acetone的例句大全

Under suitable conditions, the conversion on 1 , 2-propanediol and the selectivity on acetone aldehyde is 69 %.

试验结果表明,在适宜的条件下, 该催化剂对 12- 丙二醇的转化率达到98%, 对丙酮醛选择性达到了69%.

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Meanwhile, acetone was a polymerization inhibitor in preventing the self-polymerization ofp-methoxybenzyl chloride, and 11.

同时探索了甲氧基苄氯自聚的阻聚剂, 初选的阻聚剂丙酮可使甲氧 基苄 氯粗品的收率提高11.

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Inhibitory mechanism of acetone extract from Eichhornia crassipes root on Alexandrium tamarense

凤眼莲根系丙酮提取物抑制赤潮藻类生长的机制研究

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Scrub each optical surface with a gauze pad soaked in acetone. Rinse thoroughly with distilled water.

或者用含丙酮的网垫擦洗光学表面. 然后用蒸馏水漂洗.

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I used solvents such as water, acetone, and denatured alcohol to push the crayon dust around as if it were paint.

我用一些溶剂涂抹粉笔，让画面效果看起来像是用颜料处理过的。

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Methods The EtOH extract of radixes of Daphne genkwa was initially separated with silica gel chromatography eluted by petrol/ acetone gradient.

方法芫花根醇提物以硅胶柱层析，石油醚/丙酮梯度洗脱。

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Analyzing acetone from exhalation is a new method of diagnosing diabetes fast.

通过人体呼气中的丙酮分析,是实现糖尿病快速诊断的新方法.

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1 ∶ 1 acetone solution was used to extract dry ivy mosses, from which lixivium was extracted by ethyl acetate. They always connected water with their attitude. acetone;

用1∶1的丙酮水对贡菜干品浸提，经减压回收丙酮，以乙酸乙酯萃取，再减压回收乙酸乙酯，得到贡菜提取液。

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A small quantity of acetone in feed material is advantageous to the increase of the catalyst activity, selectivity of MIBK and DIBK, but excess acetone will make against the synthesis reaction process.

反应物相中少量丙酮的存在有利于催化剂活性、MIBK和DIBK选择性的提高，但过量丙酮的存在对合成反应不利。

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The separation of acetone, ethanol, benzene, chloroform, toluene was performed on a 10 % PEG-20 M Chromosorb-W-AW-DMCS column.

对样品中残留丙酮 、 乙醇 、 苯 、 氯仿 、 甲苯的分离选用10%PEG-20Mchromosorb -W-AW-DMCS 公谱柱.

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Objective To experimentally study the anticonvulsant activity of an acetone-extract form Stellera chamaejasme L . ( AESC ).

目的　研究瑞香狼毒丙酮提取物 ( AESC ) 抗惊厥作用.

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Outlined solvents like , butanone ethyl acetate, acetone, methylbenzene ethanol are quick drying solvents.

以上列举的溶剂中象醋酸乙酯、丁酮 、 丙酮 、 甲苯、乙醇都属快干溶剂.

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METHODS Mengoferin was dissolved in water and acetone, then dripped with sodium bicarbonate solution.

方法:将芒果苷置于水和丙酮的混合溶液中, 滴入碳酸氢钠水溶液,溶液澄清后滤过.

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Technical progress of domestic and foreign acetone-benzol dewaxing units were introduced in detail.

详细介绍了国内酮苯脱蜡装置技术进展情况.

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Irone was obtained through three steps reactions with citral and acetone base catalyst to give pseudoionone.

采用山苍子油提取得到的柠檬醛和丙酮等为主要原料合成鸢尾酮.

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Chlorophyll was extracted from leaves of table beet and fodder beet by 80 % acetone.

采用80%丙酮提取法提取食用红甜菜和饲用甜菜叶片中的叶绿素;用0.

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They are insoluble in water, ethanol, methanol, acetone, chloroform and benzene, but, DMF and DMSO.

它们溶于N, N- 二甲基甲酰胺 、 N, N-二甲基乙酰胺和二甲基亚矾等溶剂,但不溶于水 、 乙醇 、 甲醇 、 丙酮 、 氯仿和苯.

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METHODS 3-hydroxy estrogen reacted with dimethyl sulfate in acetone in the presence of potassium carbonate.

方法以含 3- 酚羟基的雌激素类化合物为原料,丙酮为溶剂,在碳酸钾存在下与硫酸二甲醋反应.

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The nano-was synthesized through the chemical oxidation method in an solution of acetone or diacetyl, separately.

在丙酮、丁二酮水溶液中采用化学氧化法合成 纳米 聚苯胺, 并研究有机溶剂的含量对纳米聚苯胺导电性能的影响.

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The absorb experiment by acetone-air gas and water can realize the requirement of engineering exercises.

采用(丙酮+空气)-水物系的吸收实验系统能更好地体现工程性训练的要求.

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