查询词典 extractant

It includes the following steps: extract trivalent iron ion and divalent iron ion in water phase through organic extractant, get predecessor of; absterge it with secondary distilled water for2-3 times and get pure load metal predecessor of organic phase; mix organic phase of Mg2 and Fe3 with mol rate of 1:2 and introduce them into autoclave, add distilled water according to the rate of 3:1 or 4:1 of organic phase and water phase and airproof it, and then mix it fiercely, stripping with hydrothermal method at temperature between 200 degree C and 300 degree C and make them react for 2.5 hours; cool it to the room temperature under natural condition, separate liquid and centrifugalize it, absterge it with absolute alcohol for 2-3 times and dry it at temperature of 50 degree C for 30-180 minutes, then get product of magnesium ferrite.

包括如下步骤：通过有机萃取剂来萃取水相中的三价铁离子和二价镁离子，制得有机相前驱物；用二次蒸馏水洗涤2-3次，获得纯净的负载金属有机相前驱物；按照Mg 2 和Fe 3 摩尔比1∶2将有机相混合均匀后引入高压釜中，按照有机相与水相的比例为3∶1或4∶1加入蒸馏水，密封后，对溶液进行强力搅拌，水热反萃的温度在200-300℃之间反应2.5小时；自然冷却至室温，分液，离心分离，用无水乙醇洗涤2-3次，在50℃下干燥30-180分钟，得铁酸镁产品。

In this paper,water-soluble ionic liquid BeS was used as extractant for sulfur compounds thiophene,2-methyl thiophene,benzothiophene,dibenzothiophene in simulated fuel and the feasible operation conditions were confirmed by extraction experiments.

选择水溶性的离子液体BeS作萃取剂，对模拟油品中的4种含硫有机物噻吩、2-甲基噻吩、苯并噻吩、二苯并噻吩进行了萃取，确定了适宜的萃取操作条件。

The inhibitory action of Cercospora zeae-maydis toxins which came from different condition of culture and extracting such as different method of culture, kind of nutrient fluid, culture time and extractant on maize radicle growth has been studied..

从液体培养基的种类、培养方式、培养天数、萃取溶剂等方面研究了不同培养条件获得的玉米灰斑病菌毒素对玉米胚根生长的抑制作用。

A molecularly imprinted solid phase extractant, particularly for the recognition of diphenylguanidine was prepared using diphenylguanidine as the template and bulk polymerization.

以二苯胍为模板分子，用本体聚合法合成了对二苯胍具有良好识别能力的分子印迹固相萃取剂。

It showed that the yield of hydroxyacetic acid reached above 99.5%, the extracting efficiency was over 97%,and the product with purity of more than 96% was obtained. Extractant and solvent also can be reused.

实验结果表明：羟基乙酸合成的反应产率达99.5%以上，羟基乙酸萃取率达97%以上，最终收率达96%，萃取剂与溶剂均可循环使用。

The nano ferric oxide powder was prepared by using methyl isobutyl ketone as extractant.

以轧钢皮粉为原料，利用甲基异丁基甲酮对铁的高萃取性采用萃取法制取高纯氧化铁红，探讨了萃取工艺对氧化铁收率的影响。

Company combine production with study and research,establish cooperative relationship with many domestic scientific research colleges and universities, constantly develop coccidiostats, antiviral drug and traditional Chinese medicine extractant which treatment respiratory diseases etc. new veterinary drug,also Invest and build Kangli Wolongtu Chinese herbal medicine planting bases of GAP Standardization in more than 10,000 acres.

公司坚持以&开发绿色产品，关爱人类健康&为经营理念，重视民族医药的发展，自主研发的新兽药抗球虫、抗病毒药物及治疗呼吸道疾病的中药提取剂，疗效显著；并投资建成与之配套的康利卧龙图中草药GAP标准化种植基地1000余亩。

Microwave-assisted extraction and soak extraction were selected to obtain extracts from seeds of Datura metel with ethanol+water (1:1) as extractant and its activity against pest insects was determined.

以乙醇＋水(1：1)作为溶剂，采用微波辅助提取、浸泡提取等方法，从白花曼陀罗种子中得到提取液，用此液对春尺蠖等昆虫进行了活性测定。

A study on the metal ion-extractant interaction in the extraction of ncodymium and other trivalent lanthanide ions with monoacidic organophosphorus compounds by means of IR, NMR and electronic spectra is presented in this dissertation.

本文运用IR、NMR、电子光谱等手段研究了烷基磷酸在萃取Nd等三价镧系离子时的配位作用，通过f—f吸收光谱计算进行了Nd

The extraction distribution ratios have been measured as a function of shaking time, counter anion, pH value, picric acid concentration, extractant concentration, diluent and temperature.

利用放射性同位素示踪技术，系统研究了32种开链大环化合物对Am／Eu及Cs／Na的萃取分离行为。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。