Conventional organic sample preparation methods, such as liquid-liquid extraction and solid phase extraction, are time and solvent consuming, and often involve several complicated procedures.
传统的有机物样品分析前处理方法主要有液-液萃取、固相萃取等方法，这些方法具有耗时长、操作繁琐、且需要大量有机溶剂等缺点。
The progress and industrial application prospects of enhanced liquid-liquid extraction by electric fields were discussed.
讨论电场强化液-液萃取的进展和工业应用前景。
Liquid-Liquid Extraction (LLE) is a kind of tradition sample pretreatment method. There are 70 percent of documents which adopt Liquid-Liquid Extraction as a way of sample pretreatment.
液-液萃取(LLE)是一种传统的样品前处理技术，报道目前有70%的有关文献采用液-液萃取作为样品前处理方式。
Learn how to "work up" your reaction using a separatory funnel to perform a liquid-liquid extraction.
用分液漏斗示范液-液萃取并学习如何用“完整的反应操作步骤”检查你的反应能否发生。
Now, in general, the produce of antibiotic is firstly extracted by clarification and solvent, and is separated from fermentation liquid and at last do the vacuum evaporation of the liquid extraction.
现代抗生素的生产一般首先是通过澄清和溶剂萃取从发酵液中加以分离，在对萃取液进行真空蒸发制得。
Membrane extraction process is a new separation technology which combines liquid-liquid extraction with membrane process.
膜萃取是膜过程与液液萃取过程相结合的一种新型分离技术。
Membrane extraction process is a new separation technology which combines the membrane process with liquid-liquid extraction.
膜萃取是膜过程和液液萃取过程相结合的一种新型分离技术。
Annular centrifugal extractor is a new type of high efficient liquid-liquid extraction equipment. It has many obvious advantages.
环隙式离心萃取器是一种新型的高效液-液萃取设备，具有许多显著优点。
Recovery copper and molybdenum from low grade molybdenum slag has been studied, and a new NaOH digestion and liquid-liquid extraction process has been developed.
本论文全面总结了从除钼渣中综合回收铜、钼、钨的研究成果，提出了处理除钼渣的碱分解—萃取新工艺。
Methods The extraction of anthraquinone from rhubarb was performed by liquid-liquid continuous biphasic extraction and this method was compared with 3 general solvent methods.
方法采用自制装置双相水解连续萃取法提取蒽醌衍生物，并和常用的3种溶剂法对比。
This paper briefly introduces the preparation technique of liquid membrane, and the distribution over extraction reagent of liquid-liquid extraction.
简要介绍了液膜萃取制备工艺，液—液萃取的萃取剂分类。
The system of continuous liquid liquid extraction dispersion free FI on line monitoring is investigated.
研究并建立了一种液液连续萃取无分散流动注射（FI）在线监测系统。
Tea polyphenol is the major physiological active component in tea, and it is generally manufactured by liquid-liquid extraction technology, using ethyl acetate as solvent from water extract of tea.
茶多酚是茶叶中主要生理活性物质，其制造方法一般采用液-液萃取工艺，以醋酸乙酯为溶剂，从茶汤中萃取出茶多酚。
Liquid-Liquid Extraction is a typical and traditional method of preparation that deals with complicated samples. Now it is still used in 70% retention analyses of pesticides.
液液萃取技术是一种成熟的复杂样品预处理技术，大约70%的农药残留分析现在仍采用它进行样品预处理。
The samples were extracted by liquid-liquid extraction method.
以尼莫地平为内标，样品采用液-液萃取。
In this paper, the definition, structure, content, origin and property of ionic liquid are introduced. In addition, the questions lying in liquid-liquid extraction are briefly discussed.
介绍了离子液体的定义、组成、产生及特点，阐述了离子液体应用于液-液萃取中所存在的问题。
As a promising sample preparation technique, SPE costs less time, selectivity, more effective than traditional liquid-liquid extraction.
该技术比传统液—液萃取用时短、二次污染小、选择性好，是一种很有前途的样品预处理技术。
The results indicated that this simulation method could be used to simulate many kinds of liquid-liquid extraction process.
分析结果表明，该模拟算法可准确迅速地适用于各类萃取过程的模拟计算。
When the stationary phase is a liquid or a solution partition mechanism governs the retention of reversed-phase paper chromatography just as in liquid-liquid extraction.
本文认为当固定相为液体或溶液时，反相纸层析与液液萃取一样属于分配机制。
The packing has high extraction efficiency and low capacity, and is one ideal kind of liquid-liquid extracting packing.
该填料萃取效率高，容量低，是一种较为理想的液液萃取填料。
METHOD the plasma samples were pre treated using simple liquid liquid extraction with NR 762 as the internal standard.
方法以NR 762为内标，血浆样品经简单的液液萃取后进行检测。
It is a new method for liquid - liquid extraction that the preconcentration of samples is based on micelle - mediated phase separation by the character of surfactant cloud point.
通过表面活性剂浊点特性实现胶束相分离以达到样品预富集，是一种新兴的液-液萃取方法。
It features that extraction liquid, strip-extraction liquor and raw material liquid flow in different layer, so resulting in short path of mass transfer, uniform film phase and high separation effect.
本发明装置可使萃取液、反萃取液和料液分别在不同层间流动，传质路径短，膜相均匀，分离效果好，适当组合的基本单元可构成具有工业实用性的系统装置。
Membrane extraction is a new separation technique combining membrane separation with liquid liquid extraction.
膜萃取是膜分离与液-液萃取相结合的一种新型分离技术。
The method has the advantages that: in the sample pretreatment, a simple liquid-liquid extraction method is adopted to purify and enrich the chloramphenicol in the serum;
其优点在于，在样品预处理中，采用简便的一次液-液萃取法对血清中氯霉 素进行净化和富集；
Thecolumn operates under the principles of liquid-liquid extraction and seeks to recover metals with high added value.
这种萃取柱技术以液-液萃取为基本原理，致力于回收高附加值金属。
Liquid-liquid extraction using reversed micelles is a promising biochemical separation approach, which can be easily scaled up, operated in moderate conditions and possesses high selectivity.
反胶团液-液萃取技术具有条件温和、高选择性、易放大等优点，是一种应用前景极好的生化分离方法。
A method for the spectrophotometric determination of trace Cu 2+ with flow injection liquid liquid extraction separation and pre concentration was developed.
用自制的分相器与流动注射仪联用，对有机相析出液- 液萃取光度法测定微量铜的流路参数和操作程序进行优化。
Liquid-liquid equilibrium data at atmospheric pressure was determined for the extractant S100, the initial concentration of the acetic acid and temperature on extraction process were studied.
采用液液相平衡釜法测定了常压下络合萃取剂s100的相平衡数据，考察了醋酸初始浓度和温度对萃取平衡过程的影响。
Liquid-liquid equilibrium data at atmospheric pressure was determined for the extractant S100, the initial concentration of the acetic acid and temperature on extraction process were studied.
采用液液相平衡釜法测定了常压下络合萃取剂s100的相平衡数据，考察了醋酸初始浓度和温度对萃取平衡过程的影响。
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