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.)
回答：若在检查某种有机溶剂时发现了未知峰（非目标峰），应基于良好的科学技术和理念鉴别该峰，并与毒理学家协作确定样品中该未知成分的可接受限度水平。
If you come up with an unexpected peak while looking for a specific solvent, use good science to identify the peak and work with a toxicologist for the acceptable level in that material.
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.
以两种药材为研究实例，对加速溶剂萃取法（ASE）在中药材有效成分提取研究中的应用进行了简要介绍。
The application of accelerated solvent extraction(ASE) technique for the Analysis of active components in traditional Chinese medicinal herbs was introduced by using two kinds of herbs as examples.
本论文采用有机溶剂浸提法提取小刺猴头菌子实体中化学成分。
Solvent extracting method was employed to thoroughly extract chemical compositions from the fruiting body of H. caput-medusae.
通过使用不同溶剂，研究了紫丹参中脂溶性成分的提取方法，并通过紫外光谱对其进行了表征。
The method of extracting hydrophobic components from purple salvia miltiorrhizae through using different solvents was carried out.
目的了解导致急性中毒事故的PS Z1堵漏剂溶剂有害化学成分。
Objective to find the harmful chemical components in the solvent of PSZ? 1 caulking compound which has led to an acute toxic accident.
方法：采用系统溶剂法提取，硅胶干柱层析法进行化学成分分离。
Method: Systematic solvent method is used to extract and silica gel dry column sheet gradation was used to separate the chemical composition.
银杏叶提取物中的主要杂质成分有银杏酚酸、大孔树脂残留、溶剂残留。
The main impurity components of Ginkgo Biloba leaves extracts were ginkgo acid, macro porous resin residua and solvent residua.
以山核桃外蒲壳为原料，采用不同溶剂提取液和单一成分对芝麻油、菜籽油的抗氧化活性进行了研究。
These extracts and their several components were used to study the anti-oxidization activity for sesame oil and rapeseed oil.
彩色光阻剂的主要成分包括：碱可溶性树脂、光固化树脂、颜料、光引发剂、有机溶剂以及添加剂。
The photo resist consists of binder polymer which makes the photopolymer alkaline soluble, multi-functional monomers, pigments, photo initiators and solvents.
结论：毒性成分主要存在于极性大的溶剂中，即残留的水溶性部分及正丁醇部分。
Conclusion:Toxic components mainly exist in water-soluble part and n-butanol extract of Herba Siegesbeckiae.
结论采用微波萃取技术提取冬凌草甲素，具有提取快速、操作简便、节省溶剂和有效成分提取率高等优点。
Conclusion microwave technology for oridonin extraction has advantages of rapid extraction, simple operation, saving solvent and higher extraction yield, etc.
优选地，所述抗原性降低成分是用水或有机溶剂从木犀榄属或女真属植物中提取的提取物。
Preferably, the antigenicity-reducing component is an extract of an Olea or a Ligustrum plant extracted with water or an organic solvent.
任选地，该组合物可以含有其它成分，例如有机溶剂、氧化剂、表面活性剂、防腐剂和金属络合剂。
Optionally, the composition may contain other components such as organic solvents, oxidizing agent, surfactants, corrosion inhibitors and metal complexing agents.
通过选择适宜溶剂，对一步酶法提取阶段所得渣质进行二步溶剂提取，达到充分提取有效成分的目的。
The residue from enzyme-based step can be further extracted in the second solvent-based step by selecting proper solvent in order to extract effective component sufficiently.
本文通过对油墨成分中溶剂、着色剂、粘合剂、电导调节剂等选材，确立了该油墨的组成，并分析了其主要作用机。
By choosing the solvent, colorant, adhesive, conductive regulator, we have established the composition of the ink and analyzed its main mechanism.
方法：用纯净水提取，溶剂萃取，大孔吸附树脂和硅胶柱色谱分离等方法分离并纯化亚麻根的微量成分，通过波谱分析鉴定化合物的结构。
Method: Isolation and purification of the trace constituents were carried out mainly by solvents extraction and macroporous adsorbing resin and silica gel column chromatography.
用正交试验设计研究了溶剂萃取法提取沙葱有效成分的工艺流程。
To study technics flow of extracting effective ingredients of Allium Mongolicum Regel by solvent extraction methods by orthogonal experiments design.
研究了样品萃取量、超声波萃取时间、以及不同萃取溶剂对微量挥发性成分萃取效果的影响。
The effects of sample concentration, ultrasonic extraction time, and different extracting solvent on the extraction of volatile microconstituents were also investigated.
采用不同溶剂从紫苏叶及紫苏籽皮中提取抗氧化成分，比较它们在紫苏油中的抗氧化活性。
The different antioxidant components were extracted from the Perilla leaves or seed peel using different solvent, and their antioxidant activity in Perilla seed oil was measured.
结果所研制的中药浸膏压敏胶贴片外观均一，黏附性良好，残留有机溶剂含量低，测试的药物有效成分的体外释放速率高于橡皮膏。
RESULTS This kind of patch has good surface quality, proper adhesive ability, low-level organic solvents residual volume and higher release speed.
文章介绍了低沸点溶剂技术的工艺参数，生产流程和装置，并对几种含有不同脂质成分的天然物料进行萃取研究。
The paper covers the technical parameter, production flow and the device about low boiling point solvent extraction technology.
试验结果发现，用有机溶剂提取的花椒精油，主要化学成分基本相同，且包含了用水作溶剂提取的花椒精油中的主要化学成分。
The result shows that the main compounds which were extracted by different organic solvent are same on the whole. And these compounds include the main compounds extracted by water.
NHD是一种新型高效脱硫脱碳溶剂，主要成分是聚乙二醇二甲醚。
The NHD is a new-style and high-effective solvent for desulfuration and decarbonization.
方法：采用溶剂分离法结合柱色谱法进行成分分离。
METHODS:To isolate the flavonoides and sitosterol derivants, the solvent extraction together with the column, chromatography and TLC methods were used.
凡是苯乙烯成品搁置酒精和火油解溶剂类弱溶剂也会爆发龟裂，一些承印物质料由于本身成分也会导致龟裂的本体爆发。
General styryl products use of alcohol and petroleum solvent kind of weak solvent-cracking occurs, some substrate materials because of their factors will also cause cracking phenomenon.
方法：采用溶剂浸渍方法提取冬凌草中的挥发性成分，用GC -MS方法对冬凌草挥发油的化学成分进行分析。
Methods: Volatile oil was separated by solvent extraction and analysed by gas chromatography coupled with electron impact ionization-mass spectrometry (GC-MS).
方法：采用溶剂浸渍方法提取冬凌草中的挥发性成分，用GC -MS方法对冬凌草挥发油的化学成分进行分析。
Methods: Volatile oil was separated by solvent extraction and analysed by gas chromatography coupled with electron impact ionization-mass spectrometry (GC-MS).
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