• 油脂部分依次石油氯仿乙酸乙酯、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.

    youdao

  • 理化性质白色结晶性粉末溶于二甲基甲酰胺溶于乙醇丙酮

    Characters: White crystalline powder, soluble in water, dilute alcohol, liquid ammonia and dimethylformamide, and not soluble in ethanol, ether and acetone.

    youdao

  • 溶解性溶于,盐酸溶于乙醇,硫酸不溶于丙酮

    Solubility: soluble in water, slightly soluble in alcohol, Practically insoluble in acetone.

    youdao

  • 性状红色结晶湿空气中易潮湿,易溶于溶于乙醇、醚丙酮;脱水呈浅兰色粉末

    Appearance: Red crystal. Easily deliquescent in wet air, soluble in water, alcohol and acetone, it becomes light-blue powder after losing the crystal water.

    youdao

  • 水中,在乙醇丙酮冰醋酸中不

    Soluble in water and insoluble in ethanol, acetone or glacial acetic acid.

    youdao

  • 结果表明,茅苍术多糖一种白色粉末状固体,无味溶于水,不溶于乙醇丙酮氯仿有机溶剂。

    The results were that Atractylodes polysaccharide was brownish red colored powder, tasteless, water-soluble and undissolved alcohol, acetone, chloroform, et al.

    youdao

  • 这些箔片他的连接线电极必须能够经受油墨中的溶剂丙酮乙醇甲基酮和

    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.

    youdao

  • 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.

    youdao

  • 不同有机溶剂(乙醚丙酮乙醇)处理苦瓜叶片,用超敏感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.

    youdao

  • 随着乙醇丙酮浓度增加电弧温度下降

    And the arc temperature drops down with the consistency of aquesous alcohol or aqueous acetone increases.

    youdao

  • 随着乙醇丙酮浓度增加电弧力增大。

    The arc pressureis increased with increasing of the consistency of aqueous alcohol or aqueous acetone.

    youdao

  • 性质白色粉末无味无毒,易溶于甲苯丙酮乙醇,不溶于

    Properties White powders, inodorous, atoxic. Soluble in toluene, acetone and alcohol, insoluble in water.

    youdao

  • 方法丙酮乙醇提取蛋黄中的卵磷脂

    Method: to extract lecithin from egg yolk with acetone and ethanol.

    youdao

  • 性状白色三角晶体潮解,稍有醋酸气味。溶于乙醇,不溶于丙酮

    Prop. :White triangle crystal, easy deliquescence, with taste of acetic acid, soluble in water and ethanol, insoluble in acetone.

    youdao

  • 固定细菌使之在紫色染料着色然后再有机溶剂丙酮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.

    youdao

  • 大豆毛原料通过水化脱胶丙酮去油乙醇萃取等过程,提取了纯度较高卵磷脂

    Using soybean oil as raw material, pure soybean lecithin was obtained by degumming with water, defatting with acetone and extracting with ethanol.

    youdao

  • 沥青属于憎水性材料不透水也几乎溶于丙酮乙醚乙醇溶于二硫化四氯化碳氢氧化钠

    Asphalt is hydrophobic material, it impermeable, almost insoluble in water, dilute ethanol, acetone, ether, soluble in carbon disulfide, carbon tetrachloride, sodium hydroxide.

    youdao

  • 方法微波功率萃取时间一定条件分别选用有机溶剂甲醇乙醇甲苯丙酮环己烷为提取剂,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.

    youdao

  • 目的建立一种色谱法同时测定原料药头孢唑林有机溶剂丙酮,二氯甲烷乙醇残留量方法。

    Objective: Using the headspace Gas - chromatography methods to measure the assay of residual solvent (acetone, ethylene chloride and ethanol) in Cefazolin sodium.

    youdao

  • 发明公开了一种木薯培养基以及发酵生产丙酮丁醇乙醇方法

    The invention discloses a cassava meal medium and a method for producing acetone, butanol and ethanol by fermentation.

    youdao

  • 特别留意歧视乙醇丙酮(CH3COCH3之间),一个具有应战性的由于相似问题化学性质为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.

    youdao

  • 通过致死中量测定所得结果分析,乙醇提取力大于丙酮提取液的力,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.

    youdao

  • 溶于甲醇乙醇丙酮等有机溶剂,溶于

    It can be dissolved in Methanol, ethanol and acetone, but not in water.

    youdao

  • 溶解性丙酮氯仿中易,在乙醇溶,在水中微溶。

    Solubility: The product is soluble in acetone or chloroform, slightly soluble in ethanol, slightly soluble in water.

    youdao

  • 谷物用水湿用氯仿-乙醇(8∶2)提取,将提取液浓缩干,残留物丙酮溶解

    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.

    youdao

  • 性质白色粉末无味无毒溶于丙酮乙醇,不溶于

    Properties White powders, inodorous atoxic, it's soluble in benzene, acetone and alcohol, insoluble water.

    youdao

  • 方法取ab- 8树脂分别经乙醇丙酮处理前后出液经树脂吸附后栀子洗脱液,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.

    youdao

  • 硅胶固定,正己烷丙酮、正己烷丙酮乙醇分别作为胡萝卜及叶黄素的洗脱剂。

    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.

    youdao

  • 采用80%酸性乙醇提取硅胶柱层析分离乙醚分级沉淀丙酮结晶的工艺方法,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.

    youdao

  • 采用80%酸性乙醇提取硅胶柱层析分离乙醚分级沉淀丙酮结晶的工艺方法,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.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定