查询词典 ethanol

The preparation includes: using the glutin to remove tannin, adding pH value regulator and antioxidant, and having a certain proportional ethanol-water mixture as menstruum.

制备时，使用明胶除去鞣质，加入pH值调节剂及抗氧剂，并使用一定比例的醇水混合物作为溶媒。

Methods:The most appropriate technology was screened based on the comparative study among the technology of ethanol circumfluence,ultrasonic extraction,water warm immersion and water decoction,with the concentration of menstruum, volume and extracting time as the evaluating factors,on the basis of orthogonal design.

对比乙醇回流、温浸、超声及水煎等提取工艺，以溶媒浓度、用量、提取时间为研究因素，经正交设计进行提取工艺条件的优选。结果：最佳提取工艺路线为10倍量75%乙醇回流提取1次，提取时间为1.5 h。

Objective:To study the extraction in the processes of Weitongliying Soft Capsule after extracted by Supercritical carbon dioxide fluid.Methods:The most appropriate technology was screened based on the comparative study among the technology of ethanol circumfluence,ultrasonic extraction,water warm immersion and water decoction,with the concentration of menstruum, volume and extracting time as the evaluating factors,on the basis of orthogonal design.

目的：研究胃痛立应软胶囊制备中二氧化碳超临界流体（SFECO2）萃取后药材的提取工艺方法：对比乙醇回流、温浸、超声及水煎等提取工艺，以溶媒浓度、用量、提取时间研究因素，经正交设计进行提取工艺条件的优选。

Both of the thermophiles were motile by means of lophotrichous flagella and had high growth rate on medium containing cellulose. Optimal growth occured at 60℃ for the two thermophiles and at PH 7. 5 for Y, PH 7. 37. 5 for W strain. Y strain produced yellow pigment in cellulose medium and had yellow-colored, round or watery colonies in cellulose agar. The colonies of W strain were white -colored and similar in form to that of Y strain. The mesophile, Clostridium sp. B, was motile with peritrichous flagella. The colonies grown on cellulose agar were white and round with slightly undulate margins. The optimal growth temperature and PH of B strain were 40℃ and 7. 0-7. 2, respectively. All of the three Clostridia fermented varieties of carbohydrates and in cellulose media produced the similar end-products: CO〓H〓, ethanol and acetic acid. The DNA compositions were 34 mol% for Y and B, 35 mol% for W strain.

嗜热菌y与w在含纤维素的培养基中生长迅速，其最适生长温度均为60℃；最适PHy为7.5，w为7.3-7.5.y菌在纤维素培养基中产生黄色，在纤维素琼脂中菌落为黄色并呈圆形或流动粥样。w菌落为白色，但形状与y菌类似，嗜温菌B在纤维素琼脂上菌落为白色，圆形，边缘呈微小波状，最适PH与温度分别为7.0-7.2和40℃，三支菌都可发酵多种碳水化合物，且在纤维素培养基中产生同样的产物：CO〓H〓，乙醇和乙酸，三者DNA组成分别是y为34mol%，w 35mol%，B 34mol%。

Nano-calcium carbonate （nano-CaCO3） particle was surface modified with methacrylic acid in a medium of ethanol.

在醇相中用具反应活性的甲基丙烯酸对纳米碳酸钙（CaCO3）进行表面处理，制成分散体系。

The chemical and physical peculiarity and application characteristic of LPG, Methyl Alcohol Petrol and Ethanol Petrol are analyzed.

本文首先介绍了国内外代用燃料的发展现状及未来趋势，并且着重分析了LPG和醇类燃料的物理化学特性以及它们的应用特点和存在的问题。

The integration of the methyl group of methylamine, based on the internal standard of the methylene group of ethanol, was measured and from which the amount of methylamine in the solution as well as the time that required can be derived.

以乙醇的亚甲基为内标，测量各种溶液情况下甲胺碳峰的积分值，可以判断该溶液甲胺所含的重量，以及达成某浓度所需通气时间。

Silicon phthalocyanine dihydroxide was prepared from silicon phthalocyanine dichloride through two methods. The first was alkali treating that meaned silicon phthalocyanine dihydroxide was treated in the ethanol solution containing sodium methylate .The second was acid treating meaned precipitating its solution in concentrated sulfuric acid into ice water. The product yield of the second method was 77.0％, which was higher than the method of alkali treating.

此外将合成的二氯酞菁硅采用两种方法转化为二羟基酞菁硅，第一种方法是碱处理法即将二氯酞菁硅在甲醇钠的乙醇溶液中回流得到，最高收率为53％第二种方法是酸处理法即采用二氯酞菁硅的硫酸溶液在冰水析出的方法转化为二羟基酞菁硅，其中酸溶析出法收率为77.0％。

The mutated saccharomyces cerevisiae starting transcription factor transformed into microzyme can be used for production in which xylose is utilized by leaven to produce ethanol.

本发明所提供的突变酿酒酵母起始转录因子转化入酵母菌可用于酵母利用木糖产乙醇的生产。

"We have recently completed commissioning the UK's first cellulosic ethanol demonstration facility — one of just a handful worldwide," said Milner.

"我们最近完成委托英国的第一个纤维素乙醇的示范设施之一-只有一小撮世界各地，"米尔纳说。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。