The water resistance of PVA was increased by using urea. The product was tested by the method of solvent extraction. The best modification condition was found.
用尿素对聚乙烯醇基料进行了改性，使其耐水性得到提高。并用溶剂萃取法对其耐水性进行了测试，确定了最佳改性条件。
The method of extracting the auxin in seaweeds with organic solvent, separating and purifying the auxin by ether extraction method and column chromatography has been established.
确立了以有机溶剂提取海藻中的生长素，以乙醚萃取法和柱层析法对生长素进行分离纯化的方法。
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。
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。
The use of three methods for extraction of peony seeds Mechanical crushing extraction method, Organic solvent extraction method, Supercritical CO_2 extraction method.
利用三种方法对牡丹籽进行萃取：机械压榨法、有机溶剂萃取法、超临界CO_2萃取法提取牡丹籽油。
Methods: Ethanol as solvent, using ultrasonic extraction method of total flavonoids in propolis extracted using ultraviolet-visible spectrophotometry of total flavonoids were determined.
方法：以乙醇为溶剂，采用超声提取的方法对蜂胶中的总黄酮进行提取，利用紫外-可见分光光度法对总黄酮的含量进行测定。
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。
Solvent extraction experiment has been done, in which the feedstock of xinjiang vacuum residue was mixed with RFCC slurry by the method of Supercritical Fluid extraction and Fractionation (SFEF).
以新疆减压渣油中掺入不同比例的重油催化裂化油浆为原料，在超临界流体萃取分馏装置上，进行丁烷脱沥青试验。
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。
Pressurized solvent extraction (PSE) of imidacloprid in soil comparing to traditional method such as ultrasonic extraction, shaking extraction and Soxhlet extraction were studied.
对土壤样品中吡虫啉快速压力溶剂萃取技术（PSE）与传统提取方法（超声波萃取、振荡提取和索氏萃取）进行了对比研究。
The results show that supersonic method is superior to the solvent extraction method, the process with supersonic cost less time and extract more amounts of Aloesin.
实验表明：超声提取法优于溶剂提取法，所用的时间短，提取率高。
Taking mulberry seeds as raw material, the extraction parameters of protein from mulberry seeds by the salt solvent method was investigated.
以桑椹籽为原料，对盐溶法提取桑椹籽蛋白质的参数进行了优化。
Meanwhile, an effective method of obtaining acidic components from heavy oil by solvent extraction was provided and the suitable extraction condition was explored.
同时建立了一种有效的溶剂萃取、浓缩超稠油中酸性组分的分离方法，并探讨了适宜的萃取条件。
The technology on extraction of Tenebrio molitor oil by organic solvent method was investigated in this paper.
以黄粉虫为原料，研究了有机溶剂法提取黄粉虫油脂的工艺。
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。
12 kinds of dioxin-like polychlorinated biphenyls(PCBs)in soil were determined by accelerated solvent extraction(ASE)and gas chromatography method.
采用加速溶剂萃取（ASE）—气相色谱法测定土壤中的12种类二恶英多氯联苯。
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。
Compared with traditional solvent extraction, the method of supercritical CO2 extraction has the advantages of short extraction time, high extraction efficiency and no poisonous waste etc.
与传统的有机溶剂萃取法相比超临界CO2萃取法具有省时、萃取效率高且无有毒废弃物等优点。
Compared with common sample pretreating method of organic solvent extraction, this method showed the advantages of simple procedure, very little loss of analyzed sample, rapidity and sensitivity.
相比目前常用的有机溶剂萃取的样品处理方法，该方法显示了步骤简单、待分析物损失量小和快速灵敏的优点。
Therefore, it is possible to use the cheap solvents (mixture of methanol and water) instead of the expensive hexane and acetone when the Accelerated Solvent Extraction method is employed.
这表明采用加速溶剂提取技术，可用价格较低的甲醇取代昂贵的正己烷和丙酮。
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 effect of four factors, reaction time, solvent-to-solid ratio, acid-to-coal ratio and the water content in extraction mixture, were studied on the extraction rate of acetone-sulfuric acid method.
研究反应时间、液固比、酸煤比、提取液含水量四个因素对硫酸丙酮法提取效果的影响。
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。
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。
The method of organic solvent extraction was used in this experiment.
本实验采用有机溶剂抽提法。
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 method of enzyme-solvent extraction process for ginkgo biloba leaves was studied.
研究了酶法与溶剂提取相结合提取银杏叶中活性成分银杏黄酮的工艺条件。
The method of enzyme-solvent extraction process for ginkgo biloba leaves was studied.
研究了酶法与溶剂提取相结合提取银杏叶中活性成分银杏黄酮的工艺条件。
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