油脂部分依次以石油醚、苯、氯仿、乙酸乙酯、丙酮、乙醇为淋洗剂进行洗脱,利用红外光谱、核磁共振光谱法对所分离组分进行了结构鉴定。
The compositions of grease were eluted with petroleum ether, benzene, chloroform, ethyl acetate, acetone, ethanol and characterized by means of IR and NMR spectroscopy.
理化性质:白色结晶性粉末、溶于水、稀醇、液氨和二甲基甲酰胺,而不溶于乙醇、醚和丙酮。
Characters: White crystalline powder, soluble in water, dilute alcohol, liquid ammonia and dimethylformamide, and not soluble in ethanol, ether and acetone.
溶解性:溶于水,盐酸微溶于乙醇,硫酸不溶于丙酮。
Solubility: soluble in water, slightly soluble in alcohol, Practically insoluble in acetone.
性状:红色结晶;在湿空气中易潮湿,易溶于水,也溶于乙醇、醚和丙酮;脱水后呈浅兰色粉末。
Appearance: Red crystal. Easily deliquescent in wet air, soluble in water, alcohol and acetone, it becomes light-blue powder after losing the crystal water.
在水中易溶,在乙醇、丙酮或冰醋酸中不溶。
Soluble in water and insoluble in ethanol, acetone or glacial acetic acid.
结果表明,茅苍术多糖是一种白色粉末状固体,无味,溶于水,不溶于乙醇、丙酮、氯仿等有机溶剂。
The results were that Atractylodes polysaccharide was brownish red colored powder, tasteless, water-soluble and undissolved alcohol, acetone, chloroform, et al.
这些箔片和他的连接线到电极,必须能够经受油墨中的溶剂,如,丙酮,乙醇,甲基酮和水。
The foil and its connections to the charge electrodes must withstand inks based on a range of solvents such as acetone, ethanol, methyl-ethyl-ketone and water.
主营甲醇,乙醇,乙二醇,丙酮,二氯乙烷,二氯甲烷,二乙二醇。
Main methanol, ethanol, ethylene glycol, acetone, ethylene dichloride, methylene chloride, diethylene glycol.
不同有机溶剂(乙醚、丙酮、乙醇)处理苦瓜叶片,用超敏感银染sds - PAGE电泳进行蛋白质分析。
The leaves of Balsam pear were disposed with different organic solutions, which were ether, acetone and ethanol, after that, analyse of proteins by supersensitive silver stain SDS-PAGE method.
随着乙醇或丙酮浓度的增加,电弧温度下降。
And the arc temperature drops down with the consistency of aquesous alcohol or aqueous acetone increases.
随着乙醇或丙酮浓度的增加,电弧力增大。
The arc pressureis increased with increasing of the consistency of aqueous alcohol or aqueous acetone.
性质白色粉末,无味无毒,易溶于甲苯、丙酮、乙醇,不溶于水。
Properties White powders, inodorous, atoxic. Soluble in toluene, acetone and alcohol, insoluble in water.
方法:用丙酮、乙醇提取蛋黄中的卵磷脂。
Method: to extract lecithin from egg yolk with acetone and ethanol.
性状:白色三角晶体。易潮解,稍有醋酸气味。溶于水和乙醇,不溶于丙酮。
Prop. :White triangle crystal, easy deliquescence, with taste of acetic acid, soluble in water and ethanol, insoluble in acetone.
先固定细菌并使之在紫色染料中着色,然后再用有机溶剂如丙酮或乙醇洗脱细菌上的染料。
The bacteria are first killed and stained with the violet dye, then treated with an organic solvent such as acetone or ethanol.
以大豆毛油为原料,通过水化脱胶、丙酮去油和乙醇萃取等过程,提取了纯度较高的卵磷脂。
Using soybean oil as raw material, pure soybean lecithin was obtained by degumming with water, defatting with acetone and extracting with ethanol.
