The researchers start off by drying their coffee grounds overnight and then pour in some common chemical solvents, such as hexane, ether and dichloromethane, to dissolve the oils.
研究人员使用的方法是将咖啡渣隔夜使其干燥,然后放入一些常见的化学溶剂中,例如正己烷、乙醚和二氯甲烷,来溶解咖啡渣中的油类成分。
The researchers from the University of Murcia measured the levels of two common gasoline related pollutants, benzene and hexane, in the area around the stations.
Murcia大学的研究人员测量了加油站附近空气中苯和己烷这两种与汽油有关的污染物的含量,并与普通汽车交通造成的污染数据进行了比较。
Obtained by chlorination of butyl rubber in hexane solution.
由丁基橡胶在己烷溶液中氯化制得。
Gulf residents are getting sick: blood tests confirm ethylbenzene, xylene, and high levels of hexane.
墨西哥湾居民患病:血液测试确认含有乙苯,二甲苯以及很高成分的乙烷。
Methods: Active carbon tube adsorption and solvent desorption were used for sampling hexane and analysis was performed by GC(FID).
方法:以活性碳管采集空气中正己烷,用二硫化碳解吸后气相色谱(FID)测定。
The article brief the origin of hexane and stress the method of industrial separation.
介绍了己烷的原料来源,重点介绍了其工业分离方法。
It is found that the major nitrogen sources in coker gas oils are associated with relatively small pentane insoluble species and an even smaller, highly polar, hexane insoluble species.
研究发现,焦化蜡油中主要的富氮组分是较小分子的戊烷不溶物,或者是更小分子、极性较强的己烷不溶物。
Therefore, it is possible to use the cheap solvents (mixture of methanol and water) instead of the expensive hexane and acetone when the Accelerated Solvent Extraction method is employed.
这表明采用加速溶剂提取技术,可用价格较低的甲醇取代昂贵的正己烷和丙酮。
Objective to study the mechanism of toxicity of hexane.
目的探讨正己烷毒性的作用机制。
The venting requirements provided in this standard are based on studies of hexane stored in steel tanks.
本标准中所提供的放空要求是基于对存储在钢制储罐中己烷的研究。
If necessary, add more hexane to complete the elution of ferrocene.
如果有需要的话,可以用更多的己烷把二茂铁完全洗脱下来。
The composition and anti-aging activity of hexane extracts from Black-bone Silky fowl were investigated.
分析乌骨鸡正己烷提取物组成成分,并研究其抗皮肤衰老活性。
Hydrogenated soy, corn, and canola oils - loaded with dangerous trans-fats and processed with toxic hexane solvents - are routinely added to packaged foods.
氢化的大豆,玉米,和油菜籽油-装有危险的反式脂肪和有毒正己烷溶剂处理-定期包装食品。
Its adsorption capacities of hexane and methanol are obviously low, whereas the capacity of water is relatively high.
它的正己烷与甲醇吸附量均较低,而水的吸附量相对较高。
The honey samples were dissolved in water and acetone and then extracted with hexane - chloromethane, cleaned by C18 SPE cartridge, determined by gas chromatographic electronic capture detector.
蜂蜜样品用水溶解后,经正己烷-二氯甲烷提取,提取液经c18固相萃取小柱净化,采用气相色谱仪电子捕获检测器定量测定。
Acetanilide and hexane diacid, potassium hydrogen phthalate could improve PVC crystallinity.
乙酰苯胺、己二酸和邻苯二甲酸氢钾可以使PV C结晶度增大。
This is accomplished by adding hexane to ethyl acetate.
这是借由加入己烷至乙酸乙酯中来完成。
The characteristics of crude oils from the IPA extraction process were measured and compared with that from hexane extraction process.
同时对异丙醇浸出的大豆粗脂肪理化指标进行了测定,并与正己烷浸出的粗脂肪做比较。
Lacquer thinner, which has a higher solvency than paint thinner and is therefore a harsher substance, often contains chemicals such as methanol and hexane.
油漆稀释剂,一种比涂料稀释剂溶解力更高的(稀释剂),(所以)是一种有害物质。它通常包含有类如甲醇和正乙烷的化学物质。
The second hexane wash may be decanted off and the wet solid screened.
第二次的乙烷洗液可以除掉,湿的固体进行过筛。
The petroleum hydrocarbon is called hexane .
己烷是一种石油碳氢化合物。
The petroleum hydrocarbon is called hexane.
己烷是一种石油碳氢化合物。
The Co nanorods showed narrow size distribution and no agglomeration in hexane.
在正己烷中基本无团聚,呈现单分散,形态均一,粒径分布窄。
In this paper, the fluorescence analysis system after extracting hexane was studied.
本文研究了己烷萃取后荧光分析系统。
IR and n-hexane cracking reaction were used to investigate the effect of different treatment conditions on acidity and catalytic activity.
用红外光谱和正己烷裂解反应考察了不同处理条件对其酸性和催化活性的影响。
Relatively, the acetone extract includes more components of lower boiling point, while it is opposite for n-hexane extract.
相对来说,丙酮提取物中的低沸点组分偏多,正己烷提取物中的高沸点组分偏多。
Molybdenum carbide was prepared with n-hexane as carbon source by temperature programming method.
采用程序升温法,以正己烷为碳化原料制备碳化钼,对噻吩。
Objective to explore the early monitoring indices of neural system lesion by N-hexane.
目的探讨正己烷对神经系统早期损伤的检测指标。
The process of changing an open-chain hydrocarbon structure to a closed ring, e. g. , hexane to benzene.
使开链烃结构变成闭环烃的过程,例如使己烷变成苯。
The process of changing an open-chain hydrocarbon structure to a closed ring, e. g. , hexane to benzene.
使开链烃结构变成闭环烃的过程,例如使己烷变成苯。
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