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 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.
介绍了氯代环己烷的合成工艺及其应用。
The synthetic process and application of cyclohexyl chloride are introduced.
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。
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.
建立了毛细管气相色谱法测定甲磺酸齐拉西酮中残留溶剂乙醇、异丙醇、二氯甲烷、正己烷、四氢呋喃、D MF、丙二酸二甲酯的残留量。
A capillary GC method with FID detector for the determination of residual organic solvents ethanol, isopropanol, dichloromethane, n-hexane, tetrahydrofuran, DMF and dimethyl malonate was established.
在分析气凝胶干燥开裂的原因后，以三甲基氯硅烷（ TMCS）为表面修饰剂， 正己烷为干燥介质的表面改性工艺，一定程度控制了气凝胶的干燥收缩和开裂。
Silica aerogel crazing was analyzed and some improvements were made using TMCS surface modification technique together with the drying media of normal-hexane to control the crazing.
有机氯类用乙酸乙酯—环己烷和凝胶净化柱提取净化，石英毛细管气相色谱(配ecd检测器)检测。
Organic chlorine using ethyl acetate - cyclohexane and gel purification column extraction purification, quartz capillary gas chromatography (ECD allocation) detection.
溶剂采用环己烷、1,2 -二氯乙烷、吡啶中一种或多种混合使用。
The solvent is used by adopting one of or mixture of more than one of cyclohexane, 1, 2-dichloroethane and pyridine.
以二氧杂环己烷为溶剂，通过聚乙二醇2 70与对甲基苯磺酰氯反应合成了1 8冠6，产率64 .4 %。
Also, in dioxane solution, 18Crown6 was prepared in 64.4% yields by reaction of polyethylene glycol 270 and ptoluenesulfonyl chloride.
以二氧杂环己烷为溶剂，通过聚乙二醇2 70与对甲基苯磺酰氯反应合成了1 8冠6，产率64 .4 %。
Also, in dioxane solution, 18Crown6 was prepared in 64.4% yields by reaction of polyethylene glycol 270 and ptoluenesulfonyl chloride.
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