沥青属于憎水性材料,它不透水,也几乎不溶于水、丙酮、乙醚、稀乙醇,溶于二硫化碳、四氯化碳、氢氧化钠。
Asphalt is hydrophobic material, it impermeable, almost insoluble in water, dilute ethanol, acetone, ether, soluble in carbon disulfide, carbon tetrachloride, sodium hydroxide.
方法在微波功率和萃取时间一定的条件下,分别选用有机溶剂甲醇、乙醇、甲苯、丙酮及环己烷为提取剂,进行间歇性提取。
METHOD Under the same conditions of microwave power and extraction time, methanol, alcohol, toluene, acetone and hexamethylene were used as the extractant to carry out intermittent extraction.
目的:建立一种气相色谱法同时测定原料药头孢唑林钠中有机溶剂丙酮,二氯甲烷、乙醇残留量的方法。
Objective: Using the headspace Gas - chromatography methods to measure the assay of residual solvent (acetone, ethylene chloride and ethanol) in Cefazolin sodium.
本发明公开了一种木薯粉培养基以及发酵生产丙酮、丁醇、乙醇的方法。
The invention discloses a cassava meal medium and a method for producing acetone, butanol and ethanol by fermentation.
特别留意给了歧视乙醇和丙酮(CH3COCH3之间),这是一个具有应战性的由于相似问题的化学性质为2.1。
Special attention was given to discriminating between ethanol and acetone (CH3COCH3), which is a challenging issue on account of their similar chemical nature 2.1.
通过对致死中量测定所得结果分析,乙醇提取液的毒力大于丙酮提取液的毒力,且两者毒力均较强。
Determination of the toxicity of ethanol extract and acetone extract to mice in Gleditsia sinensis LamThe toxicity of both extracts was assayed by gastric lavage.
可溶于甲醇、乙醇、丙酮等有机溶剂,不溶于水。
It can be dissolved in Methanol, ethanol and acetone, but not in water.
溶解性:本品在丙酮或氯仿中易溶,在乙醇中略溶,在水中微溶。
Solubility: The product is soluble in acetone or chloroform, slightly soluble in ethanol, slightly soluble in water.
将谷物用水打湿,用氯仿-乙醇(8∶2)提取,将提取液浓缩至干,残留物以丙酮溶解。
The cereals were soaked in water and then extracted with chloroformethanol(8:2). The extract was concentrated up to dryness, the residue was dissolved in acetone.
性质白色粉末,无味无毒,易溶于苯、丙酮、乙醇,不溶于水。
Properties White powders, inodorous atoxic, it's soluble in benzene, acetone and alcohol, insoluble water.
方法取ab- 8树脂分别经乙醇、丙酮处理前后的浸出液及经树脂吸附后的栀子洗脱液,以气相色谱法检测其中苯、甲苯、二甲苯、苯乙烯残留物的含量。
METHOD AB 8 resin was treated with alcohol and propanone and the extract was detected for the content of the residues of benzene, methylbenzene, xylene and styrene.
以硅胶为固定相,正己烷丙酮、正己烷丙酮乙醇分别作为胡萝卜素及叶黄素的洗脱剂。
Silica gel is taken as solid phase, Hexane acetone as the eluting reagent of carotene and Hexane acetone ethanol as the eluting reagent of lutein.
采用80%的酸性乙醇提取、硅胶柱层析分离、乙醚分级沉淀、丙酮重结晶的工艺方法,从苦参中分离得到氧化槐果碱单体。
Besed on the extract with 80% acidities alcohol, separation by silica gel, precipitation by ether, oxysophocarpine was obtained from Sophora flavescens.
采用80%的酸性乙醇提取、硅胶柱层析分离、乙醚分级沉淀、丙酮重结晶的工艺方法,从苦参中分离得到氧化槐果碱单体。
Besed on the extract with 80% acidities alcohol, separation by silica gel, precipitation by ether, oxysophocarpine was obtained from Sophora flavescens.
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