方法选择醋酸乙酯为萃取溶剂；
考查了萃取溶剂、萃取时间、盐效应对萃取的影响。
Extraction solvent, extraction time, and salt density were optimized.
研究表明，溶质的亲油性可以作为选择萃取溶剂的依据。
The results show that the hydrophobicity of solutes can be a standard for selecting suitable solvents.
超临界二氧化碳萃取法是使用二氧化碳作为萃取溶剂的方法。
The method of extraction by supercritical carbon dioxide is a method of using carbon dioxide as solvent for extracting.
考察了萃取溶剂、萃取时间和水浴温度等因素对测定的影响。
Influences of types of extraction solvent, time of extraction and temperature of water bath on the experimental results were investigated and optimized.
在实验过程中，液体水样在泵的作用下，通过喷头与萃取溶剂接触。
The liquid phase water sample was continuously injected into extracting organic solvent by spray pumping.
对萃取溶剂及其体积、分散剂及其体积、萃取时间等条件进行了优化。
The influence of extraction parameters including the types and volumes of extraction solvent and disperser solvent as well as extraction time were investigated.
使用的萃取溶剂可以是有机溶剂、缓冲盐水溶液、水和少量的无机酸。
The ASE 150 can be used with organic solvent, aqueous buffer, water, and small amounts of mineral acids.
实验表明，处理不同相对分子质量的PECH，应采用不同的萃取溶剂。
It is discovered through experiment that treating PECHs with different relative molecular mass should use different extraction solvents.
研究结果表明三维溶解度参数球形模型可以为筛选萃取溶剂提 供依据。
Therefore, the three-dimensional solubility parameters sphere model can provide the basis for the solvent selection for extraction.
采用本设计的方法模拟计算了两个萃取溶剂设计实例，获得了令人满意的效果。
The new method has been proved successful by two case studies in simulating molecular design of extractive solvents.
微波萃取方法具有方便、快速、试剂消耗低、回收率高和可用水作萃取溶剂的优点。
Microwave assisted extraction methods have shown many advantages: simplicity, speed, low consumption of solvent , and possibility of using water as extraction solvent.
提出一种萃取溶剂分子设计中预选官能团的新方法，可以有效地缩小分子设计问题的规模。
A new method was proposed to preselect group for molecular design of extraction solvents, which can reduce the workload of molecular design efficiently.
由于增加了水样与萃取溶剂之间的接触表面积和碰撞的强度，因此大大的提高了萃取效率。
It is greatly increased extraction efficiency within short extraction time due to increasing both of interaction surface area and collision probability between water and organic solvent.
氧化后的氧化剂转化为萃取溶剂，以移出硫氧化物和氮氧化物，因此，没有废酸形成的困扰。
Furthermore, the oxidant is converted into an extractive solvent for removing oxidized sulfur and nitrogen compounds from the oxidized petroleum oils after oxidation step.
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.
方法以甲醇为萃取溶剂，采用超声提取法对样品进行前处理，采用气相色谱-质谱联用法进行检测。
Methods The organic residues were extracted from samples by ultrasonic extraction with methanol and analyzed by gas chromatography-mass spectrometry.
压缩或超临界流体作为良好的萃取溶剂，在食品加工与保藏、制药和生物材料加工等领域有广阔的应用前景。
Compressed or supercritical fluids are excellent extraction solvents. They have got wide applications in food processing and storage, medicine making, as well as biomaterials processing.
通过选用不同萃取溶剂萃取置换焦化废水中的难降解物质，研究了萃取溶剂对焦化废水中不同类别有机物的去除特性。
This thesis studied the extraction features of different organics in ways of treating coking wastewater with extraction displacement by different extractants.
在本论文中，系统地研究了影响萃取率的参数，主要参数包括：惰性气体流速、萃取时间、萃取溶剂类型、样品加热温度和萃取溶剂温度等等。
In this paper, the effecting parameters on the extraction efficiency such as gas flow rate, extraction time, extracting solvent type, temperature of sample and extracting solvent were investigated.
然后将咖啡渣过滤，萃取出溶剂(溶剂可被用到下次的溶解过程中)。
The grounds are then filtered out and the solvents separated (to be reused with the next batch of coffee grounds).
这种蜡质属于乙醇或有机溶剂的萃取物。
The waxes are classed as alcohol or organic solvent extracted materials.
利用浸渍溶剂的多孔介质进行萃取是一种有效的分离方法。
The extraction technology using the porous media to be impregnated by solvent is an effective separation method.
这种蜡质属于乙醇有机溶剂的萃取物。
The waxes are classed as alcohol or organic solvent extracted materials.
对传统的溶剂萃取盐析效应提出了一些新的观点。
These results also bring some new ideas into the traditional theories of solvent extraction salting-out effect.
乙酸乙酯是性能优良的溶剂、萃取剂和重要的化工原料。
Ethyl acetate is an excellent solvent and extractant and is an important chemical material too.
溶剂萃取化学所研究的问题实际上是两相间的配位化学。
The research of solvent extraction chemistry is actually the coordination chemistry between two phases.
本文研究了溶剂萃取法去除糠醛废水中醋酸的工艺过程。
The process of removing acetic acid from furfural wastewater by solvent extraction is studied in this paper.
溶剂萃取是向废水中投加不溶于水的溶剂。
Solvent extraction is accomplished by the addition of an immiscible solvent to the wastewater.
溶剂萃取是向废水中投加不溶于水的溶剂。
Solvent extraction is accomplished by the addition of an immiscible solvent to the wastewater.
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