺。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。