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AIM To investigate the therapeutic effect of ethyl acetate extract from Pongamia pinnata roots on ethanol-induced gastric lesions.

目的研究水黄皮根乙酸乙酯萃取物对乙醇致胃黏膜损伤的治疗作用。

Make solutions of 4:1, 1:1, and 1:4 ratios of hexane:ethyl acetate.

配制一个4:1,1:1和1:4的己烷:乙酸乙酯的溶液。

A mixture of solvent is alcohol, ethyl innovativeink that do not include.

溶剂是醇的混分物,油不朱洋不含乙酯

Then the solution is heated to the temperature at which the caffeine and either methylene chloride or ethyl acetate compounds evaporate.

那么,解决办法是加热温度的咖啡因,或是二氯甲烷或乙酸乙酯化合物蒸发。

The company is the biggest professional manufacturer about succinic acid series in China,the main product are succinic acid,succinic anhydride,ethyl succinyl chloride,the products are fine and advanced technicsis used manufacturing.

简介: 公司是国内最大的丁二酸系列产品的专业生产企业,重点产品:丁二酸、丁二酸酐、丁二酸单乙酯酰氯,产品质量上乘,多种工艺提供不同厂家的需要。

European or Traditional Process - Direct Method: The direct process involves softening the beans by steam first, then washing them for about 10 hours with either a methylene chloride or ethyl acetate solution to absorb the caffeine from the bean.

欧洲或传统工艺-直接方法:直接过程涉及软化咖啡豆的蒸汽,然后洗涤他们大约10小时带有二氯甲烷或乙酸乙酯溶液吸收咖啡因的咖啡豆。

And the operational condition was as follows: 100-200 mesh silica gel to be the stationary phase, solvent system of methlene chloride: ethyl acetate: ethanol = 80:35:5 to be the eluent, the flow rate of the eluent to be 2.0 mL/min, the feeding concentration of pristinamycins to be 2.26 g/L, the total loading amount of the silica gel to be 0.81 mg/g and the temperature to be 25℃.

优化后的柱层析操作条件为:选用100~200目的硅胶,二氯甲烷:乙酸乙酯:乙醇=80:35:5为洗脱剂,流速为2.0 mL/min,普那霉素的进样浓度为2.26g/L,硅胶的总负载量约为0.81 mg/g,温度为25℃。

A method for determining contents of seven kinds of residual organic solvents such as methanol, ethanol, methylene chloride, ethyl aetate, toluene, tetrahydrofuran and acetic acid in a new pharmaceutical-developing (UP0044) was established by capillary gas chromatography.

建立了测定新药UP0044中甲醇、乙醇、二氯甲烷、乙酸乙酯、甲苯、四氢呋喃、乙酸7种有机溶剂含量的方法,以确定它们在药物中的残留量和比例。

At the same concentration, extracts show the highest scavenging rate on the four different free radicals extracted by ethyl ether, acetone, ethyl ether and ethyl acetate, respectively.

在相同的浓度下,对自由基的清除作用最大的分别为乙醚、丙酮、乙醚和乙酸乙酯提取物。

The effects of different entrainers(methanol,acetone,ethyl acetate,petroleum ether and ethanol of different concentrations) on the diosgenin extraction rate were studied.

探讨了乙醇、甲醇、丙酮、乙酸乙酯、石油醚作为夹带剂以及在无夹带剂的条件下,对薯蓣皂素收率的影响。

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