Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.
分别采用硅胶柱色谱法和溶剂抽提，分离优质塑料抛光膏中的油脂和磨料部分。
Accelerated solvent extraction is a novel technique to pretreat samples. In this paper, the principle, influence factors, advantages and applications in all kinds of fields are discussed in detail.
加速溶剂萃取是一项新颖的样品前处理技术。本文详细地讨论该技术的基本原理，影响因素、突出的优点及应用。
Accelerated solvent extraction is a novel technique to pretreat samples.
加速溶剂萃取是一项新颖的样品前处理技术。
As a new method of nickel extractive metallurgy, the process of chlorine leaching purification electrolysis for nickel sulphide concentrate usually USES solvent extraction as its purification.
硫化镍精矿氯气浸出—净化—电积工艺作为镍提取冶金的新方向，其净化过程大多采用溶剂萃取方法。
This study developed a method for simultaneous determination of 47 organophosphorous pesticides in greasy wool by accelerated solvent extraction (ASE) coupled with GC-NPD.
建立了快速溶剂萃取-气相色谱法同时测定含脂羊毛中47种有机磷杀虫剂残留量的方法。
In solvent extraction processes such as the separation of copper or rare earth elements, it will make a great progress to increase extractor efficiency and decrease solvent inventory and entrainment.
对于湿法冶金溶剂萃取过程，如铜或稀土等的分离可望在提高设备效率，降低溶剂装量，减少相夹带等关键技术方面取得突破性进展。
The method of extraction by supercritical carbon dioxide is a method of using carbon dioxide as solvent for extracting.
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。
This article introduced a new method of automatic extraction Accelerated Solvent Extraction (ASE), and its principle and application for residual analysis of pesticides.
本文介绍了一种新型的全自动萃取方法-快速溶剂萃取（ASE）技术，以及它在农药残留分析中的应用。
A method for extraction of aromatic hydrocarbon using sulfolane as solvent is described.
介绍以环丁砜为溶剂、萃取芳烃的方法。
It has a promising profit that extraction of biological molecule by reversed micellar, for the more mild operational condition, higher extraction yield, lower cost and solvent recycling.
反胶束萃取技术具有条件温和，萃取效率高，成本低，溶剂可重复利用，不引起萃取物变性等优点，用于纯化生物物质前景广阔。
Unlike conventional solvent extraction, membrane extraction is a dispersion-free extraction process.
与通常的溶剂萃取过程不同，膜萃取过程中没有相分散行为发生。
Determination of free water for compound fertilizers is usually applied Karl Fischer method or vacuum oven method, a different extraction solvent can selected as Karl Frscher method is applied.
复混肥料中游离水含量的测定方法通常采用卡尔·费休法或真空烘箱法，用卡尔·费休法测定时又可选用不同的萃取剂。
The ultrasonic extraction can be done in a shorter time, and its solvent is easier to recycle, which is conducive to further separation or purification of tannin or making further study on it.
超声技术可以缩短提取时间，溶剂易回收，有利于下一步鞣质的分离纯化及更深度的研究。
It is pointed out in the article that it is a key factor to select a solvent in extraction technique.
文中指出，萃取法中溶剂选择是一个关键因素。
Ionic liquid is a kind of green solvent and as extraction medium could avoid environmental pollution of conventional hydrometallurgy due to volatilization of organic solvent.
离子液体是一种绿色溶剂，它作为萃取介质可避免传统湿法冶金因有机溶剂挥发产生的环境污染。
In this dissertation, a process of recovery zinc from low grade zinc oxide ore with HL - SX - EW was studied on the research of zinc solvent extraction.
论文研究了锌溶剂萃取工艺，提出了氧化锌矿渗滤浸出—萃取—电积工艺流程。
A method for the determination of 6 phthalate esters (PAEs) by gas chromatography-mass spectrometry (GC-MS) with accelerated solvent extraction (ASE) sample preparation was developed.
应用加速溶剂萃取，气相色谱-质谱联用法测定土壤中6种邻苯二甲酸酯类有机污染物。
Solvent extraction is a kind of effective method in separating and purifying rare earth. The result of extraction and separation of different extractants is different.
溶剂萃取法是分离提纯稀土的一种有效方法，由于萃取剂的不同导致萃取分离稀土元素的效果不一。
The solvent countercurrent extraction process for total flavonoids from Toona sinensis (A Juss.
优选香椿叶总黄酮的最佳提取工艺。
It is a new membrane separation technique combining the advantages of solid membrane separation and solvent extraction.
液膜分离技术结合了固体膜分离法和溶剂萃取法的特点，是一种新型的膜分离方法。
METHODS Indicated by the content of sennoside A, the conditions of residue solvent extraction and resin purification were determined by single factor trial.
方法番泻苷A为指标，以单因素考察确定药渣溶剂提取与树脂精制条件。
A gas chromatographic method for analysis of hydrocarbons in edible oil extraction solvent was developed.
建立了食用油脂浸出溶剂组成的气相色谱分析方法。
The utility model is a solvent heating countercurrent extractor which is used for the extraction of the heat sensitivity natural products.
本实用新型是一种溶剂热逆流萃取器，用于萃取热敏性天然产物。
Abstract : A process for extraction of absolute oil from Sichuan 'paste' tobacco was optimized through single factor test and orthogonal test with n-hexane as extraction solvent.
摘要 ： 以四川‘糊烟’为原料，正己烷为提取溶剂，在单因素试验基础上再经正交试验优化‘糊烟’净油提取工艺；
Bright stock Refined, high viscosity lubricating oil usually made residual stocks by suitable treatment, such as a combination of acid treatment or solvent extraction with dewaxing or clay finishing.
加工处理的方式包括：酸处理(或溶剂萃取)脱蜡(或粘土精制)相结合。
Abstract: butadiene extraction unit in the presence of a large amount of solvent and butadiene, acetylene and other C4 hydrocarbons, these substances are toxic, flammable and explosive.
摘要：丁二烯抽提装置中由于存在大量的溶剂和丁二烯、炔烃等C4烃类，这些物质都是有毒、易燃、易爆的。
For solving the problems of soybean oil extraction using 95% ethanol as solvent, a new oilseed pre-treatment method was proposed.
为解决95%乙醇浸出大豆油工艺中的几个难点，探索了新的油料预处理方法。
This paper conducted a triaL of resveratroL organic soLvent extraction.
本论文进行了白藜芦醇的有机溶剂提取试验。
The results showed that it was a simple method with good reproducibility and high recovery rate in determining gossypol content in methanol phase from two-phase solvent extraction.
结果表明，该方法具有简便、重复性好、回收率高等优点，可用于双液相浸取棉仁的甲醇相中棉酚含量的测定。
The results showed that it was a simple method with good reproducibility and high recovery rate in determining gossypol content in methanol phase from two-phase solvent extraction.
结果表明，该方法具有简便、重复性好、回收率高等优点，可用于双液相浸取棉仁的甲醇相中棉酚含量的测定。
应用推荐