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.
化学家们视其为助水溶剂，这种混合物使得清洁剂中的其它分子成分更易溶于水。
Known to chemists as a hydrotrope, this compound makes it easier for the other molecules in the detergent to dissolve in water. (Hydrotropes also can help to create high-foaming cleansers.)
研究了拜尔法生产氢氧化铝过程中，用溶剂浮选-气相色谱法测定结晶助剂有效成分硬脂酸钠的方法。
A solvent flotation-gas chromatography for the determination of sodium stearate in sodium aluminate solution in aluminium hydroxide production by the bayer process was studied.
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